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Sma Solar Technology Ag
Sma Solar Technology Ag_20100114
Sma Solar Technology Ag_20100128

Sma Solar Technology Ag patents


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

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "S" | Sma Solar Technology Ag-related inventors


Unfolding bridge, inverter having reactive-power capability, and polarity reversing method

An unfolding bridge includes a half-bridge with a first input terminal, a second input terminal, and an output terminal, wherein the half-bridge includes a first bridge switch connected between the first input terminal and the output terminal and a second bridge switch connected between the second input terminal and the output terminal. The unfolding bridge also includes a further half-bridge which includes a first further bridge switch connected between the first input terminal and a further output terminal and a second further bridge switch connected between the second input terminal and the further output terminal. ... Sma Solar Technology Ag

Method for operating and inverter, inverter, and photovoltaic system

A method for operating an inverter, the dc voltage input of which is connected to a positive pole (pv+) and to a negative pole (pv−) of a pv generator and the ac voltage output of which is connected to an ac grid via a transformer, is disclosed. The method includes determining a potential of the positive pole and/or the negative pole (upv+, upv−) of the pv generator with respect to a ground potential by a monitoring circuit, and selecting a modulation method for controlling power switches of the inverter from a number of modulation methods stored in a storage device of the inverter based on the determined potential (upv+, upv−) such that a voltage stress on components of the pv system arranged on the ac side, with respect to ground, is reduced. ... Sma Solar Technology Ag

Driver circuit, circuit arrangement comprising a driver circuit, and inverter comprising a circuit arrangement

The disclosure discloses a driver circuit that is intended for a power semiconductor switch having a unidirectional flow direction and having a control connection, a reference potential connection and a controlled connection. The driver circuit includes a driver module having a control output, a reference potential input and an overvoltage monitoring input. ... Sma Solar Technology Ag

Method for connecting an energy generation installation to a medium voltage network and energy generation installation

A method for connecting an energy generation installation to a medium-voltage grid includes determining a calibration factor for adjusting first voltage values to second voltage values by a controller of the energy generation installation. During an idle state of a medium-voltage transformer, the first voltage values are detected at a capacitive voltage divider, arranged on the medium-voltage side of the medium-voltage transformer, and the second voltage values are detected by a voltage detection means, arranged on the low-voltage side of the medium-voltage transformer. ... Sma Solar Technology Ag

Dc/dc converter with a flying capacitor

A dc/dc converter includes a first low-voltage terminal point, a second low-voltage terminal point and a third low-voltage terminal point, and a first high-voltage terminal point and a second high-voltage terminal point. The first low-voltage terminal point and the first high-voltage terminal point are directly connected to one another, and an actively drivable switching element, a capacitor and a further switching element are connected in series between the first high-voltage terminal point and the second high-voltage terminal point. ... Sma Solar Technology Ag

Apparatus for determining insulation resistance at a pv generator, and photovoltaic installation

An apparatus for determining insulation resistance at a pv generator includes a first unit configured to shift a generator potential at an output terminal of the pv generator, and a second unit. The second unit is configured to determine the insulation resistance by: connecting a measurement voltage to the output terminal of the pv generator, measuring a first current value and a first voltage value at the output terminal of the pv generator before the measurement voltage is connected, measuring a second current value and a second voltage value at the output terminal of the pv generator after the measurement voltage is connected, and determining the insulation resistance of the pv generator based on the measured first and second current values and the measured first and second voltage values. ... Sma Solar Technology Ag

Grid-tied inverter, inverter arrangement, and method for operating an inverter arrangement

A grid-tied inverter for supplying current to a power supply system includes an output bridge arrangement that is actuated via a pulse width modulator, wherein switching times of the output bridge arrangement are determined by using a periodic auxiliary signal, wherein the frequency of the periodic auxiliary signal varies according to a prescribed periodic wobble signal. The inverter further includes a synchronization unit configured to provide phase synchronization of the auxiliary signal to the power supply system, wherein the synchronization unit is configured to adjust a prescribed phase offset of the periodic auxiliary signal in relation to a phase of the power supply system, and a further synchronization unit configured to provide phase synchronization of the periodic wobble signal to the power supply system. ... Sma Solar Technology Ag

