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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


Chopper assembly and controlling method thereof

A chopper assembly including at least two chopper units, and a controlling unit configured to generate a control signal for controlling an activation of the corresponding chopper unit in cycle. The activations of the at least two chopper units are controlled by the controlling unit to be either initially offset by a phase shift or adjusted to have a phase shift after a predefined time duration, the phase shift indicating a time difference between rising edges or between falling edges of respective pulses of different signals. ... Abb Schweiz Ag

Voltage source converter (vsc) control system with active damping

A voltage source converter control system for active damping of a resonance oscillation in the vsc includes a regular phase-locked loop 2, and a slow pll 3. The control system is arranged such that an imaginary part of the ad is obtainable from the slow pll. ... Abb Schweiz Ag

Scalable switchyard for interconnecting direct current power networks

The invention concerns a switchyard for interconnecting direct current power networks and a direct current power transmission system comprising such a switchyard. The switchyard comprises a number of interconnected entities comprising at least two main circuit breakers and a number of transfer switches, where each network has two connections to the switchyard, at least one via a transfer switch, each main circuit breaker has four connections in the switchyard, two at each end of the main circuit breaker and at least one via a transfer switch, and each network is joined with every other network via a corresponding path through at least one main circuit breaker as well as via a corresponding path bypassing all main circuit breakers.. ... Abb Schweiz Ag

Electrical switchgear system

An electrical switchgear system includes a switchgear enclosure. The switchgear enclosure has a plurality of compartments housing switchgear components. ... Abb Schweiz Ag

Sliding contact assembly for accelerating relative separation speed between plug contacts and socket outlet contacts

A sliding contact assembly for a dc electrical outlet receives plug contacts of an electrical plug. The assembly includes sliding contact structure having a base and a plurality of electrical sliding contacts fixed to the base. ... Abb Schweiz Ag

Low voltage electrical contact system with enhanced arc blow effect

Electrical contact system with a first and a second contact (1, 5), each having a contact surface (4, 8). The first electric contact (1) has a mesostructured electric contact portion (14) with a plurality of slots (15) and ridges (16) formed between neighboring slots (16) of the plurality of slots (16). ... Abb Schweiz Ag

Robot localization in a workspace via detection of a datum

Apparatus and method is disclosed for determining position of a robot relative to objects in a workspace which includes the use of a camera, scanner, or other suitable device in conjunction with object recognition. The camera, etc is used to receive information from which a point cloud can be developed about the scene that is viewed by the camera. ... Abb Schweiz Ag

Method of electroplating conductor and joints thereof

A method includes providing a conductor with a joint and a solution. In accordance with a step of the method, the conductor with the joint is inserted into the solution for a time sufficient to deposit a sufficient amount of conductive material in the joint to allow current to flow through the joint at a desired level when the conductor is installed in an application. ... Abb Schweiz Ag

Shear pin for robot calibration

A shear pin for calibrating an industrial robot, the shear pin including an elongated body including a weakening defining a break location in case of overload. The shear pin is configured to be mounted to a calibration pin holder on the robot. ... Abb Schweiz Ag

Method and control system for controlling a power converter

A method of controlling a power converter, connected to an electrical grid, to mimic a synchronous generator, by: determining a frequency control error with respect to a setpoint and actual frequency of the grid, determining an input power to an inertia model of a synchronous generator based on the frequency control error, regulating by means of the input power a rotational frequency of the inertia model, determining a voltage control error with respect to a setpoint and actual voltage, determining an exciter parameter of a synchronous generator model based on the voltage control error, regulating by means of the exciter parameter an output voltage of the synchronous generator model, adjusting the rotational frequency or a phase angle obtained from the rotational frequency, and the output voltage based on a virtual impedance of a stator of the synchronous generator model, and controlling the power converter based on the adjusted rotational frequency or the adjusted phase angle and on the adjusted output voltage.. . ... Abb Schweiz Ag

