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Abb Schweiz Ag patents


Recent patent applications related to Abb Schweiz Ag. Abb Schweiz Ag is listed as an Agent/Assignee. Note: Abb Schweiz Ag may have other listings under different names/spellings. We're not affiliated with Abb Schweiz Ag, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "A" | Abb Schweiz Ag-related inventors


Electric machine

The electric machine comprises a rotor, a stator surrounding the rotor and a support structure. The stator has a longitudinal centre axis and is supported on the support structure with support elements. ... Abb Schweiz Ag

Electric load center

An electrical load center for residential and commercial buildings includes an enclosure, a cover assembly, and a panelboard. The panelboard includes an insulated base, first and second bus bars, each of the first and second bus bars having an elongated main member, a plurality of connecting members, each of which is integrally formed from an edge of the main member, and a plurality of conducting members integrally formed from each of the connecting members. ... Abb Schweiz Ag

Disconnector and manufacturing method

A disconnector (100) and a method for manufacturing the disconnector (100) are disclosed. The disconnector (100) includes conductive arms (110) pivotally coupled with each other, and finger contacts (111). ... Abb Schweiz Ag

Method of manufacturing a capacitive electrical device

A method of manufacturing a capacitive electrical device is disclosed. The method includes a) bonding a first electrical insulation film with a second electrical insulation film to obtain a single electrical insulation film that has a larger surface area than any of the first electrical insulation film and the second electrical insulation film has alone, b) providing a conductive layer onto the single electrical insulation film, and c) winding the single electrical insulation film and the conductive layer around a shaft to obtain a layer of the single electrical insulation film and a layer of the conductive layer wound onto the shaft, thereby forming the capacitive electrical device.. ... Abb Schweiz Ag

System having electrical machine and controller

A unique system may include a power absorber; an electrical machine coupled to the power absorber and operative to supply mechanical power to the power absorber; a drive coupled to the electrical machine and operative to supply electrical power to drive the electrical machine; and a controller communicatively coupled to the drive. The controller may be configured to execute program instructions to selectively vary a control voltage while maintaining a given torque output of the electrical machine, and to determine, based on varying the control voltage, a minimum current required for the electrical machine to maintain the given torque output.. ... Abb Schweiz Ag

A method for correcting effect of saturation in current transformer and an intelligent electronic device therefor

A method for generating corrected measured current in an intelligent electronic device (ied) that is a true representation of primary current in an electrical network is disclosed. The method uses regression and a first threshold on measured sampled values from ct to detect a deviation instance that indicates a possibility of saturation. ... Abb Schweiz Ag

Rotor for electric machine and electric machine comprising the same

A rotor for an electric machine, the rotor including a rotor core having an outer portion and an inner portion located closer to the rotation axis of the rotor core than the outer portion. The outer portion is connected to the inner portion through a plurality of spokes, and the rotor core is adapted to be connected to a rotor shaft by a shrink fit. ... Abb Schweiz Ag

Systems and methods for performing building energy management

A method for performing energy management for a building includes generating a stack of energy loads representative of a plurality of building energy loads. The energy loads are prioritized from highest priority energy loads to lowest priority energy loads. ... Abb Schweiz Ag

Small grid load control

A microgrid is disclosed which includes a number of electrical loads and a number of potential grid forming sources. The potential grid forming sources can include an electrical grid, photovoltaic (pv) system, energy storage system, and a generator, among potential others. ... Abb Schweiz Ag

Method of building an insulation system around a naked conductor section of a power cable

A method of building an insulation system around a naked conductor section of a power cable. The insulation system includes an inner semiconducting layer arranged around the conductor, an insulation layer arranged around the inner semiconducting layer, and an outer semiconducting layer arranged around the insulation layer. ... Abb Schweiz Ag

Particle extraction system for an interrupter

A particle extraction system for an electrical interrupter is disclosed in the present application. The particle extraction system includes a support bay configured to hold an electrical interrupter in position during a particle extraction event. ... Abb Schweiz Ag

Inspection system for inspecting an internal component of a machine

An inspection system for inspecting an internal component of a machine includes a remote controlled vehicle constructed to fit inside a desired portion of the machine; a controller operative to control an operation of the remote controlled vehicle; a tether coupled to the controller and to the remote controlled vehicle, wherein the tether is operative to transmit control signals from the controller to the remote controlled vehicle; and an imaging device extending from a front portion of the remote controlled vehicle and operative to view the internal component. The imaging device has a flexible articulating tip spaced apart from the front portion of the body.. ... Abb Schweiz Ag

Object multi-perspective inspection apparatus and method therefor

It is therefore an objective to provide an object multi-perspective inspection apparatus and a method therefor. The apparatus includes an image capture device; an inspection site and at least two reflection devices, being arranged for reflecting simultaneously to the image capture device at least two different side views of the object located in the inspection site; wherein: the image capture device has a field of view including the at least two different side views of the reflection. ... Abb Schweiz Ag

Method and system for manufacturing an article

A method for manufacturing an article includes initiating additive manufacturing of the article, and forming a portion of the article using an additive manufacturing process on an additive manufacturing system. The additive manufacturing process may be paused, and a procedure may be performed on the article. ... Abb Schweiz Ag

06/28/18 / #20180183229

A passive electronic fuse for protecting a dc application

A passive electronic fuse for protecting a dc application in the event of a fault includes a first leg including a first winding of a mutual inductor and a switch device connected in series, a second leg including a second winding of the mutual inductor. The first leg and the second leg are connected in parallel and a self-inductance of the second winding is lower than a self-inductance of the first winding. ... Abb Schweiz Ag

06/28/18 / #20180183220

Drive device for vacuum circuit breaker chassis

The present invention provides a drive device for a middle-high voltage vacuum circuit breaker chassis, which comprises a drive motor (10), a clutch (11) and a drive chain wheel (12); the clutch (11) is installed on an output shaft of the drive motor (10), the drive chain wheel (12) is directly fixed with the clutch (11), and the drive chain wheel (12) is driven by the drive motor (10) through the clutch (11). The drive device further comprises a driven chain wheel (13) and a chain (14) or a belt, the driven chain wheel (13) is fitted over a lead screw (15) of the chassis; and the driven chain wheel (13) is driven by the drive chain wheel (12) through the chain (14) so as to drive the lead screw (15) to rotate together. ... Abb Schweiz Ag

06/21/18 / #20180175697

Electric machine

Electric machine comprises a rotor and a stator surrounding the rotor. The stator comprises a cylindrical stator core having a laminated structure and slots for a stator winding and a stator frame surrounding the stator core. ... Abb Schweiz Ag

06/21/18 / #20180175622

Power transmission arrangement and method for operating a power transmission arrangement

Embodiments are generally based on employing a power transmission line in a hvdc link to provide auxiliary power to one of the ends of the hvdc link for facilitating a black start thereof when the hvdc link is de-energized, i.e. When at least one of the hvdc converter stations is de-energized and there is no transmission of power between inverter and rectifier hvdc converter stations on each side of the hvdc link. ... Abb Schweiz Ag

06/21/18 / #20180174785

Gas-insulated medium voltage switchgear with a circuit breaker pole part arrangement

A gas-insulated medium voltage switchgear includes: a circuit breaker pole part arrangement in a gastight compartment of the switchgear; a drive arrangement for switching actuation of the circuit breaker, the drive arrangement and the pole part arrangement being fixed on a common plate or frame, which is provided with the gastight compartment, and being configured to close the gastight compartment gastightly such that in a completely mounted position of the plate or frame, the circuit breaker pole part arrangement is positioned inside the gastight compartment, and the drive arrangement is positioned outside the gastight compartment; and a standardized circuit breaker drive adaptable to switchgear arrangements with different pole distances. The plate or frame is provided with holes, in which gastight mechanical feedtroughs are arranged, through which the standardized circuit breaker drive is coupled with each vacuum interrupter in the circuit breaker pole part arrangement.. ... Abb Schweiz Ag

06/21/18 / #20180172586

Measurement of hydrocarbon contamination in water

A method for performing infrared analysis for measuring hydrocarbon contamination in water includes providing light from a light source; directing light from the light source through an experimental water sample; detecting the light transmitted from the experimental water sample; and determining a level of hydrocarbon contamination in the experimental water sample based on the light loss in the range between about 5700 cm−1 and 6300 cm−1. An apparatus for performing infrared analysis for measuring hydrocarbon contamination in water includes a controller operative to determine light loss through the sample cell and to determine a level of hydrocarbon contamination in the experimental water sample based on the light loss in the range between about 5700 cm−1 and 6300 cm−1.. ... Abb Schweiz Ag

06/14/18 / #20180167815

Apparatus, systems and methods providing diagnostic and programming access to intelligent electronic devices in electrical power installations

Apparatuses, systems and methods for providing a remote user computing system with secure wireless diagnostic and programming access to an ied operatively coupled with electrical substation equipment are disclosed. An exemplary apparatus comprises a portable computer system comprising a processor and one or more non-transitory memory media storing executable instructions and a cellular modem in operative communication with one another. ... Abb Schweiz Ag

06/14/18 / #20180167027

Multi-channel inverter for a photovoltaic apparatus

An inverter for a photovoltaic apparatus, said inverter comprising a dc electric bus having a plurality of electric lines forming corresponding dc input channels for said inverter. The inverter comprises a choke filter comprising a single magnetic circuit and a plurality of choke windings enchained with said magnetic circuit. ... Abb Schweiz Ag