Inverter with a multi-part housing and an internal cooling-air duct

An inverter for converting an input-end direct current into an output-end alternating current to be fed into an ac voltage supply system includes a first housing part with direct current connections for receiving direct current lines of a direct current generator, a second housing part with alternating current connections for receiving alternating current lines of an ac voltage supply system, a third housing part for accommodating power-electronics components of a dc voltage converter, and a fourth housing part for accommodating power-electronics components of an inverter bridge circuit. The housing parts each have an essentially planar rear wall and are arranged in such a way that they enclose a cooling-air duct with an essentially rectangular cross section, wherein the first housing part is arranged opposite the second housing part and the third housing part is arranged opposite the fourth housing part. ... Sma Solar Technology Ag

Inverter and control method for an inverter

The disclosure relates to an inverter for supplying a power provided as a dc voltage at a dc input to an ac mains connectable to an ac output. In this case, the inverter includes a switching network with a plurality of semiconductor switches and a digital control unit for producing a digital switching pattern for digitally operated semiconductor switches of the switching network that are able to be used to produce a first output voltage (uout,dig). ... Sma Solar Technology Ag

Integral inductor arrangement

The disclosure relates to an integral inductor arrangement with at least three magnetic loops arranged side by side to each other in a row and at least one winding associated with each of the magnetic loops. The magnetic loops are formed by individual core elements, each of which being part of one of the magnetic loops, and shared core elements, each of which being part of two adjacent of the magnetic loops. ... Sma Solar Technology Ag

Low inter-winding capacitance coil form

A coil form with a low inter-winding capacitance is disclosed including a bobbin formed from an electrically insulating material and including a tube section shaped wall. A coil is mechanically supported by the bobbin and includes a first plurality of conductor windings on the outside of the wall and a second plurality of conductor windings on the inside of the wall. ... Sma Solar Technology Ag

Inverter and method for cooling an inverter

The disclosure relates to an inverter, in particular for a photovoltaic system, including a housing with at least one chamber and a cooling air channel formed within the chamber for guiding ambient air as cooling air for electrical and/or electronic components of the inverter disposed along the cooling air channel. The cooling air channel extends through the housing from an air inlet to an air outlet. ... Sma Solar Technology Ag

Combiner box having motorized overcurrent protection

The disclosure relates to a combiner box including input connections for string lines from a plurality of strings of photovoltaic modules, and output connections for a pair of output lines to an inverter. The combiner box further includes a switching device by means of which the strings are connected to the inverter and which comprises output-side switching contacts and, for each of the strings or for each pair of strings connected in parallel in a fixed manner in the combiner box, at least one separate input-side switching contact, and an overcurrent protection device, which interrupts occurring overcurrents from or to each of the strings or at least from or to each of the pairs of strings connected in parallel in a fixed manner in the combiner box. ... Sma Solar Technology Ag

Method for integrating an inverter into a wireless local area communication network, and inverter suitable therefore

To integrate an inverter into a wireless local area communication network, wherein the inverter is connectable by its input to a local energy source and by its output to an ac mains, the inverter and a network access point of the wireless local area communication network are taken for a limited time period to an integration state in which the inverter joins the wireless local area communication network, wherein network access data pertaining to the wireless local area communication network are stored in a memory associated with the inverter, which network access data are used by said inverter to incorporate itself into the wireless local area communication network in future. In this case, the inverter is taken to its integration state by virtue of the mains voltage of the ac mains being applied to its output for the first time or again following an interruption.. ... Sma Solar Technology Ag

06/29/17 / #20170187186

Method and apparatus for the operation of a power station of fluctuating performance connected, besides a system former and at least one load, to a limited ac system