Four-level power converter

The present invention is concerned with a four-level voltage source converter topology including two intermediate converter branches connecting two intermediate voltage levels to a load terminal, and including a interconnect switch coupling the two intermediate branches. The interconnect switch replaces two controlled switches present in corresponding four-level prior art topologies. ... Abb Schweiz Ag

Electrical machine with an active grounding

A method for preventing a frequency component of a voltage from occurring in an electrical machine including the steps of: obtaining, either by measuring a voltage signal or a current signal from the electrical machine in time domain and transforming the measured signal into frequency domain, by simulating or deducing a first frequency component present in the electrical machine in absence of a grounding, the first frequency component representing a first undesired frequency higher than a limit frequency of 500 hz; and providing the electrical machine with a first grounding at a grounding location, the first grounding including a resonant circuit resonating at the first undesired frequency. In order to get rid of harmful shaft voltages in the form of sharp voltage peaks at high frequencies, it is first necessary to determine at which undesired frequency or frequencies these voltage peaks occur. ... Abb Schweiz Ag

Method and system for controlling cooling system of power equipment

One embodiment of the present application provides a method for obtaining a first data set representing operational cost related parameters specific to the power equipment and its cooling system forecasted for a series of time intervals of present load cycle in consideration of a second data set representing operational condition related parameters for the power equipment forecasted for a series of time intervals of present load cycle; in consideration of the parameters represented by the first data set, through knowledge-based predetermined numerical and/or logical linkages, establishing a third data set representing cooling capacity parameters for the cooling system at the series of time intervals of the present load cycle according to criteria for operational cost optimization of the power equipment and its cooling system for the present load cycle; and in the present load cycle, controlling the cooling system to operate at the cooling capacity parameters at the series of time intervals represented by the established third data set.. . ... Abb Schweiz Ag

A method for determining the operating status of a mv switching apparatus of the electromagnetic type

A method for determining the operating status a mv switching apparatus, which comprises: one or more electric poles, each comprising a movable contact and a fixed contact adapted to be coupled or uncoupled during the switching operations of the switching apparatus; an electromagnetic actuator for actuating one or more movable contacts of the electric poles, the electromagnetic actuator having at least a test winding wound around a magnetic element; a capacitor bank for providing electric power to the electromagnetic actuator. The method comprises: providing a test signal (st) to the test winding for an observation period of time (to), the test signal having a waveform capable of exciting the magnetic element; obtaining first measuring data (vc) indicative of a voltage at first terminals (t1) of the capacitor bank during the observation period of time; obtaining second measuring data (vl, il) indicative of a voltage at second terminals (t2) of the test winding and indicative of a current circulating along the test winding during the observation period of time; and, calculating estimation data (Ĉ, icd, ic) indicative of the operating status of the capacitor bank at the end of the observation period of time on the base of the first and second measuring data, the first estimation data comprising a first estimation value (Ĉ) indicative of the capacitance of the capacitor bank.. ... Abb Schweiz Ag

09/20/18 / #20180267085

Determining a fundamental component of an ac voltage

A method for estimating a fundamental component of an ac voltage includes receiving a timely varying measurement signal of the ac voltage; parametrizing a fundamental component of the ac voltage; and determining parameters of the fundamental component based on minimizing a cost function. The fundamental component has a rated frequency, a variable amplitude and a variable phase shift. ... Abb Schweiz Ag

09/06/18 / #20180254233

Power semiconductor device and method for producing a power semiconductor device

The present application relates to a power semiconductor device, including a substrate having a first side and a second side, the first side and the second side being located opposite to each other, wherein the first side includes a cathode and the second side includes an anode, wherein a junction termination of a p/n-junction is provided at at least one surface of the substrate, preferably at at least one of the first side and the second side, the junction termination is coated by a passivating coating, the passivating coating including at least one material selected from the group consisting of an inorganic-organic composite material, parylene, and a phenol resin comprising polymeric particles. A device as described above thus addresses issues of passivation of junction terminations and thus prevents or at least reduces the danger of fatal defects such as unstable device operation caused by changes in film properties, instability, water permeability, permeability of movable ions such as sodium, pinholes and cracks, and aluminum metal disconnection or corrosion due to degradation and stress.. ... Abb Schweiz Ag