06/14/18 / #20180167010

Method and device for detecting the presence of a permanent magnet of a rotor of a synchronous machine

A method of detecting a permanent magnet rotor of a synchronous machine, includes: injecting a voltage waveform to the stator windings of the synchronous machine, measuring two phase currents in the stator winding, transforming the two phase currents to a rotor reference frame to obtain a current waveform, sampling the current waveform to obtain positive and negative portion values, constructing first and second periodic waveforms by using the sampled positive and negative portion values, performing a frequency analysis of a first and second spectrums of the periodic waveforms, and determining whether a permanent magnet is present in the synchronous machine based on the spectrums.. . ... Abb Schweiz Ag

06/14/18 / #20180166972

Fault isolation and system restoration using power converter

Unique systems, methods, techniques and apparatuses of a dc fault isolation system are disclosed. One exemplary embodiment is a power conversion system comprising a converter including a midpoint connection structured to receive ac power, a first converter arm, a second converter arm, and a control system. ... Abb Schweiz Ag

06/14/18 / #20180166937

Synchronous reluctance machine

An assembly that can enhance the power factor of synchronous reluctance (synrel) machines. The assembly can include one or more pickup coils that are at least proximally adjacent to an outer periphery of a rotor that are structured to harvest energy in an air gap between the rotor and a stator. ... Abb Schweiz Ag

06/14/18 / #20180166881

Medium voltage direct current power collection systems and methods

Unique systems, methods, techniques and apparatuses of a power collection system are disclosed herein. One exemplary embodiment is an mvdc collection system coupled to a utility grid including a collection bus, a plurality of branches coupled to the collection bus, and a branch controller. ... Abb Schweiz Ag

06/14/18 / #20180166212

Electrostatic shield

A shield member that is configured to prevent the partial discharge of an accumulated electrical charge that buildup or accumulate at or around edge surfaces of the shield member, including, for example, at or around the surfaces and/or relatively sharp corners of cut edge surfaces. The edge surfaces can be offset from ends of the shield member such that the edge surfaces are recessed in an overlapped portion of the shield member. ... Abb Schweiz Ag

06/07/18 / #20180159854

Secure mobile access for automation systems

An industrial automation and control system is provided with a control unit and at least one electronic device. The system establishes a first data connection to an external maintenance unit. ... Abb Schweiz Ag

06/07/18 / #20180158630

Switching device and an electric power distribution switchgear

A power distribution switchgear including a housing to which a switch is mounted, housing has an opening, the first and second electric contact connected to a first and second conductors. A rotating operating shaft of inserted into the opening, and an actuator having a first end coupled to the shaft and a second end coupled to the second contact. ... Abb Schweiz Ag

06/07/18 / #20180158596

Transformer arrangement and method for controlling pressure in a liquid-filled transformer

A transformer including a transformer tank, an expansion tank, and piping connecting the tanks enabling liquid to flow there between. The piping includes a valve configured for liquid to flow from the transformer to the expansion tank when the pressure is above a predefined first threshold and for preventing the liquid to flow from the transformer to the expansion tank when the pressure is below the first threshold. ... Abb Schweiz Ag

06/07/18 / #20180158589

Double-pole voltage transformer

The application invention generally deals with a double-pole voltage transformer enclosed in a tight enclosure made in the form of a resin cast comprising a central element integrated with a base and comprising circumferential sheds and two bushings situated above the circumferential sheds on the central element. The central element has the form of a circular cylinder situated with its side wall horizontally on the base plane, and the circumferential sheds are situated around the central element only in the area of the contact between the central element and the base, and above the circumferential sheds there are side elements of the cast forming side sheds, and above the side sheds there is situated a circumferential top shed surrounding a fragment of the side surface of the central element, and the bushings are detachably joined with the central element through projections respectively.. ... Abb Schweiz Ag

06/07/18 / #20180158573

Power transmission cable

A high voltage or medium voltage transmission power cable includes a metallic conductor and an insulation system including an electrical insulation layer including a first composite material, and a semiconducting layer including a second composite material. The insulation layer and the semiconducting layer are arranged to surround the conductor. ... Abb Schweiz Ag

06/07/18 / #20180158232

Submersible inspection device and vision based modelling

A submersible vehicle which includes a plurality of cameras can be used to collect visual images of an object of interest submerged in a liquid environment, such as in a tank (e.g. Transformer tank). ... Abb Schweiz Ag

06/07/18 / #20180157251

Submersible inspection device and redundant wireless communicaiton with a base station

A submersible inspection device used for inspection of, for example, liquid cooled electrical transformers can include a number of separate cameras for imaging the internal structure of the transformer. The submersible can be configured to communicate to a base station using a number of wireless transmitters and receivers. ... Abb Schweiz Ag

06/07/18 / #20180154995

Submersible drone having active ballast system

A submersible inspection drone used for inspection can include a ballast system used to control depth of the submersible inspection drone. The submersible can be configured to communicate to a base station using a wireless transmitter and receiver. ... Abb Schweiz Ag

06/07/18 / #20180154518

User interface for a teleoperated robot

A teleoperated robotic system that utilizes a graphical user interface (gui) to perform work on a workpiece(s) using a robot. A coordinate system of the gui can be correlated to the tool center point (tcp) of the robot and the tcp or workspace of a teleoperated member, such as a haptic joystick. ... Abb Schweiz Ag

05/31/18 / #20180151367

Method for manufacturing a semiconductor device comprising a thin semiconductor wafer

A method for manufacturing a vertical power semiconductor device is provided, wherein a first impurity is provided at the first main side of a semiconductor wafer. A first oxide layer is formed on the first main side of the wafer, wherein the first oxide layer is partially doped with a second impurity in such way that any first portion of the first oxide layer which is doped with the second impurity is spaced away from the semiconductor wafer by a second portion of the first oxide layer which is not doped with the second impurity and which is disposed between the first portion of the first oxide layer and the first main side of the semiconductor wafer. ... Abb Schweiz Ag

05/31/18 / #20180151310

Installation switching device having a contact clamp

An installation switching device includes: a housing; and at least one contact clamp, which is arranged in the housing, for connecting at least one electrical conductor through a conductor insertion opening that is provided in the housing, the contact clamp including a clamping frame that has a rectangular cross section and a clamping screw that engages in a first narrow end side of the clamping frame and a clamping end of the clamping screw being cooperating with a section of a contact rail that is fixedly mounted in the housing of the installation switching device, the section being located within the clamping frame, so that a second narrow end side that lies opposite the first narrow end side and is connected thereto via two longitudinal sides that lie opposite one another presses an inserted connecting conductor against a surface of the contact rail that is remote from the clamping screw.. . ... Abb Schweiz Ag

05/24/18 / #20180145579

Controlling a three-phase electrical converter

A method for controlling a three-phase electrical converter comprises: selecting a three-phase optimized pulse pattern from a table of pre-computed optimized pulse patterns based on a reference flux; determining a two-component optimal flux from the optimized pulse pattern and determine a one-component optimal third variable; determining a two-component flux error from a difference of the optimal flux and an estimated flux estimated based on measurements in the electrical converter; determining a one-component third variable error from a difference of the optimal third variable and an estimated third variable; modifying the optimized pulse pattern by time-shifting switching instants of the optimized pulse pattern such that a cost function depending on the time-shifts is minimized, wherein the cost function comprises a flux error term and a third variable error term, wherein the flux error term is based on a difference of the flux error and a flux correction function providing a flux correction based on the time-shifts and the third variable error term is based on a difference of the third variable error and a third variable correction function providing a third variable correction based on the time-shifts; and applying the modified optimized pulse pattern to the electrical converter.. . ... Abb Schweiz Ag

05/24/18 / #20180145538

Ups with source impedance compensation

The present invention provides a method for operation of an offline uninterrupted power supply (100), in particular a medium-voltage uninterrupted power supply, for providing power to a load in case of failure of a power source, the uninterrupted power supply (100) comprising at least one disconnect switch (112), which is arranged between the power source and the load, at least one energy storage (114), at least one power converter (116), which is arranged between the at least one energy storage (114) and the load at a load side of the disconnect switch (112), and a control device (120) for controlling the at least one power converter (116) to provide power from the at least one energy storage (114) to the load in case of failure of the power source, comprising the steps of identifying a power quality event, differentiating the identified power quality events to separate load side events from power supply side quality events, and upon identification of a power supply side power quality event from an identified power quality event, providing power from the at least one energy storage (114) to the load. The present invention also provides a offline uninterrupted power supply (100), in particular a medium-voltage uninterrupted power supply, to perform the above method.. ... Abb Schweiz Ag

05/24/18 / #20180145505

Travelling wave protection of a transmission line based on high-pass filtering

There is provided mechanisms for travelling wave protection of a transmission line. A method includes performing high-pass filtering of a current and/or voltage measurement of a transmission line so as to detect fault-caused high-frequency components of the current and/or voltage measurement. ... Abb Schweiz Ag

05/24/18 / #20180145487

Mechanical rack position indicator

A positional indicator system that includes a mounting bracket having a slot that extends along a linear slot axis. A drum may be rotably coupled to the mounting bracket so as to rotate about an axis that is offset from, and non-intersecting with, the slot axis. ... Abb Schweiz Ag

05/24/18 / #20180143238

Travelling wave pilot protection of a transmission line based on time synchronization