A method and associated apparatus for operating a power station of fluctuating electrical capacity that, besides a voltage-setting system former outputting active power and reactive power and at least one load, is connected to a limited ac grid. The method and associated apparatus includes defining a desired self-contained operating range of the system former on the pq level, in which operating range the system former is able to efficiently correct fluctuations arising in a mains voltage of the ac grid, ascertaining a present operating point of the system former on the pq level, and controlling an output of active power and reactive power by the power station such that the operating point of the system former is kept in the desired operating range.. ... Sma Solar Technology Ag

06/22/17 / #20170181298

Housing for receiving electronic components

A housing for receiving electronic components includes a housing body and a housing cover. The housing body and the housing cover are connected to one another at multiple fastening points. ... Sma Solar Technology Ag

06/22/17 / #20170179880

Method for detecting arcs, and detection apparatus for arcs, in a photovoltaic system

A method and associated device for detecting arcs in a photovoltaic system with an inverter and with a plurality of current collector circuits connected in parallel with the inverter via collector lines, wherein a plurality of strings of photovoltaic modules are connected in parallel with each current collector circuit via string lines. The method includes acquiring measured values of electrical variables and analyzing the measured values of the electrical variables for the presence of signs of an arc in the photovoltaic system using an analysis circuit and generating an arc signal which indicates the presence of an arc if the analyzed measured values meet predefined criteria. ... Sma Solar Technology Ag

03/30/17 / #20170092416

Inductor assembly comprising at least one inductor coil thermally coupled to a metallic inductor housing

An inductor assembly includes at least one inductor coil, a metallic inductor housing at least partially enclosing the inductor coil, and a potting material both contacting the inductor coil and the metallic inductor housing and thermally coupling the inductor coil to the metallic inductor housing. The inductor coil includes a bobbin made of electrically insulating material, and an inductor winding made of an electric conductor wound on the bobbin. ... Sma Solar Technology Ag

02/16/17 / #20170047739

Converter module for converting electrical power and inverter for a photovoltaic system having at least two converter modules

A converter module for converting electrical power by means of a converter circuit having at least one power electronic semiconductor switch driven in a clocked manner is disclosed. The converter module includes a housing, a first dc link circuit terminal, and a capacitance arranged in the housing and connected to the first dc link circuit terminal and to the converter circuit and serving for stabilizing a dc voltage present at the first dc link circuit terminal. ... Sma Solar Technology Ag

01/19/17 / #20170019027

Method for reducing spurious emissions from a voltage converter with clocked power switches

In order to reduce spurious emissions of a current converter or voltage converter having at least one power switch which is actuated with an actuating signal, wherein each actuating signal comprises switch-on pulses spaced apart from one another, and wherein pulse widths of the switch-on pulses are modulated in order to meet a specification for a current or a voltage in or at the current converter or voltage converter, the pulse widths are additionally varied more quickly and more strongly than is appropriate for meeting the specification in order to change the spectrum of the spurious emissions. In this context, changes to the pulse widths when they additionally vary compared to the pulse widths that would result only owing to their modulation to meet the specification are made on the basis of successive groups of changes which each extend over a predefined number of successive switch-on pulses and in which a sum of the changes is zero in each case. ... Sma Solar Technology Ag

01/12/17 / #20170012436

Inverter, in particular as part of a power generation network, and method

An inverter for converting dc power of a generator into grid-conforming ac power includes an inverter bridge circuit and a scanning circuit configured to trace at least one part of a characteristic curve of the generator to determine an mpp power value (pmpp). The scanning circuit is configured, in the case of a derating to a derated power (pred), to trigger a tracing of the characteristic curve with provision of a first power profile deviating from the derated power (pred) if an enable signal is present at the inverter, and to indicate a start and an end of the tracing by outputting a start signal and an end signal, respectively. ... Sma Solar Technology Ag








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