09/06/18 / #20180250810

Component feeder and a system for picking components comprising the component feeder

A component feeder including a stationary picking surface for receiving components to be picked, a vision system including an image unit arranged to take images of components distributed on the picking surface and a load device including one or more load sensors adapted to detect the presence of a component on the picking surface and the vision system is configured to automatically trigger the image unit to take an image upon detecting the presence of the component on the picking surface.. . ... Abb Schweiz Ag

08/23/18 / #20180241332

Method for identifying the discrete instantaneous angular speed of an electromechanical system

A method for identifying the discrete instantaneous angular speed of electromechanical systems in which electrical rotating machinery is used and in which at least one electrical signal is measured during an operation of the electromechanical system. The method includes measuring analog stator current signals and analog stator voltage signals for at least one phase a, b, c, converting the measurements into a digital discrete form, transmitting the digital discrete signals to a computer device wherein data analysis is performed in a processor unit on the basis of a simplified mathematical model of the dynamics of the motor or generator. ... Abb Schweiz Ag

08/23/18 / #20180241300

Variable inductor apparatuses systems and methods

Unique systems, methods, techniques and apparatuses for a zvt zct resonant converter with a variable resonant tank are disclosed. One exemplary embodiment is a system comprising a bidirectional resonant converter comprising an input/output terminal, a switching device coupled with the input/output terminal, a resonant circuit coupled with the switching device and including a variable inductor, an output/input terminal coupled with the resonant circuit, and a dc biasing circuit operatively coupled with the variable inductor. ... Abb Schweiz Ag

08/23/18 / #20180241183

A switching device of the withdrawable type

A switching device including a switching unit with one or more electric poles having an insulating casing. The switching device is reversibly movable between an insertion position, at which said switching unit is electrically connected with an electric line, and a withdrawal position, at which said switching unit is electrically disconnected from said electric line. ... Abb Schweiz Ag

08/23/18 / #20180240615

Vacuum interrupter with one movable contact

A vacuum interrupter includes: one movable contact fixed on a movable contact stem; and one fixed contact with a fixed contact stem. The fixed contact and the movable contact are located in a electrically insulating tube, which is vacuumtightly closed by metal lids at boths sides. ... Abb Schweiz Ag

08/23/18 / #20180240587

Cooling of a static electric induction system

A static electric induction system is disclosed. The system includes a heat generating component, cooling fluid, a cooling duct along the heat generating component and a pumping system configured for driving the cooling fluid through the cooling duct, wherein the pumping system is configured for applying a varying flow rate over time of the cooling fluid in the cooling duct along a predetermined flow rate curve which is a function of time.. ... Abb Schweiz Ag

08/23/18 / #20180238934

Fiber-optic current sensor with tolerance to connector misalignment

A fiber-optic current sensor includes an opto-electronics module, a sensor head and a connecting fiber connecting the opto-electronics module to the sensor head. The sensor includes a first and a second beam splitter, between which the measuring light runs in two branches. ... Abb Schweiz Ag

08/16/18 / #20180234092

Feedback controller for resonant gate drive

Unique systems, methods, techniques and apparatuses of a gate driver are disclosed herein. One exemplary embodiment is a gate driver comprising a first and second dc rail, a first converter arm including a first and second semiconductor device, a second converter arm including a third and fourth semiconductor device, an inductor, and a controller. ... Abb Schweiz Ag