A mechanism for travelling wave pilot protection of a transmission line and method for receiving indications of a travelling wave from two terminals of a transmission line, wherein two terminals are time synchronized. The method includes making a trip decision based on the indications using a short trip window. ... Abb Schweiz Ag

05/24/18 / #20180141447

Charger for electric vehicles with distributed power converter arbitration

The present application relates to a charger for electric vehicles, comprising at least two power exchange ports for vehicles, each port comprising a data communication connection for at least receiving a power request from a vehicle, and a power exchange connection for delivering power to a vehicle; at least one grid connection for receiving electric power; a data communication bus, for communicating the power request from the vehicles to a plurality of autonomously controllable power converters, each for converting power from the grid connection to a suitable level for charging a vehicle; and each of the power converters comprises a data communication device, connected to the data bus, and configured for receiving power requests from vehicles; and configured for indicating its available power via the data bus.. . ... Abb Schweiz Ag

05/24/18 / #20180141184

A method and system for machining, and a robot system

The present invention discloses a method and system for machining a work piece by a machining tool, and a robot system using the same. The method comprises: defining a customized contact point on the machining tool by setting a contact point height of the machining tool; moving the machining tool against the work piece to apply predefined machining feeds. ... Abb Schweiz Ag

05/17/18 / #20180138825

Multi-level power converter and a method for controlling a multi-level power converter

A multi-level power converter for one or more phases includes one or more converter arms including a plurality of serial connected switching cells. Each switching cell includes a plurality of switching devices, a primary energy storage, a secondary energy storage and a first inductor. ... Abb Schweiz Ag

05/17/18 / #20180138734

An electronic charger for electric power distribution installations and a control method thereof

An electronic charger for electric power distribution installations is provided. The electronic charger includes a dc/dc converter of the sepic type including an input stage, an output stage and a coupling capacitor. ... Abb Schweiz Ag

05/17/18 / #20180135780

High strength single piece cable tie locking mechanism

A cable tie includes a flexible elongate strap and a head attached to a first end of the strap. The head has a front wall, side walls and a rear wall defining an aperture. ... Abb Schweiz Ag

05/10/18 / #20180131266

Control of electrical converter based on optimized pulse patterns

A method for operating an electrical converter including: determining an optimized pulse pattern from a fundamental voltage reference for the electrical converter, wherein the optimized pulse pattern is determined from a first lookup table and includes discrete voltage amplitude values changing at predefined switching instants; determining a harmonic content reference from the fundamental voltage reference based on a second lookup table, wherein the harmonic content reference is a harmonic current reference determined from the frequency spectrum of a current of the electrical converter or the harmonic content reference is a filtered voltage reference determined by applying a first order frequency filter to a voltage, which current or voltage is generated, when the optimized pulse pattern is applied to the electrical converter; determining a harmonic content error from the harmonic content reference by subtracting an estimated output voltage and/or estimated output current of the electrical converter from the harmonic content reference; modifying the optimized pulse pattern by timeshifting switching instants such that the fundamental voltage reference is tracked and the harmonic content error is corrected by the timeshifted switching instants; applying the modified optimized pulse pattern to semiconductor switches of the electrical converter.. . ... Abb Schweiz Ag

05/10/18 / #20180130622

Gas insulated switchgear with the use of insulating gases or fluids, and method of producing the same

In an embodiment, the present invention provides a gas insulated switchgear for medium- or high-voltage use, including: a closed housing of a switchgear compartment having insulating gases or fluids. The insulation gas includes sulfurhexaflouride (sf6). ... Abb Schweiz Ag

05/10/18 / #20180126557

Method for industrial robot commissioning, industrial robot system and control system using the same

Disclosed are systems and methods to provide a method for calibrating a touchscreen coordinate system of a touchscreen with an industrial robot coordinate system of an industrial robot for industrial robot commissioning and industrial robot system and control system using the same. In one form the systems and methods include attaching an end effector to the industrial robot; (a) moving the industrial robot in a compliant way until a stylus of the end effector touches a point on the touchscreen; (b) recording a position of the stylus of the end effector in the industrial robot coordinate system when it touches the point of the touchscreen; (c) recording a position of the touch point on the touchscreen in the touchscreen coordinate system; and calculating a relation between the industrial robot coordinate system and the touchscreen coordinate system based on the at least three positions of the end effector stylus and the at least three positions of the touch points.. ... Abb Schweiz Ag

05/10/18 / #20180126552

Method and controller system for controlling backlash

A method of controlling backlash of a first driven gear and a second driven gear mechanically connected in parallel with an actuator gear, and which first, second, and third gears form a gear train. The method includes a) obtaining a current position of the gear train, b) obtaining a current backlash value of the gear train from a data structure having a plurality of pairs of positions of the gear train and corresponding backlash value which have all been determined in an empirical manner for the actuator gear, c) determining a first backlash compensation for the first gear motor and a second backlash compensation for the second gear motor, wherein the first and second backlash compensations are equal and opposite values based on the current backlash value, and d) controlling the first and second gear motors based on the compensations.. ... Abb Schweiz Ag

05/03/18 / #20180123444

Method and device for damping voltage harmonics in a multilevel power converter

A method for reducing lower order harmonics of a multi-level power converter includes at least one phase leg including a plurality of chain-link connected cells each including a capacitor. The method includes, for each phase leg of the converter: obtaining a present reference voltage for use during a present half switching duration; dividing the half switching duration into a plurality of time samples; and at the beginning of each time sample: predicting the reference voltage waveform for the remainder of the half switching duration based on the obtained present reference voltage; predicting the leg output voltage waveform for the remainder of the present half switching duration for the case that no cell is inserted or bypassed in the leg during the time sample, and for the case that one cell is inserted or bypassed in the leg during the time sample; predicting the flux error at the end of the present half switching duration for each of the cases, based on the obtained present reference voltage, the predicted reference voltage waveform and the predicted leg output voltage waveforms; and determining whether to insert or bypass the cell, during the time sample, based on the predicted flux errors.. ... Abb Schweiz Ag

05/03/18 / #20180122768

Spring element for a power semiconductor module

The present invention relates to a spring element for a power semiconductor module, wherein the spring element includes a first part made from a first material and a second part made from a second material, the first material being different from the second material, wherein the first part comprises both a first contact portion having a first contact and a second contact portion having a second contact, wherein the first part comprises an electrically conductive path formed from the first contact portion to the second contact portion, and wherein the second part is adapted for exerting a spring force (fs) onto the first contact portion and the second contact portion for pressing the first contact to a first contact area of a power semiconductor module and the second contact to a second contact area of a power semiconductor module. Such a spring element may form a press contact in a power semiconductor module and may be less bulky compared to solutions in the prior art and may be formed cost-sparingly.. ... Abb Schweiz Ag

05/03/18 / #20180122602

Liner arrangement and a circuit breaker with a liner arrangement and method for protecting an insulator body

It is proposed a liner arrangement for fitting a tubular insulator body in a circuit breaker. The liner arrangement includes a planar, electric-arc resistant and heat resistant liner layer comprising a first edge portion and a second edge portion that is located opposite the first edge portion, wherein the first edge portion has a first contour extending in a direction transversally to a plane defined by the planar liner layer. ... Abb Schweiz Ag

05/03/18 / #20180117768

Determining a calibration position of a robot joint

An arrangement for determining the calibration position of a robot joint where the joint has a moveable joint element and a stationary joint element, where one of the joint elements has a holding structure and the other a force providing protrusion, a robot controller, a motor connected between the robot controller and the moveable joint element and a force receiving element adapted to form a kinematic coupling with the holding structure and the force providing protrusion, where the kinematic coupling has at least two areas of contact between the structure and the force receiving element and one area of contact between the force providing protrusion and the force receiving element, the force receiving element being fastenable to the holding structure for stretching out across a gap between the two robot joint elements for receiving a force from the force providing protrusion.. . ... Abb Schweiz Ag

05/03/18 / #20180117701

Method and apparatus of identifying welding seams of a welding object

A method and an apparatus of identifying welding seams of a welding object. The method includes identifying intersection lines between geometrical bodies of the welding object in a three-dimensional model for the welding object, based on geometry of the geometrical bodies to form a collection of welding seams for the welding object. ... Abb Schweiz Ag

04/19/18 / #20180110108

Control system with error detection

A control system for controlling a process. The control system includes primary and secondary module buses over which information may be transmitted between a controller and a plurality of i/o modules. ... Abb Schweiz Ag

04/19/18 / #20180109201

Active neutral point clamped converter control system and method

Unique systems, methods, techniques and apparatuses of an active neutral point clamped converter (anpc converter). One exemplary embodiment is a power conversion system comprising a grid-side converter, a dc link, a multi-phase anpc converter coupled to an electric machine, and an electronic control system. ... Abb Schweiz Ag

04/19/18 / #20180109109

Change of current return path in a bipole power transmission system

An arrangement for changing current return path in a bipole direct current power transmission system includes a converter station having an active and a passive converter connected in series between an active and a passive pole line via a first neutral bus, a metallic return transfer switch in an electrode line, a ground return transfer switch in a current redirecting path between the passive pole line and the neutral bus and a control unit which in case of change to the passive pole line for providing a return current path is configured to, upon control of power related to the active converter from steady-state to zero, close the ground return transfer switch and thereafter open the metallic return transfer switch, whereupon power related to the active converter may be controlled back to steady state.. . ... Abb Schweiz Ag

