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Matches 151 - 200 out of 7,466

Document Document Title
WO/2018/094898A1
A smart boost conversion device with a long service life, comprising a high-frequency modulation unit (30), an inductance filter unit (40), and an inverter unit (50). The high-frequency modulation unit comprises an energy storage inducto...  
WO/2018/095946A1
The invention relates to a method (72) for operating a brushless electric motor (30) of a motor vehicle (2), particularly an electromotive refrigerant compressor (12), with two sub-motors (64, 66) arranged in sections and each comprising...  
WO/2018/094896A1
A smart sine-wave boost conversion device, comprising: an input rectifier unit (10), a high-frequency modulation unit (30), an inductance filter unit (40), an inverter unit (50), and a filter control unit (20). The high-frequency modulat...  
WO/2018/095782A1
The invention relates to a method for controlling a switching module based on thyristor switching elements. The invention relates, in particular, to a method for controlling at least one switching module wherein the switching module cons...  
WO/2018/094897A1
A smart sine wave buck conversion apparatus, comprising: an input rectifier unit (10); a high frequency modulation unit (30), comprising a first switch transistor (Q7) and a second switch transistor (Q10), a drain electrode of the first ...  
WO/2018/095324A1
Provided is a torque control method for a static frequency converter in a pulse commutation stage. The static frequency converter comprises a rectifier bridge (NB) and an inverter bridge (MB), wherein the inverter bridge (MB) is composed...  
WO/2018/092240A1
Wiring (WP1, WN1, WC1) is provided between the DC bus bars (PL1, NL1, CL1) of a first converter unit (U1) and the DC bus bars (PL2, NL2, CL2) of a second converter unit (U2). Wiring (WP2, WN2, WC2) is provided between the DC bus bars (PL...  
WO/2018/093620A1
A portable power converter includes a housing having a front surface and a rear surface, a socket disposed on the front surface and configured to conduct an input waveform, and a plug disposed on the rear surface and configured to conduc...  
WO/2018/091065A1
A modular multilevel converter (10) for use in a high voltage (ac/ac) traction system (20) is disclosed. The modular multilevel converter (10) comprises three phases (A, B, C), each phase comprising a number of series-connected cascaded ...  
WO/2018/091051A1
Embodiments herein describe a power converter in a wind turbine that includes a rectifier and an inverter. The rectifier includes a plurality of phase legs where each phase leg includes a plurality of full bridge cells configured to bloc...  
WO/2018/089173A1
An electric assembly is described herein. The electric assembly can include a housing having at least one wall that forms a cavity, where the housing is rated for subsea conditions. The electric assembly can also include at least one mot...  
WO/2018/082786A1
The invention relates to an installation (1) for transmitting electrical power comprising a unidirectional rectifier (2) which can be connected at the AC voltage end to a first AC voltage supply system (3), a self-controlled converter (6...  
WO/2018/074653A1
The present invention relates to a method for operating a semiconductor transformer by using an auxiliary power source and a DC/DC converter using the same, and a method for operating a semiconductor transformer by using an auxiliary pow...  
WO/2018/075636A1
Enhanced common mode current reduction in three-phase inductors, transformers, and motor drive systems. A motor drive system includes an iron core transformer, a common-mode transformer coupled to a three-phase motor, and a variable spee...  
WO/2016/015825A3
Disclosed are a display element of a converter, a method for operating a converter, and a converter. The converter includes an address encoding switch, in particular on the housing thereof; when the address encoding switch is actuated, a...  
WO/2018/070023A1
An on-load tap switching device according to an aspect of the present invention has a changeover switch and an insulating mediator. The changeover switch includes a semiconductor switch, and shifts the transformation ratio by switching t...  
WO/2018/067933A1
An AC power converter converts power from an AC power source to an AC load. A DC power holding source is coupled to an input half-bridge switch, a common half-bridge switch and an output half-bridge switch. A controller is coupled to at ...  
WO/2018/067843A1
Embodiments of the present disclosure relate to a heating, ventilating, air conditioning, and refrigeration (HVAC&R) system that includes a variable speed drive (52) configured to provide power to a motor (50) that drives a compressor (3...  
WO/2018/067839A1
Embodiments of the present disclosure relate to a heating, ventilating, air conditioning, and refrigeration (HVAC&R) system that includes a variable speed drive (VSD) (52) configured to supply power to a motor (50) configured to drive a ...  
WO/2018/067833A1
Embodiments of the present disclosure relate to a refrigeration system that includes a compressor configured to circulate refrigerant along a refrigerant loop, a motor (106-1, 106-2, 106-3) configured to drive the compressor, and a varia...  
WO/2018/061653A1
The present invention relates to an automotive electric power converting device that performs a phase difference operation, provided with a plurality of electric power converters, including a converter which converts received alternating...  
WO/2018/059672A1
The present disclosure relates to a method of power unbalance compensation in a direct AC-to-AC Modular Multilevel Converter (MMC) (1) having a three- phase side connected to a three-phase AC network L having a first fundamental frequenc...  
WO/2018/062261A1
The present invention maintains a power buffer function and reduces a distortion from a sinusoidal wave in the waveform of an input current, even if the waveform of a buffer current is distorted from a sinusoidal wave. A duty calculation...  
WO/2018/054543A1
The invention relates to a system and a method for operating a system, comprising a rectifier that can be supplied by an electric AC voltage supply system, an inverter that feeds an electric motor, and a DC-to-DC converter connected to a...  