08/16/18 / #20180233971

Rotor for electric machine, and manufacturing method of rotor

A rotor for an electric machine, wherein the rotor comprises a plurality of stack elements and each of the stack elements includes material of first magnetic conductance. Each of the stack elements includes a plurality of sectorial sections distributed round a rotational axis of the rotor. ... Abb Schweiz Ag

08/16/18 / #20180233921

Method for controlling electric power conversion system and control arrangement for electric power conversion system

A method and a control arrangement for an electric power conversion system including a plurality of electric power converters, the control arrangement configured to collect data related to the electric power conversion system, determine an optimal configuration for each one of the electric power converters of the electric power conversion system on the basis of collected data through a simulation of the electric power conversion system generate, for each one of the electric power converters, a source code for a firmware of the electric power converter on the basis of the determined optimal configuration for the electric power converter in question, and re-program each one of the electric power converters with the respective source code generated for the electric power converter in question.. . ... Abb Schweiz Ag

08/16/18 / #20180233276

Magnetic shunt assembly for magnetic shielding of a power device

The present application relates to a magnetic shunt assembly for magnetic shielding of a power device, in one form for an electrical power transformer, including a plurality of joined ferromagnetic sheets and a plurality of bonding layers for bonding subsequent sheets of the plurality of ferromagnetic sheets to form an integral assembly.. . ... Abb Schweiz Ag

08/16/18 / #20180229906

Reinforced cable tie strap and method of manufacture

A reinforced cable tie generally includes an elongate strap having a first end, a second end and an elongate planar strap body therebetween, a head having an upstanding central wall separating a first and a second elongate parallel passageway through the head for respective receipt of the first and second ends of said strap, a locking device supported in the head for retaining the first and second ends of the strap and a continuous reinforcement disposed in and extending substantially continuously along a path defining the strap. In a method for forming a cable tie, a continuous reinforcing strand is co-extruded within an elongate strap and a head is assembled to the strap.. ... Abb Schweiz Ag

08/16/18 / #20180229373

Platform including an industrial robot

A platform including at least one industrial robot, wherein the platform is arranged to be carried by a vehicle to a working site where the at least one industrial robot is to perform a task in relation to the working site. The platform includes a platform body, a platform control unit and a connecting arrangement with a connecting device arranged to be connected to a vehicle arm of the vehicle such that the platform can be carried by the vehicle arm of the vehicle. ... Abb Schweiz Ag

08/16/18 / #20180229369

Robot off-line programming method and apparatus using the same

A robot off-line programming method. The method includes: respectively obtaining a first data representing positions and orientations of the plurality of targets on at least one work piece, a second data representing position of the at least one work piece, a third data representing geometry of a tool, and a fourth data representing the tool position and orientation with respect to an end of the robot; obtaining the robot path for which the tool tip passes through the plurality of the targets on the at least one work piece; using a function of an inverse kinematics for the robot model in consideration of the first data, the second data, the third data and the fourth data, calculating how many of the targets on the obtained robot path are reachable to the tool in relation to various rotation angle of the tool around the tool axis within a predetermined range so as to comply with optimization criteria. ... Abb Schweiz Ag

08/09/18 / #20180227121

Encryption scheme using multiple parties

. . The present invention discloses a method for computing a secret value including a first secret using a function including an operation, comprising: computing, by a host, a first encrypted value of the first secret with a first key; sending, by the host, the first encrypted value to a value holder and the first key to a key holder, wherein the value holder and the key holder are independently trusted by the host; computing, by the value holder, a computed encrypted value from the first encrypted value using the function; and computing, by the key holder, a computed key from the first key using the function.. . ... Abb Schweiz Ag

08/09/18 / #20180226882

A multilevel converter with a chopper circuit

A multilevel converter includes a first and a second converter block series-connected between two dc terminals and a chopper circuit between the blocks. Each block includes a number of valve arm strings, each including an upper and a lower valve arm and a number of converter cells. ... Abb Schweiz Ag