04/19/18 / #20180108789

Method for manufacturing an edge termination for a silicon carbide power semiconductor device

A method for manufacturing an edge termination structure for a silicon carbide power semiconductor device having a central region and an edge region is provided. The following manufacturing steps are performed: a) providing an n-doped silicon carbide substrate, b) epitaxially growing a silicon carbide n-doped drift layer on the substrate, which has a lower doping concentration than the substrate, c) creating at least one p-doped termination layer by implanting a second ion up to a maximum termination layer depth and annealing on the first main side, d) forming a doping reduction layer having a depth range, which doping reduction layer comprises at least one doping reduction region, wherein a depth of a doping concentration minimum of the doping reduction layer is greater than the maximum termination layer depth, wherein for the creation of each doping reduction region: implanting a first ion with an implantation energy in the drift layer at least in the edge region, wherein the first ion and the at least one implantation energy are chosen such that the doping reduction layer depth range is less than 10 μm, e) annealing the doping reduction layer, wherein step d) and e) are performed such that the doping concentration of the drift layer is reduced in the doping reduction layer.. ... Abb Schweiz Ag

04/19/18 / #20180108504

Medium voltage circuit breaker in subsea environment

In an embodiment, the present invention provides a medium voltage circuit breaker in high pressure subsea environment, including: a vacuum circuit breaker; and a drive in a pressure tight housing. For an electrical three-phase arrangement, one vacuum circuit breaker per phase is in arranged in a separate pole housing each, and the resulting three pole housings are mounted to a common base compartment, in which all the three drives for the three vacuum circuit breaker are arranged. ... Abb Schweiz Ag

04/19/18 / #20180106856

Method and device for testing a galvanic connection of a high-voltage condenser bushing assembly

A method for testing the quality of a galvanic connection between a first terminal and a conductive layer of a high-voltage condenser bushing assembly is provided. The method includes providing a capacitive test circuit. ... Abb Schweiz Ag

04/19/18 / #20180106849

Method and apparatus for detecting fault in a mixed configuration power transmission line

A method and an apparatus for fault detection in a mixed configuration power transmission line including a plurality of sections arranged between one end of the transmission line and the other end of the transmission line and including at least one overhead line section and at least one cable section are disclosed. Based on a comparison travelling wave voltage or current time derivatives at the one end and the other end of the power transmission line with selected threshold values, it is determined if there is a fault occurring in at least one cable section of the power transmission line. ... Abb Schweiz Ag

04/19/18 / #20180106761

Burner nozzle

In an embodiment, the present invention provides a burner nozzle for a flame ionization detector, the nozzle including: an output-side outlet for ejecting a gas mixture to be ignited into a combustion chamber; an input-side inlet for feeding a combustible gas and a gaseous analyte through a transport channel to the outlet; and a cut-out, provided in the burner nozzle, through which cut-out combustion air can pass from the combustion chamber into the gas mixture flowing out of the outlet.. . ... Abb Schweiz Ag

04/19/18 / #20180104817

Method for controlling an industrial robot by touch

A robot and method for controlling an industrial robot, which has a first robot arm, a second robot arm, a joint defining a kinematic pair between the first and second robot arms, an actuator for generating relative movement between the first and second robot arms, and a robot controller for controlling the movements of the actuator. The method includes the steps of: determining a presence of a first torque indication at the actuator to be interpreted as a first command to the robot controller; repeatedly obtaining an external torque value (τext) to obtain an external torque behaviour; comparing the external torque behaviour with the first torque indication; and executing a robot function corresponding to the first command upon detecting that the external torque behaviour corresponds to the first torque indication. ... Abb Schweiz Ag

04/12/18 / #20180102638

Fault current enhancement for energy resources with power electronic interface

The present invention is concerned with a fault current enhancement for triggering a protection device, such as a fuse or circuit breaker or protection relay used in protecting a distribution line of a power distribution network in an efficient and economical way. An induction machine (im) is operated in parallel with an energy source connected to the distribution line via a power electronics (pe) interface, to provide a fault current characteristic of the composite pe interface and im similar to that of a synchronous generator. ... Abb Schweiz Ag

04/12/18 / #20180102205

Electrical bushing

An electrical bushing including an electrically insulating shell having a central longitudinal through hole and a first longitudinal end configured to be at a top of the bushing and a second longitudinal end configured to be at a bottom of the bushing. The bushing is configured for accommodating an electrical conductor positioned through the central longitudinal through hole of the shell. ... Abb Schweiz Ag

04/12/18 / #20180100777

Device for measuring the pressure of a fluid flowing through a pipeline

In an embodiment, the present invention provides a device for measuring the pressure p of a fluid flowing through a pipeline, including: at least one primary sensor arranged on an outer periphery of the pipeline for measuring a primary physical measured variable which is dependent on the pressure p, the absolute value of the pressure p being obtainable by offsetting said primary physical measured variable against at least one calibration datum, the at least one calibration datum relating to the geometry and/or to at least one material property of the pipeline; and a calibration datum determining unit and an evaluation unit for determining the pressure p from the primary physical measured variable in conjunction with the calibration datum. The calibration datum determining unit includes a measuring pipe which can be fluidically connected to the pipeline, which differs from the rest of the pipeline in material and/or in cross-sectional geometry.. ... Abb Schweiz Ag

04/05/18 / #20180097450

Hybrid high voltage direct current converter station and operation method therefor

An objective of the invention to provide a hybrid converter station for hvdc system and the method operating the same. The hybrid rectifier station for high voltage direct current system includes: at least one ac bus; at least one line commutated converter configured to convert a portion of ac power supplied from the at least one ac bus to dc power transmitted on hvdc transmission line of the high voltage direct current system thereby generating reactive power demand; and at least one voltage source converter; wherein: the at least one line commutated converter and the at least one voltage source converter are coupled in parallel to the hvdc transmission line; and the at least one voltage source converter is configured to compensate the reactive power demand via the parallel coupling while converting another portion of the ac power supplied from the at least one ac bus to dc power transmitted on the hvdc transmission line. ... Abb Schweiz Ag

04/05/18 / #20180097367

Photovoltaic apparatus

Photovoltaic apparatus comprising an auxiliary power supply arrangement which is adapted to feed an electric load of the photovoltaic apparatus itself and comprises: first electronic means connected with a dc power source and comprising a first electronic unit adapted to receive a first feeding voltage and provide a first output voltage of dc type; second electronic means connected with an ac power source and comprising a second electronic unit adapted to receive a second feeding voltage and provide a second output voltage of dc type; and third electronic means connected with the first and second electronic means and adapted to reversibly switch among different operation states based on the status of the electric power sources.. . ... Abb Schweiz Ag

04/05/18 / #20180097353

Differential fault detection system

Unique systems, methods, techniques and apparatuses of a fault detection system are disclosed herein. One exemplary embodiment is a fault detection system comprising a protected device including a dc bus structured to receive ac power and provide ac power; a dc bus sensor structured to measure an electrical characteristic of the dc bus; at least one input sensor structured to measure an electrical characteristic of the ac power received by the protected device; at least one output sensor structured to measure the electrical characteristic of the ac power provided by the protected device; and a monitoring device configured to receive measurements from the dc bus sensor, at least one input sensor, at least one output sensor and determine the existence of a fault condition which originates within the protected device using the measurements of the dc bus sensor, at least one input sensor, and at least one output sensor.. ... Abb Schweiz Ag

04/05/18 / #20180096808

Permanent short-circuit device

A permanent short-circuit device includes an enclosure with a first and second fixed electrically conducting body, each connected to a respective conductor leaving the enclosure, the first and second bodies body each having a first and a second surface on opposite sides of the respective body, where the first surface of the first body faces the first surface of the second body and is separated therefrom by a gap with width d and the second surface of the first body is provided with explosives connected to a detonator for deforming the first body towards the first surface of the second body such that the first surface of the first body crosses the gap and galvanically connects to the first surface of the second body.. . ... Abb Schweiz Ag

04/05/18 / #20180095041

Optical sensing system for determining hydrogen partial pressure

An optical sensing system for sensing hydrogen in a fluid comprising a first optical sensor comprising a first optical fiber, wherein an end portion of the first optical fiber is coated with a first hydrogen-sensitive multilayer on an end surface perpendicular to a longitudinal axis of the first optical fiber, the first multilayer being adapted to change its optical properties dependent on a hydrogen partial pressure in the fluid and dependent on a temperature of the fluid, with a known first characteristic; a second optical sensor comprising a second optical fiber, wherein an end portion of the second optical fiber is coated with a second hydrogen-sensitive multilayer on an end surface perpendicular to the longitudinal axis of the second optical fiber, the second multilayer being adapted to change its optical properties dependent on the hydrogen partial pressure in the fluid and dependent on a temperature of the fluid, with a known second characteristic which is different from the first characteristic; at least one light source adapted for coupling light into the first optical fiber and the second optical fiber, at least one light detector adapted for detecting light reflected by the first and second multilayer, a control unit adapted for calculating the hydrogen partial pressure in the fluid by using the first characteristic and the second characteristic and an output signal of the at least one light detector.. . ... Abb Schweiz Ag

04/05/18 / #20180095031

Measurement of hydrocarbon fuel gas composition and properties from tunable diode laser absorption spectrometry