WO/2018/049473A1
An electrical power distribution network, including a plurality of electrical power control apparatuses, each including : Signal conversion components in order to convert the received signal to have a desirable signal having a second fun...  
WO/2018/047044A1
A system for controlling and regulating the AC voltage level delivered to a load regardless of the varying input AC voltage is provided, the system comprises a high frequency AC series voltage regulator (102) coupled with a low frequency...  
WO/2018/043367A1
The objective of the present disclosure is to reduce power loss due to switching. A control unit (7) controls an inverter circuit (5) such that positive and negative voltages are applied alternately to a primary winding (19). During a fi...  
WO/2018/038423A1
A power supply apparatus according to various embodiments of the present disclosure comprises: a charger that regulates at least one of voltage and current of power supplied from a power supply source and supplies the power to an electro...  
WO/2018/036596A1
A method of controlling a wind turbine generator (1) comprising an electrical generator (10) and a power converter (12), the power converter (12) comprising an electrical switch (14a, 14b) that is configured to process electrical power p...  
WO/2018/037021A1
The present invention provides an apparatus and a method for reducing power consumption of a compressor. The invention applies a first operating voltage to the compression, then determines an operating power of the compressor at the firs...  
WO/2018/033214A1
The present disclosure relates to a method of decoupled modulation of a direct AC/AC MMC 1 between a first AC network L having a first waveform and a second AC network R having a second waveform, the MMC having a double-star topology wit...  
WO/2018/025307A1
An electric power control system (1000), provided with: a first AC/DC converter (5A); a second AC/DC converter (5B); a first switch (sw1) connected between the first AC/DC converter and a first power transmission line (2A) of a first ele...  
WO/2018/024680A1
The aim of the invention is to provide a simple and installation-space-optimized control of a so-called "intelligent glass pane". This aim is achieved by means of a method for controlling the intelligent glass pane (2) by controlling sai...  
WO/2018/020297A1
Apparatus (Frequency Decoupling Smart Transformer - FDST) and control method of self organized distribution grid segments/sections operation without new physical communication infrastructure, implemented by decoupling distribution grid s...  
WO/2018/019429A1
The invention relates to a drive system having a converter, comprising an inverter for feeding an electric motor and comprising a mains-fed rectifier, the direct-voltage-side connection of which provides an intermediate circuit voltage f...  
WO/2018/015398A1
The invention relates to a control apparatus for a refrigerator compressor having at least one two-phase AC asynchronous motor (K1, K2), having mains connection means (10) for connection to a preferably public voltage supply network whic...  
WO/2018/015023A1
The invention relates to a converter system and a method for operating a converter system with a feedback function, in particular a block-type feedback function, having at least the following: - an inverter (101), in particular a first i...  
WO/2018/011863A1
An inverter device 1 is provided with a converter circuit unit 11, an inverter circuit unit 12, and a current detection unit 13. The inverter device 1 is provided with: a calculation unit 14 that calculates a frequency command value on t...  
WO/2018/010785A1
A method of controlling AC power to drive at least one load, the method comprising: determining a power adjustment rate of 0% to 100% of a maximum AC power; identifying a predetermined number of semi-cycles of an AC power signal, the pre...  
WO/2018/006517A1
A method for detecting an instantaneous current in an intermediate DC link of an AC-DC-AC circuit and a locomotive. The method comprises: a current transformer synchronously collecting phase current signals Ia, Ib and Ic of three phases ...  
WO/2018/008371A1
The present invention ensures insulation between a metal member that supports a power semiconductor module, and an input/output end of the power semiconductor module. Disclosed is a power conversion device 10 wherein a bus bar 51 of a co...  
WO/2017/210279A1
The present disclosure provides methods and circuits of a smart cable that allows using parasitic inductances available in any cable that has at least two wires for power connection in order to provide both power connection and power con...  
WO/2017/204938A1
An ASD circuit includes an input, solid-state switch rectifier bridge, DC link, and DC link capacitor bank. A pre-charge circuit is coupled between the input and the DC link capacitor bank and includes pre-charge relays operable in an on...  
WO/2017/201209A1
Various examples are provided for soft switching solid state transformers and converters, and their operation and application. In one example, a soft switching solid state power transformer includes a high frequency (HF) transformer; fir...  
WO/2017/198410A1
The invention relates to a system (1) for generating a three-phase alternative voltage, having at least one gas turbine (2), at least one generator (3) driven by the gas turbine (2), at least one regulated direct acting inverter (4), by ...  
WO/2017/198042A1
A direct-current bus voltage fluctuation suppression method and control method for a dual-PWM current converter. The direct-current bus voltage fluctuation suppression method comprises the following steps: establishing a power balance eq...  
WO/2017/198268A1
Aspects of the present disclosure are generally directed to configurations of power conversion systems for wind turbine generators. For example, certain aspects are directed to a multi-rotor wind turbine. The multi-rotor wind turbine gen...  
WO/2017/194196A1
Converter system comprising an AC/DC converter and method for operating a converter system, wherein the DC-voltage-side terminal of the AC/DC converter feeds a series circuit, comprising a braking resistor and a controllable switch, in p...  
WO/2017/189055A1
Power-packet-switching circuits (and methods and systems) in which at least one port uses series-connected combinations of bidirectional switches to connect a link inductor (or transformer), with selectable polarity, to an outside line. ...  
WO/2017/174126A1
The invention relates to an electrical device (6) having a semiconductor circuit (7) which is designed for a high voltage and is arranged in a housing (8). The invention is characterized in that the housing comprises a plurality of housi...  

Matches 151 - 200 out of 7,466