08/09/18 / #20180226848

Rotor for rotating electric machine

A rotor for a synchronous reluctance machine having an even number 2 p of poles circumferentially spaced at an angle α, with α=2 π/2 p, the rotor comprising a substantially cylindrical laminate stack having a plurality of magnetically conductive laminations. One or more of the magnetically conductive laminations includes non-magnetic flux barriers which are spaced from each other in the radial direction, one or more of the non-magnetic flux barriers having a first and second bridge transversally positioned in correspondence of their lateral ends and defining a first and a second air-gap with the outer rim of the magnetically conductive lamination, and further including a third and a fourth bridge transversally positioned and respectively defining together with the first and second bridge a first and a second internal space which are filled with an electrically conductive and non-magnetically conductive material.. ... Abb Schweiz Ag

08/09/18 / #20180226213

Electric power distribution switchgear and method of breaking an electric power current

An electric power distribution switchgear is connected between an electric power grid and an electric power equipment. The switchgear includes a synchronized vacuum switching apparatus configured to break the current to the electric power equipment using a synchronized technique to avoid re-ignition during the breaking and thus any transients caused by such re-ignition; and a surge arrester arrangement connected to the electric power equipment, the surge arrester arrangement being designed and configured to only handle transients caused by the current chopping at the breaking. ... Abb Schweiz Ag

08/09/18 / #20180224816

Photovoltaic inverter having an improved communication arrangement with a remote computerised system

A photovoltaic inverter for a photovoltaic electric power generation plant, the photovoltaic inverter comprising a control unit for controlling the operation of the photovoltaic inverter and a main communication port for communication with a remote computerized system through a main communication channel. The photovoltaic inverter comprises an auxiliary communication port for communication with a remote computerized system through an auxiliary communication channel. ... Abb Schweiz Ag

08/09/18 / #20180222063

Robot joint and robot including the same

A robot joint and a robot using the robot joint is provided. The robot joint includes a first part and a second part configured to be rotatable with each other around a joint axis. ... Abb Schweiz Ag

08/09/18 / #20180222055

Calibration article for a 3d vision robotic system

A calibration article is provided for calibrating a robot and 3d camera. The calibration article includes side surfaces that are angled inward toward a top surface. ... Abb Schweiz Ag

08/09/18 / #20180221935

Loading dies in a press

Systems and methods for loading and/or unloading a die in a press are disclosed. A handling system for loading a die may include a linear sliding path between a supply position outside the press and a press position on the press base, configured to support a die such that the die is displaceable while it is supported on the path, and a robot configured to displace the die between the supply position and the press position along the linear sliding path. ... Abb Schweiz Ag

08/09/18 / #20180221902

Methods for determining process parameters for the robot-based spray application of viscous fluids

A system is disclosed for determining process parameters for the spray application of viscous fluids, which can include an application system, which can be actuated by predefining input parameters, for a viscous fluid having at least the components of metering device, fluid valve, and application nozzle. The dynamic behavior of the application system can be dependent, with respect to the volume flow profile of the viscous fluid during the application, and also on predefinable control process parameters. ... Abb Schweiz Ag

08/02/18 / #20180219491

Arrangement, method and computer program product for limiting circulating currents

An arrangement, method and computer program product are provided for limiting circulating currents in a converter converting between ac and dc. The converter has a number of ac and dc terminals and includes a number of converter arms, where a first and a second converter arm are connected in parallel between a first dc terminal and a first ac terminal. ... Abb Schweiz Ag

08/02/18 / #20180219369

Cable fitting for connecting a high-voltage cable to a high-voltage component

A high-voltage cable fitting, typically a cable end termination or a cable joint, includes coaxially arranged around an axis a rigid conical insulator, an electrically insulating, elastomeric stress-relief cone matching the rigid conical insulator through a conical interface and an axially aligned current path. The current path connects a conductor of the cable to a high-voltage current terminal arranged on top of the rigid conical insulator and provided for connection to a high-voltage component. ... Abb Schweiz Ag