A tunable diode laser absorption spectrometer and a method of processing absorption spectra is used to measure concentrations of selected fuel gas components and calculate several fuel gas parameters, including heating value, relative density, compressibility, theoretical hydrocarbon liquid content and wobbe index. In the described incarnation, a tunable laser diode directs near-infrared light into an optical cavity through a sample of fuel gas. ... Abb Schweiz Ag

03/29/18 / #20180092235

Rail-mounted control system with improved mounting

A control system includes a module assembly with a base. The base can be configured for engagement with at least one module having electronic circuitry disposed therein or other electronic device. ... Abb Schweiz Ag

03/29/18 / #20180091931

A communication network, a power converter cabinet, and a method therefore

A communication network and a power converter cabinet including a control unit, a power switch, a sensor and wherein the first communication point is connected to the control unit inside the power converter cabinet, and the second communication point is connected to the power switch, and a sensor inside the power converter cabinet. The communication network includes: a first antenna configured to wirelessly transmit/receive in the mm-wave frequency band, and a second antenna configured to receive/transmit wirelessly in the mm-wave frequency band, wherein the first and second communication points are configured to set up a communication link with multiple propagation paths, to send data between different active devices inside the power converter cabinet. ... Abb Schweiz Ag

03/29/18 / #20180091038

Voltage source converter with improved operation

A voltage source converter has director valve phase legs in parallel with waveshaper phase legs between two dc terminals. The director valve and waveshaper phase legs include upper and lower phase arms alternately operated to form waveshapes on ac terminals of the converter, thereby allowing a number of waveshaper phase arms to be available for use for other purposes. ... Abb Schweiz Ag

03/29/18 / #20180090572

Thyristor with improved plasma spreading

There is provided a thyristor having emitter shorts, wherein in an orthogonal projection onto a plane parallel to a first main side, a contact area covered by an electrical contact of a first electrode layer with a first emitter layer and the emitter shorts includes areas in the shape of lanes, in which an area coverage of the emitter shorts is less than the area coverage of emitter shorts in the remaining area of the contact area, wherein the area coverage of the emitter shorts in a specific area is the area covered by the emitter shorts in that specific area relative to the specific area. The thyristor of the invention exhibits a fast turn-on process even without complicated amplifying gale structure.. ... Abb Schweiz Ag

03/29/18 / #20180090441

Power semiconductor module

The present invention relates to a power semiconductor module, comprising at least two power semiconductor devices, wherein the at least two power semiconductor devices comprise at least one power semiconductor transistor and at least one power semiconductor diode, wherein at least a first substrate is provided for carrying the power semiconductor transistor in a first plane, the first plane lying parallel to the plane of the substrate, wherein the power semiconductor diode is provided in a second plane, wherein the first plane is positioned between the substrate and the second plane in a direction normal to the first plane and wherein the first plane is spaced apart from the second plane in a direction normal to the first plane. The first plane is spaced apart from the second plane in a direction normal to the first plane, whereby the first substrate is based on a direct bonded copper substrate and the first substrate is a direct-bonded copper substrate for carrying the transistor, on which first substrate a layer of a printed circuit board is provided for carrying the diode. ... Abb Schweiz Ag

03/29/18 / #20180090401

Semiconductor device

A semiconductor device comprises two electrodes with opposite faces; a semiconductor wafer sandwiched between the two electrodes; an outer insulating ring attached to the two electrodes and surrounding the semiconductor wafer; a middle insulating ring inside the outer insulating ring and surrounding the semiconductor wafer, whereby the middle insulating ring is made of a plastics material; and an inner insulating ring inside the middle insulating ring, whereby the inner insulating ring is made of ceramics and/or glass material. Either the middle insulating ring or the inner insulating ring has a tongue and the other thereof has a groove such that the tongue fits into the groove for their rotational alignment. ... Abb Schweiz Ag

03/29/18 / #20180089965

Distribution of audible notifications in a control room

A technology for delivering an audible notification from a process control system in a control room environment, where the delivery is made by one or more first speakers having a first coverage for audible notifications and one or more second speakers having a second coverage for audible notifications. A determination if the location of an operator is covered by the first coverage is made. ... Abb Schweiz Ag

03/29/18 / #20180087489

Method for windmill farm monitoring

A method for monitoring turbines of a windmill farm includes: providing a global nominal dataset containing frame data of the turbines of the windmill farm and continuous reference monitoring data of the turbines for a first period in a fault free state, the reference monitoring data including at least two same monitoring variables for each turbine; building a nominal global model based on the global nominal dataset which describes the relationship in between the windmill turbines and clustering the turbines according thereto; assigning the data of the global nominal dataset to respective nominal local datasets according to the clustering; and building a nominal local model for the turbines of each cluster based on the respective assigned nominal local datasets, the nominal local model being built such that a nonconformity index is provideable which indicates a degree of nonconformity between data projected on the local model and the model itself.. . ... Abb Schweiz Ag

03/29/18 / #20180085815

Method for loading blanks to a press and system

A method for loading blanks from a stack of blanks to a head press of a stamping press line is provided. The method may include: providing a loading robot; providing one or more separating robots configured to separate one blank at the top of a stack of blanks from the underlying blanks; providing a stack of blanks and applying separating robots to at least one side of the stack; recognizing the position of the stack of blanks using the position of the separating robots; picking up the blank located at the top of the stack of blanks with the loading robot, using the recognized position of the stack; loading the blank to the head press of the stamping press line using the loading robot. ... Abb Schweiz Ag

03/22/18 / #20180080958

Assembly of gas-tight compartment and optical voltage sensor

. . The invention relates to an assembly of a gas-tight compartment and an optical voltage sensor that further comprises a module. The module comprises an electro-optic crystal and electrodes, wherein the electro-optic crystal is the only element of the module to mechanically connect the two electrodes and to bridge the potentials of the two electrodes. ... Abb Schweiz Ag

03/22/18 / #20180078944

Method for determining a lifting angle and method for positioning a grinding mill

The purpose of the invention to provide a method for determining a lifting angle of a charge inside a grinding mill at a specific point in time and a method for positioning a grinding mill which is more accurate. Method for determining a lifting angle of a charge inside a mill body of a grinding mill being rotatable through a drive train, the method comprises the following steps of rotating the mill body; determining a reference lifting angle and a corresponding reference driving torque of the drive train at a reference point in time; calculating a fill factor for the reference point in time based on the reference lifting angle and the reference driving torque; determining a driving torque of the drive train; and calculating the lifting angle based on the driving torque and the fill factor.. ... Abb Schweiz Ag

03/15/18 / #20180075990

Circuit breaker system with heating radiator and particle trap

. . A circuit breaker system has an sf6 tank having a wall, and an sf6 heating system. The sf6 heating system includes a heater disposed externally of the tank, and a radiator disposed on the wall inside the sf6 tank. ... Abb Schweiz Ag

03/15/18 / #20180075963

Traction transformer

A transformer is provided, which comprises an enclosure (10) with a first and second cover (12, 14) arranged at opposite ends of the enclosure (10), the enclosure having an enclosed volume (11) filled with isolation material (20) and comprising at least one channel (25, 26) which extends through the enclosure (10) from the first cover (12) to the second cover (14). The interior of each channel (25, 26) is separated from the enclosed volume (11), and the core (30) is provided outside of the enclosed volume (11) and comprises a leg (32, 34) and a yoke (40, 42). ... Abb Schweiz Ag

03/15/18 / #20180075953

Disconnector device for a surge arrester and a protection assembly comprising a surge arrester connected to such a disconnector device

This disclosure concerns a disconnector device for a surge arrester. The disconnector device comprises a housing encompassing a cavity and a disconnector unit provided inside the cavity. ... Abb Schweiz Ag

03/15/18 / #20180073486

Wind farm inertial response

The present invention is concerned with an operation of a wind farm with a plurality of wind turbines in view of a dynamic frequency response. According to the invention, dynamic frequency support and power production for all wind turbines in a wind farm are handled concurrently in a single optimization step and taking into account wake effects within the wind farm as well as optional wind forecast information. ... Abb Schweiz Ag

03/15/18 / #20180073196

Determination of cd and/or md variations from scanning measurements of a sheet of material

Cd variations and/or md variations in scan measurements are determined from spectral components of power spectra of scan measurements taken using two or more scanning speeds. Dominant spectral components having the same spatial frequencies identify cd variations and dominant spectral components having the same temporal frequencies identify md variations. ... Abb Schweiz Ag

03/15/18 / #20180071912

Rotary supplemental axis for robot

A robotic system and method that includes a robot having one or more axes of movement and which can be coupled to a supplemental axis unit that is structured to rotatably displace the robot about a supplemental axis. The robot can be coupled to a rotatable wheel portion of a table unit of the supplemental axis unit. ... Abb Schweiz Ag

03/15/18 / #20180071808

A stacking line system, and a method for stacking blanks which are outputted from a blanking shear or press

Included are a transfer unit for receiving blanks outputted from the blanking shear or press; at least one stacking support for stacking blanks thereon; one or more stacking robots to pick blanks from the transfer unit and place them on the stacking support, and at least one handling robot configured to position one or more centering pins for assisting the placement of the blanks on the stacking support.. . ... Abb Schweiz Ag

03/08/18 / #20180069429

Bi-directional battery converter and balancer for an electric energy storage of a power supply system

A power supply system for supplying a load with electric energy from an electrical network can include at least one power supply module. The power supply module can include a dc link to be supplied from the electrical network; and an inverter connected to the dc link and configured to convert a dc voltage from the dc link into an ac voltage to be supplied to the load. ... Abb Schweiz Ag