08/02/18 / #20180219323

Cable fitting for connecting a high-voltage cable to a high-voltage component or another high-voltage cable

A high-voltage cable fitting with a rigid core insulator that has a first conical outer surface extending concentrically about a longitudinal axis. An elastomeric stress relief element has a first conical inner surface is designed for mating the first conical outer surface at an interface. ... Abb Schweiz Ag

08/02/18 / #20180218860

Installation switching apparatus having an exhaust air duct and a set screw

An installation switching apparatus includes: a housing; at least one contact point; an exhaust air duct which in an upstream portion thereof receives arc gases of a switching arc that has been created at the at least one contact point, and by way of an exhaust air opening in a housing wall of the housing in a downstream portion of the exhaust air duct the exhaust air duct releases the arc gases into an environment of the housing; at least one thermal release; and a set screw for setting the at least one thermal release. The set screw at an activation end thereof has a formed element for contacting in a form-fitting manner a tool for rotating activation of the set screw. ... Abb Schweiz Ag

08/02/18 / #20180218852

Electrical service switching device having an exhaust air opening

An electrical service switching device includes: a housing in which at least one contact point is arranged, the housing having a first terminal connection area, in which a plug-in terminal is arranged and is configured for for the purpose of connecting the service switching device to a busbar, and a second terminal connection area, in which a screw terminal for the connection of connection conductors is arranged, the first and the second terminal connection area being formed on opposite narrow sides of the housing; and an arc quenching device associated with the at least one contact point and having an arc inlet side and an exhaust air side at which an exhaust air flow can exit. The exhaust air side of the arc quenching device is oriented towards the first terminal connection area in the housing interior.. ... Abb Schweiz Ag

08/02/18 / #20180218851

Switching device

A switching device for low or medium voltage electric power distribution networks, the switching device comprising: at least an electric pole comprising a movable contact and a fixed contact, which are coupleable/decoupleable one to another; a circuit assembly, which comprises a chain of semiconductor devices adapted to switch in an on state or in an off state depending on the voltage applied thereto, the semiconductor devices being electrically connected in series one to another in such a way that a current can flow according to a predefined conduction direction (cd) when the semiconductor devices are in an on state. The circuit assembly comprises an input terminal, an output terminal and at least an intermediate terminal electrically connected with at least an intermediate electric node positioned between two subsequent semiconductor devices. ... Abb Schweiz Ag

08/02/18 / #20180217196

Method for classifying the status of the winding clamping of a power transformer

A method for classifying a status of a winding clamping of a power transformer immersed in an oil filled transformer tank, the power transformer including at least one transformer coil with at least one clamped electrical winding arranged on a transformer core, includes the following steps: applying a mechanical force impulse on an impact area of the transformer tank, so that the at least one clamped electrical winding is mechanically excited to vibration and a voltage is induced within the at least one clamped electrical winding; measuring the induced voltage of the at least one clamped electrical winding for a period of time during vibration to generate measurement data; transferring the measurement data from the time domain into the frequency domain and providing a respective dataset comprising the measurement data in the frequency domain; and searching for local maxima within the measurement data in the frequency domain of the dataset.. . ... Abb Schweiz Ag

08/02/18 / #20180214937

Casting mold and a method for detecting a temperature distribution of molten metal in a casting mold

A casting mold including a copper plate and a plurality of optical fibers, having a plurality of temperature measuring points for the copper plate while casting. Molten metal is cast into the mold along an axis of, the optical fibers built-in the plate. ... Abb Schweiz Ag