03/08/18 / #20180069391

Travelling wave protection of a transmission line

A mechanism for travelling wave protection of a transmission line and a method for acquiring information of both voltage and current polarities from two ends of a transmission line. The method includes comparing the voltage and current polarities of both ends of the transmission line to each other. ... Abb Schweiz Ag

03/08/18 / #20180069382

Modular electrical devices and methods for assembling and mounting the same

An electrical distribution apparatus has a bus bar assembly, a protective shroud, and electrical devices mounted therein. The electrical devices have a main housing, a line side housing for line side connectors and jaws, a securement portion for mounting the electrical device in a back pan of the electrical distribution apparatus. ... Abb Schweiz Ag

03/08/18 / #20180068758

Inorganic electrical insulation material

An electrically insulating inorganic sheet including at least 90% by weight inorganic particles, and a binder which binds the particles together to form the sheet, for use as solid insulation in an electrical device, e.g. A power transformer.. ... Abb Schweiz Ag

03/08/18 / #20180067147

Interferometric voltage sensor with error compensation

In order to measure a voltage, an electro-optic element is placed in an electrical field generated by the voltage, and light is passed from a light source through a faraday rotator and the electro-optic element onto a reflector and from there back through the electro-optic element and the faraday rotator, thereby generating a voltage-dependent phase shift between two polarizations of the light. The interference contrast as well as a principal value of the total phase shift between said polarizations are measured and converted to a complex value having an absolute value equal to the contrast and a phase equal to the principal value. ... Abb Schweiz Ag

03/08/18 / #20180066932

Closed-loop interferometric sensor using loop gain for determining interference contrast

In order to measure the contrast of interference in an interference-based, closed-loop, phase-modulating optical sensor device, the gain of the feedback loop in a feedback controller (12) is evaluated. This gain is found to be a measure for the contrast. ... Abb Schweiz Ag

03/01/18 / #20180062531

Hybrid control method for an electrical converter

An electrical converter comprises at least one of an active rectifier and an inverter interconnecting an electrical source with an electrical load. A method for controlling an electrical converter comprises: receiving at least one estimated control variable, which is estimated from measurement values measured in the electrical converter; receiving at least one outer loop control variable provided by an outer control loop, the at least one outer loop control variable providing a desired steady-state operation point of the electrical converter; determining a control region based on a control error, which is a difference between the at least one estimated control variable and the at least one outer loop control variable, wherein the control region is defined by one or more intervals of one or more control variables; selecting control parameters based on the control region, wherein, when the control error is in an inner control region, first control parameters are selected, and, when the control error is outside the inner control region but inside an outer control region, second control parameters are selected; switching, based on the control error, between two and more control methods, which differ in control parameters, by predicting at least one reference control value based on a solution of a physical model of the electrical converter, which comprises the selected control parameters, the physical model being based on differential equations modelling the at least one estimated control variable and the solution being based on a constraint minimizing a difference between the at least one estimated control variable and the at least one outer loop control variable; and determining switching states of the electrical converter based on the reference control value.. ... Abb Schweiz Ag

03/01/18 / #20180061588

Combined discharging and grounding device for a high voltage power converter

Combined high voltage discharging and grounding device with a discharging unit with a first electric contact and a first counter-contact as well as a grounding unit with a second electric contact and a second counter contact. The first electric contact and the second electric contact are provided on a movable member which is movable by way of a drive along a path of movement from an open position to a close position. ... Abb Schweiz Ag

03/01/18 / #20180059188

Method for determining the operating status of a spring charging motor for a lv or mv switching apparatus and a diagnostic system implementing said method

A method for determining the operating status of a spring charging motor of a lv or mv switching apparatus. The method comprise: acquiring a detection signal (id) indicative of the behavior of a driving current (imot), which feeds the spring charging motor during an operation cycle of the spring charging motor; processing the detection signal (id) to calculate a steady-state detection signal (idss) indicative of the behaviour of the driving current (imot) during a steady-state time interval (tss) comprised in the operation cycle of the spring charging motor; processing the steady-state detection signal (idss) to calculate data (ds) indicative of hf and lf spectral components of the driving current (imot) during the steady-state time interval; processing the data (ds) indicative of the hf and lf spectral components to calculate first and second harmonic distortion values (thdlf, thdhf), which are indicative of the total harmonic distortion of the lf and hf spectral components, respectively; processing the first and second harmonic distortion values to calculate first and second output data (o1, o2), which are indicative of the variations of the first and second harmonic distortion values with respect to corresponding first and second reference values, respectively.. ... Abb Schweiz Ag

03/01/18 / #20180059187

Localization, mapping and haptic feedback for inspection of a confined space in machinery

A modular device is used to inspect a confined space in a machine. The entire inspection coverage area and corresponding status are mapped so that the inspection location and associated data are graphically visualized. ... Abb Schweiz Ag

03/01/18 / #20180056515

3d segmentation for robotic applications

A robotic system includes a robot having an associated workspace; a vision sensor constructed to obtain a 3d image of a robot scene including a workpiece located in the workspace; and a control system communicatively coupled to the vision sensor and to the robot. The control system is configured to execute program instructions to filter the image by segmenting the image into a first image portion containing substantially only a region of interest within the robot scene, and a second image portion containing the balance of the robot scene outside the region of interest; and by storing image data associated with the first image portion. ... Abb Schweiz Ag

02/22/18 / #20180054144

Method and device for damping voltage harmonics in a multilevel power converter

A method for reducing lower order harmonics of a power converter includes, for each phase leg of the converter: obtaining a voltage reference for the phase leg; for a present sample, obtaining a flux error of the output voltage of the leg; dividing the first sample flux error by a time period to obtain an average voltage error over said time period; subtracting an obtained processed average voltage error, based on the average voltage error, from the voltage reference to obtain a modified voltage reference for the phase leg; and providing the modified voltage reference to a modulation unit of the converter for controlling the phase leg.. . ... Abb Schweiz Ag

02/22/18 / #20180054114

Electromagnetic shield for use in a power system

An electromagnetic shield including a base portion and opposing recess walls extending from the base portion at an angle with respect to a plane in which the base portion extends, so as to, together with the base portion, define a recess. At least one recess wall may be arranged such that it has a distal edge with respect to the base portion, wherein the distal edge includes a cylindrical portion. ... Abb Schweiz Ag

02/22/18 / #20180054112

Model predictive damping of oscillations in an electrical converter system

A method for controlling an electrical controller system (10), the method comprising, determining a reference output (ω*m) and an estimated output (ωm) of the electrical converter system (10) based on measurements in the electrical converter system (10); determining an optimized pulse pattern (uin by selecting from a table of precalculated optimized pulse patterns, which is chosen based on the reference output (ω*m) and the estimated output (ωm), a pulse pattern comprising a sequence of switching instants (ƒ) applied to the electrical converter system (10); determining a resonant oscillation (ψ0,h) in the electrical converter system (10), whereby the resonant oscillation (ψ0*) is composed of an electrical machine (16) and a lc fiber (14) of the electrical converter system (10); determining a sequence of future states of the electrical converter system (10) by solving a mathematical model of the electrical converter system (10) subject to optimizing a cost function and subject to a constraint that a modified pulse pattern (ui) is applied to the electrical converter system (10), which modified pulse pattern (ui) comprises time shifted switching instants with respect to the optimized pulse pattern (ui,n), wherein the cost function comprises a term compensating the resonant oscillation (ψo,h) with a pulse response oscillation caused by the time shifted switching instants of the modified pulse pattern (ui) and wherein the mathematical model is constrained such that the switching instants of the modified pulse pattern (ui) have the same order as the switching instants of the optimized pulse pattern (ui,n), applying the modified pulse pattern (ui) to the electrical converter system (10).. . ... Abb Schweiz Ag

02/22/18 / #20180054084

Power installation with ups

The present application contemplates a power installation including an uninterruptible power supply system and a user installation, wherein the user installation includes a load, at least one ac power source, at least one secondary power supply, at least one controllable hardware component, and a system protective earth, the uninterruptible power supply system includes—at least one uninterruptible power supply module, and a control device for controlling the uninterruptible power supply system based on at least one system parameter of the uninterruptible power supply system, wherein the at least one uninterruptible power supply system is connected between the at least one ac power source, the at least one secondary power supply, and the load, the power installation further includes at least one installation control assembly including an assembly controller, and at least one measurement device connected to the assembly controller, wherein the installation control assembly is galvanically referenced to system protective earth, and the assembly controller performs a control of the uninterruptible power supply system and the at least one controllable hardware component based on measurement signals received from the at least one measurement device.. . ... Abb Schweiz Ag

02/22/18 / #20180054060

Power transfer between phases in a transformer

An ac power transformer includes primary and secondary windings for at least a first ac phase and a second ac phase, and a core for said at least first and second phases. The transformer further includes a control unit for transferring power from the first phase to the second phase via magnetic coupling in the core such that the sum of the phase vectors of all of the at least first and second phases is substantially zero.. ... Abb Schweiz Ag

02/22/18 / #20180054055

Control of a microgrid

A control method performed in a microgrid. The microgrid includes at least one electrical power source and/or configured for injecting electrical power into the microgrid, a first point of common coupling (pcc) configured for allowing a first power flow between the microgrid and a first power grid, and a second pcc configured for allowing a second power flow between the microgrid and a second power grid. ... Abb Schweiz Ag