07/26/18 / #20180212533

A multilevel converter with reduced ac fault handling rating

. . A multilevel converter converting between ac and dc includes a phase leg having a first and a second phase arm, the first phase arm being connected between a first pole having a first potential and a first ac terminal and the second phase arm being connected between the first ac terminal and a second potential, where the phase arms include half-bridge and full-bridge cells, where each cell includes at least one energy storage element for providing the voltage contribution and cell switching units with cell switches and anti-parallel diodes for controlling the voltage contribution, where the full-bridge cells include a bypass switch controllable to bypass the corresponding energy storage element, and when a phase-to-ground fault occurs the cell switches are blocked and the bypass switches activated with a delay in relation to the blocking.. . ... Abb Schweiz Ag

07/26/18 / #20180212071

Junction barrier schottky diode with enhanced surge current capability

A semiconductor power rectifier with increased surge current capability is described, which has a semiconductor layer having a first main side and a second main side opposite to the first main side. The semiconductor layer includes a drift layer having a first conductivity type, at least one pilot region having a second conductivity type different from the first conductivity type, a plurality of stripe-shaped emitter regions having the second conductivity type, and a transition region having the second conductivity type, wherein the at least one pilot region has in any lateral direction parallel to the first main side a width of at least 200 μm and is formed adjacent to the first main side to form a first p-n junction with the drift layer, each emitter region is formed adjacent to the first main side form a second p-n junction with the drift layer, and the transition region is formed adjacent to the first main side to form a third p-n junction with the drift layer. ... Abb Schweiz Ag

07/26/18 / #20180208414

Conveying apparatus and transmitting system

The present disclosure provides a conveying apparatus and a transmitting system. The conveying apparatus includes: a magnetic rack movable along a first direction, having a plurality of magnetic rack magnetic teeth arranged in the first direction, adjacent ones of the magnetic rack magnetic teeth having different polarities; at least one first magnetic gear rotatable about at least one first axis, respectively, wherein each first magnetic gear has a plurality of first magnetic gear magnetic teeth and adjacent ones of the first magnetic gear magnetic teeth have different polarities; at least one second magnetic gear rotatable about at least one second axis, wherein each second magnetic gear has a plurality of second magnetic gear magnetic teeth and adjacent ones of the second magnetic gear magnetic teeth have different polarities; wherein: at least one first magnetic gear, in combination with at least one second magnetic gear, forms at least one magnetic gear set, respectively; the magnetic rack and second magnetic gear may magnetically engage in a non-contact state with different first magnetic gear teeth of the first magnetic gear belonging to the same magnetic gear set via the magnetic rack magnetic teeth and the second magnetic gear teeth, respectively; and when the at least one second magnetic gear is used as a driving gear to output power, the power may be transmitted to the magnetic rack through at least one first magnetic gear so as to move it along the first direction.. ... Abb Schweiz Ag

07/19/18 / #20180204913

Flat gate commutated thyristor

The invention relates to a turn-off power semiconductor device comprising a plurality of thyristor cells, each thyristor cell comprising a cathode region; a base layer; a drift layer; an anode layer; a gate electrode which is arranged lateral to the cathode region in contact with the base layer; a cathode electrode; and an anode electrode. Interfaces between the cathode regions and the cathode electrodes as well as interfaces between the base layers and the gate electrodes of the plurality of thyristor cells are flat and coplanar. ... Abb Schweiz Ag

07/19/18 / #20180203044

Accessory device for low or medium voltage electric equipment

The invention relates to an accessory device assembly for low or medium voltage electric applications. The accessory device includes a casing and electronic means including one or more current flowing in an electric cable. ... Abb Schweiz Ag

07/12/18 / #20180198328

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

07/12/18 / #20180198263

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

07/12/18 / #20180197704

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

07/12/18 / #20180197683

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

07/05/18 / #20180191287

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

07/05/18 / #20180191241

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

07/05/18 / #20180191216

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

07/05/18 / #20180191197

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

07/05/18 / #20180191160

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

07/05/18 / #20180191142

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

07/05/18 / #20180190453

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

07/05/18 / #20180188187

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

07/05/18 / #20180188184

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

07/05/18 / #20180186072

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








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