02/22/18 / #20180052206

Method and system for determining a synchronous machine fault condition

A method and system of determining an electro-mechanical fault condition in a synchronous machine having a stator, a rotor, and exciter. The method includes: a) obtaining an exciter current signal which is a measurement of an exciter current through stationary windings of the exciter, b) transforming the exciter current signal to obtain an exciter current frequency spectrum, and c) determining whether an electro-mechanical fault condition is present, and a type of the electro-mechanical fault condition, based on harmonic content related to the frequency of the stator, of the exciter current frequency spectrum.. ... Abb Schweiz Ag

02/15/18 / #20180048457

Method, system and device for clock synchronization over time-varying and lossy networks

. . The present invention is directed towards a method, a system, and a device which allow an improved synchronization of a system-wide timing information over a network. Hence, slave clocks can be synchronized to a high quality clock, such as a master clock.. ... Abb Schweiz Ag

02/15/18 / #20180048146

Photovoltaic string reverse polarity detection

One or more techniques and/or systems are provided for detecting reverse polarity of a photovoltaic system. A fuse holder may comprise a fuse holder body configured to receive a fuse used to protect against excessive current from a photovoltaic string of the photovoltaic system, such as current from a short circuit due to the photovoltaic string being installed backwards and having a reverse polarity. ... Abb Schweiz Ag

02/15/18 / #20180048137

Arc fault detection arrangement for a dc electric bus

An arc fault detection arrangement for a dc electric bus, the dc electric bus having one or more electric lines adapted to electrically connect a source section and a load section of an electric apparatus, the arc fault detection arrangement including an arc fault detector adapted to receive and process detection signals indicative of ac currents flowing along the electric lines. The arc fault detection arrangement comprises a current sensing device including: primary winding means including a first primary winding conductors and a second primary winding conductors adapted to be electrically connected in series with source portions and load portions of corresponding first and second line conductors of the electric lines, so that common-mode electric currents flowing along the first and second primary winding conductors generate magnetic fluxes with opposite directions; secondary winding means magnetically coupleable with the first primary winding means, the secondary winding means comprising a first secondary winding conductor electrically connected with the arc fault detector to provide the detection signals to the arc fault detector.. ... Abb Schweiz Ag

02/15/18 / #20180047652

Power semiconductor device and method for manufacturing such a power semiconductor device

A power semiconductor device is provided comprising a wafer, wherein in a termination region of the device a passivation layer structure is formed at least on a portion of a surface of the wafer and the passivation layer structure comprises in an order from the surface of the wafer in a direction away from the wafer a semi insulating layer, a silicon nitride layer, an undoped silicate glass layer and an organic dielectric layer. The silicon nitride layer has a layer thickness of at least 0.5 μm. ... Abb Schweiz Ag

02/15/18 / #20180047525

Sf6 insulated circuit breaker system with thermal capacitor

A sulfur hexafluoride (sf6) insulated circuit breaker system has a tank constructed to hold a quantity of sf6; a circuit breaker having contacts insulated by the sf6; a heater operative to supply heat to the sf6; and a thermal capacitor in conductive engagement with the tank, and operative to store heat energy and constructed to conduct the heat energy to the sf6 in the tank. A thermal energy storage system for a sulfur hexafluoride (sf6) insulated circuit breaker system having a tank storing a quantity of sf6 includes a thermal capacitor operative to store heat energy and constructed to engage the tank and conduct the heat energy to the sf6 in the tank.. ... Abb Schweiz Ag

02/08/18 / #20180041163

Photovoltaic string combiner with modular platform architecture

One or more techniques and/or systems are provided for managing a photovoltaic arrangement. A photovoltaic string combiner may be configured to combine a set of photovoltaic strings of the photovoltaic arrangement. ... Abb Schweiz Ag

02/08/18 / #20180041127

Gate drive systems and methods using wide bandgap devices

Unique systems, methods, techniques and apparatuses of a gate drive system are disclosed. One exemplary embodiment is a drive circuit electrically coupled to a main switching device comprising a first inverter, a first inverter controller, an air core transformer, at least one rectifier, at least two smoothing capacitors, a current buffer stage, and a detection circuit. ... Abb Schweiz Ag

02/08/18 / #20180041021

Switching system for breaking a current and method of performing a current breaking operation

A switching system for breaking a current, including a contact arrangement having a first and second terminals, a resonance circuit connectable across the contact arrangement, in the closed state the first switch enables current to flow through the resonance circuit in a first flow direction and into the contact arrangement in a direction opposite to a contact arrangement arc current flow direction. A second switch connected to the resonance circuit and to the second terminal. ... Abb Schweiz Ag

02/08/18 / #20180040538

Power electronics module

A power electronics module comprises a first liquid cooler comprising a cooling channel for receiving a cooling liquid, wherein the first liquid cooler comprises a metal body providing a first terminal of the power electronics module; a second liquid cooler comprising a cooling channel for receiving a cooling liquid, wherein the second liquid cooler comprises a metal body providing a second terminal of the power electronics module; a plurality of semiconductor chips arranged between the first liquid cooler and the second liquid cooler, such that a first electrode of each semiconductor chip is bonded to the first liquid cooler, such that the first electrode is in electrical contact with the first liquid cooler, and an opposite second electrode of each semiconductor chip is in electrical contact with the second liquid cooler; and an insulating encapsulation, formed by molding the first liquid cooler, the second liquid cooler and the plurality of semiconductor chips into an insulation material, such that the first liquid cooler, the second liquid cooler and the plurality of semiconductor chips are at least partially embedded onto the insulation material.. . ... Abb Schweiz Ag

02/08/18 / #20180040442

Device for interrupting non-short circuit currents only, in particular disconnector or earthing switch

The present invention relates to a device for interrupting non-short circuit currents only, and in particular relates to a disconnector, more particularly high voltage disconnector, or to an earthing switch, more particularly make-proof earthing switch, and further relates to a low voltage circuit breaker. The device comprises at least two contacts movable in relation to each other between a closed state and an open state and defining an arcing region, in which an arc is generated during a current interrupting operation and in which an arc-quenching medium comprising an organofluorine compound is present. ... Abb Schweiz Ag

02/08/18 / #20180039261

Method of monitoring a modular process plant complex with a plurality of interconnected process modules

A system for monitoring a modular process plant complex having a plurality of interconnected process modules each of which includes a plurality of interconnected physical control objects. The physical control objects and their interconnections inside a physical process module are displayed together with associated control parameters as stylized control objects on an operator display screen with four different zooming levels: a first zooming level displaying diagrams of aggregated key performance indicators of the plant complex; a second zooming level displaying diagrams of the key performance indicators; a third zooming level displaying process modules associated with a plant area of the second zooming level; and a fourth zooming level displaying one or more physical control objects included in a process module of the third zooming level together with the associated control parameters and interconnections as stylized control objects on the operator screen display.. ... Abb Schweiz Ag

02/08/18 / #20180038681

Sensor system and method for characterizing a stack of wet paint layers

A method of characterizing a wet paint layer stack of a painted body by individual parameters of the wet paint layers, based on fitting to a physical model, is provided. The method includes: emitting a thz radiation signal towards the painted body such that the thz radiation interacts with the wet paint layer stack; detecting a response signal being the detected thz radiation signal having interacted with the wet paint layer stack; determining model parameters of the physical model by optimizing the model parameters such that a predicted response signal of the physical model is fitted to the detected response signal, at least some of the model parameters being indicative of optical properties of the wet paint layers and of a wet paint layer thickness; and determining, from the determined model parameters, the individual paint layer parameters of at least one of the wet paint layers.. ... Abb Schweiz Ag

02/01/18 / #20180034396

Systems and methods concerning exciterless synchronous machines

A synchronous machine and related systems include a stator and rotor separated by an air gap. The rotor includes a rotating dc power supply coupled to exciter windings disposed adjacent the air gap. ... Abb Schweiz Ag

02/01/18 / #20180034265

Method for protection in a mixed power transmission line

A method is provided for protection in a mixed power transmission line by controlling a switching device connected thereto through an intelligent electronic device (ied). The mixed line has two or more sections with at least one overhead section (10a) and at least one underground section (10b), wherein every two consecutive sections are connected at a junction (10c). ... Abb Schweiz Ag

02/01/18 / #20180033566

Switch cover

A control system for an electrical switching apparatus adapted to be installed in a medium voltage or high voltage electrical circuit. The control system includes at least a first module with first control means which are adapted to execute a first control logic, and a second module with second control means which are adapted to execute a second control logic; and at least one communication bus. A cover for an electric switch assembly is disclosed in the present application. The cover includes connecting features that permit connection to a housing for the switch assembly in at least two locations. ... Abb Schweiz Ag

02/01/18 / #20180029233

Method for avoiding collisions between two robots

A method for avoiding collisions between two robots providing first movement information related to a first robot movement; determining for a plurality of second robot movements whether they involve a risk for collision between the first and second robots; and executing one of the second robot movements. Information about a movement of one robot enables a robot controller of another robot with an overlapping work area to select among available robot movements an appropriate one that does not involve a risk for collision between the two robots.. ... Abb Schweiz Ag

01/25/18 / #20180026623

Solid state switch system

A solid state switch for connecting and disconnecting an electrical device has at least one fet-type device and at least one thyristor-type device coupled in parallel to the at least one fet-type device. A gate driver is operative to send gate drive signals to the at least one fet-type device and to the at least one thyristor-type device for providing current to the electrical device. ... Abb Schweiz Ag

01/25/18 / #20180026570

Solid state switch system

A solid state switch has at least one fet-type device and at least one thyristor-type device coupled in parallel to the at least one fet-type device. The at least one fet-type device is constructed with a first power loss profile based on a rated current of an electrical device; and the at least one thyristor-type device is constructed with a second power loss profile based on a surge current associated with the electrical device.. ... Abb Schweiz Ag

01/25/18 / #20180026519

Multilevel converter with energy storage

A multilevel power converter includes at least one phase leg. The phase leg includes a plurality of cascaded chain link connected cells, each cell including a capacitor and two semiconductor switches in series, each with an anti-parallel connected diode. ... Abb Schweiz Ag

01/25/18 / #20180026434

Excitation system

A excitation system and a generator arrangement with the excitation system is proposed. The excitation system comprises a converter adapted for converting an ac current to a dc current, a switching device for short circuiting an ac input of the converter, and an arc detection device for detecting an arc fault in the excitation system and for actuating the switching device upon detecting the arc fault. ... Abb Schweiz Ag

01/25/18 / #20180024183

Method and apparatus for detection of power system disturbance within a digital substation

An objective of the application is to provide a method for detecting a disturbance in a power system within a digital substation and an apparatus using the same. The method includes: sensing electrical parameters at an end of a transmission line; sampling the sensed electrical parameters; extracting traveling-wave information from high frequency component of the samples using a signal processing method; and if the extracted traveling-wave information indicating occurrence of the disturbance, transmitting the extracted traveling-wave information to an intelligent electronic device of the digital substation from a merging unit or non-conventional instrument transformer of the digital substation. ... Abb Schweiz Ag

01/25/18 / #20180021948

Electric fluidic rotary joint actuator with pump

There is set forth herein an articulated arm, the articulated arm comprising a first rigid link assembly and a second rigid link assembly. The articulated arm can be configured so that the second rigid link assembly rotates in relation to the first link assembly about a rotary axis. ... Abb Schweiz Ag

01/18/18 / #20180020562

Arrangement for subsea housing of electric components and manufacturing of the same

. . A pressure compensated subsea arrangement for housing of electric components. The arrangement includes a pressure compensated housing. ... Abb Schweiz Ag

01/11/18 / #20180012773

Power semiconductor device with thick top-metal-design and method for manufacturing such power semiconductor device

The present application contemplates a method for manufacturing a power semiconductor device. The method comprises: providing a wafer of a first conductivity type, the wafer having a first main side and a second main side opposite to the first main side, and the wafer including an active cell area, which extends from the first main side to the second main side, in a central part of the wafer and a termination area surrounding the active cell area in an orthogonal projection onto a plane parallel to the first main side; forming a metallization layer on the first main side to electrically contact the wafer in the active cell area, wherein the surface of the metallization layer, which faces away from the wafer, defines a first plane parallel to the first main side; forming an isolation layer on the first main side in the termination area, wherein the surface of the isolation layer facing away from the wafer defines a second plane parallel to the first main side; after the step of forming the metallization layer and after the step of forming the isolation layer, mounting the wafer with its first main side to a flat surface of a chuck; and thereafter thinning the wafer from its second main side by grinding while pressing the second main side of the wafer onto a grinding wheel by applying a pressure between the chuck and the grinding wheel, wherein the first plane is further away from the wafer than a third plane, which is parallel to the second plane and arranged at a distance of 1 μm from the second plane in a direction towards the wafer.. ... Abb Schweiz Ag

01/11/18 / #20180012711

A method for controlled energising of a transformer

In aspects, the present invention provides a method for controlled energizing of a transformer (150) being connected to a first electrical subsystem (110) through a first circuit breaker (140). The method comprises acquiring electrical current waveform in a first phase of the transformer during a closing operation of the first circuit breaker at an instance for switching determined by a controller (130), determining a first peak (310) in the current in the first phase within a first predetermined time window (tpw), calculating a first correction factor for adjusting the instance for switching in the first phase, and adjusting the instance for switching based on the calculated first correction factor for performing a next controlled energization at the adjusted instance of switching in the first phase.. ... Abb Schweiz Ag

01/11/18 / #20180012043

System and method for administering physical security access to components of a process control system

A system for restricting physical access to at least one component process control system component has a locking device that is integrated with process control system security administration data. The locking device accesses the process control system security data when authenticating a user. ... Abb Schweiz Ag

01/11/18 / #20180011128

High-voltage measuring unit with self-correction

The present application relates to a method for providing a corrected measuring signal indicating a high voltage on a high-voltage node (hv), including: injecting a periodic injection signal into a voltage divider coupled between the high-voltage node (hv) and a reference potential; obtaining a sensing signal at a sensing node (s) of the voltage divider, wherein the sensing signal depends on the periodic injection signal; from the sensing signal, separating a first sensing signal portion resulting from the high voltage and a second sensing signal portion resulting from the periodic injection signal; and depending on the second sensing signal portion, correcting the first sensing signal portion corresponding to the high-voltage signal in order to obtain the corrected measuring signal.. . ... Abb Schweiz Ag

01/11/18 / #20180010646

Sleeve coupling with flange having internal tooth design for increasing useful life of flexible insert

A flexible coupling assembly for connecting two shafts in a coaxial alignment has a flange including a hub with axially opposite first and second ends and a plurality of radial grooves angularly spaced about a periphery of the hub. The radial grooves have crests and roots. ... Abb Schweiz Ag

01/11/18 / #20180009519

Arrangement and method for installing propulsion unit

An arrangement and a method for installing a propulsion unit to a hull of a ship. The propulsion unit comprises an upper part of the propulsion unit attachable to the hull of the ship and a lower part of the propulsion unit where to a propeller shaft is rotatably supported, and the upper part of the propulsion unit having flanges to attach the flanges tightly to the hull, and wherein there is an aperture in bottom of hull where to the propulsion unit is to be installed. ... Abb Schweiz Ag

01/04/18 / #20180006679

Auto-balancing transformers

Auto balancing transformers are disclosed for balancing a multi-phase electrical system by varying the degree of electromagnetic coupling between primary and secondary winding. The auto-balancing transformer includes a movable to selectively couple primary phases with two or fewer phases of the secondary system.. ... Abb Schweiz Ag

01/04/18 / #20180006436

Switchgear cooling system comprising a heat pipe, fan and thermoelectric generation

A cooling system includes an evaporator associated with a heat source. A condenser is located at a higher elevation than the evaporator. ... Abb Schweiz Ag

01/04/18 / #20180005727

Apparatus containing a dielectric insulation gas comprising an organofluorine compound

The present invention relates to an apparatus for the generation, transmission, distribution and/or usage of electrical energy. The apparatus comprising a housing enclosing an insulating space and an electrical component arranged in the insulating space. ... Abb Schweiz Ag

01/04/18 / #20180004193

A method for controlling a process plant using transition data

The present invention discloses a method for controlling a process in a process plant using a controller. The method comprises receivable associated with the process, determining a first value of at least one key performance indicator associated with the transition from the process data of the first process variable between the first steady state and the second steady state, comparing the determined first value of the at least one key performance indicator against a threshold value of the at least one key performance indicator; and determining a correction factor for modifying a set point of the process variable based on the comparison, for controlling the process.. ... Abb Schweiz Ag

12/28/17 / #20170373610

Energy panel arrangement power dissipation

One or more techniques and/or systems are provided for facilitating shutdown of output power from an energy panel arrangement to a power converter. A shutdown implementation module is coupled between an energy panel arrangement and a power converter that converts dc power from the energy panel arrangement to ac power for an ac power grid. ... Abb Schweiz Ag

12/28/17 / #20170373545

Electrical machine

An electrical machine has a nonmetallic housing having a stator band and an endplate, wherein the laminated stator core is in self-locked engagement with the housing. Another electrical machine has a unitary nonmetallic housing with an integral stator band and an integral endplate, wherein the laminated stator core is over-molded with the housing. ... Abb Schweiz Ag

12/28/17 / #20170373201

Safety device for photovoltaic installations

The present disclosure is directed to a safety device for photovoltaic installations. The safety device includes a first terminal adapted to connect to a first output terminal of a solar panel, a second terminal adapted to connect to a second output terminal of the solar panel, a first switching module connected between the first terminal and the second terminal. ... Abb Schweiz Ag

12/28/17 / #20170372857

Sf6 insultated circuit breaker system with heater

A sulfur hexafluoride (sf6) insulated circuit breaker system having a controller coupled to at least two different sensor devices and operative to control a heat output of an sf6 heater based on signals from the sensor devices. An sf6 insulated circuit breaker system includes a controller coupled to a circuit breaker position indicator and operative to control an sf6 heater based on a signal from the contact position indicator sensor. ... Abb Schweiz Ag

12/28/17 / #20170371367

Power converter using wide band-gap devices

Unique systems, methods, techniques and apparatuses of a power converter are disclosed. One exemplary embodiment is an electrical power conversion system comprising a first converter stage, a second converter stage, a third converter stage, and a control system. ... Abb Schweiz Ag

12/28/17 / #20170371319

Method for identifying a sequence of events associated with a condition in a process plant

The invention provides a method for identifying a sequence of events associated with a condition in a process plant using a control system. The method comprises recording process data, which is timestamped, and recording audio input from each personnel of a plurality of personnel of the process plant. ... Abb Schweiz Ag








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