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Matches 1 - 50 out of 7,322

Document Document Title
WO/2019/007778A1
The invention relates to an arrangement for equalizing voltage drops in a power supply mains having a first mains supply and a second mains supply, wherein the arrangement comprises at least one first converter system and one second conv...  
WO/2019/002709A1
The voltage converter (104) includes first and second busbars (106, 108), at least one power module (110) including at least one pair of first and second controllable switches (112, 14). One capacitor is provided for each power module (1...  
WO/2019/002030A1
The present disclosure relates to a Direct Electrical Heating, DEH, power system (1-1) for delivering power to at least one DEH load, wherein the DEH power system (1-1) comprises: a multi-winding input transformer (3), a rectifier (5) co...  
WO/2018/234330A1
The invention relates to the on-board electric power network architecture of a vehicle cabin using domestic devices, in particular of an aircraft cabin, comprising primary networks (11, 12) connected in parallel to a single domestic netw...  
WO/2018/235257A1
First to third phase converters (2R, 2S, 2T) convert first to third phase AC voltages to DC voltages, respectively. First to third DC positive bus lines (PL1, PL2, PL3) and first to third DC negative bus lines (NL1, NL2, NL3) are electri...  
WO/2018/233819A1
The present disclosure relates to a method of controlling a three-to-single phase power converter 1 connected to a three-phase AC grid 5a and a single-phase AC grid 5b. The method comprises measuring a DC-link voltage uDC,meas of the con...  
WO/2018/233822A1
The present disclosure relates to a method of an estimator (20) of an inner control loop (21) controlling a three-to-single-phase converter (1) connected to an AC power grid (3) via a transformer (2). The method comprises obtaining a val...  
WO/2018/234954A1
A power supply, including a primary pre-converter, coupled to supplying mains, configured to receive an AC voltage at low frequency and output a high DC voltage, and further configured to receive the high DC voltage and to output the alt...  
WO/2018/231054A1
Between individual phases of a three-phase alternating current source, AC to DC converters are provided. The DC outputs of the converters are switched in parallel. The DC output may have the same effective voltage as the input, or higher...  
WO/2018/229915A1
A power conversion device capable of being configured to be small in size and inexpensive is obtained in such a way that: a plurality of converter cells (20-1 to 20-N) are provided, which are each equipped with a pair of primary side ter...  
WO/2018/225410A1
The present invention is provided with: a plurality of power conversion cells 101; and a control device 300 for controlling the power conversion cells. The power conversion cells each have: a transformer 131; a primary converter 111 and ...  
WO/2018/224596A1
The invention relates to a method for operating a wind turbine (100) or a wind farm (112) comprising a plurality of wind turbines (100) for exchanging electric power between the wind farm and an electrical supply network, each wind turbi...  
WO/2018/224815A1
The invention provides a power converter for converting a three-phase alternating current (AC) supply to a direct current (DC) output, the power converter comprising: a first selector configured to select one of the highest, the second h...  
WO/2018/220592A1
An apparatus is provided for bypassing a load current going through an AC- AC series voltage regulator under overcurrent condition, comprising: an AC-AC invertor; an AC semiconductor bypass switch; and a bypass control. The AC-AC inverto...  
WO/2018/220777A1
A control device (14) of a stabilized power supply device (1) is equipped with: a comparator (35) for comparing the highs and lows of a voltage command value (Vir) and a triangle wave signal (Cu), and on the basis of the comparison resul...  
WO/2018/215071A1
The present invention discloses a method for providing an energy storage to an electrical power grid. The method comprises connecting an energy storage system (ESS), in series with a transmission line of an electrical power grid, or in s...  
WO/2018/211334A1
A power converter for beat tracing applications is disclosed. The power converter includes a controller configured to control an input switching stage. The power converter also includes an output filter, the output filter electrically co...  
WO/2018/206085A1
Certain embodiments of the present invention relates to a method for controlling operation of a parallel converter system (100). The parallel converter system (100) includes multiple parallel power converters (1014,10N4), and each of the...  
WO/2018/198053A1
An apparatus is provided for minimizing the peak power demand on an inverter in a power supply with one or more switched reactive loads comprising an AC semiconductor bypass switch connected in parallel with the inverter and a bypass con...  
WO/2018/192291A1
An energy supply system and method. The system comprises: a high-voltage isolation transformer circuit (10); a low-potential power supply (11) connected to a first end of the high-voltage isolation transformer circuit; and n interlayer e...  
WO/2018/189760A1
Refrigerating machine (10) comprising: - a refrigeration circuit (11) comprising a compressor (12), - an asynchronous electric motor (13) connected to the compressor (12) to operate it; - at least one fan (14a, 14b) coupled to a heat exc...  
WO/2018/189036A1
A thyristor bridge (28, 34) of an electrical converter (12) is connected to at least one DC link (30) and comprising at least one phase leg (40) for each output phase (R, S, T) and each phase leg (40) being composed of two series-connect...  
WO/2018/186828A1
A downhole drilling system is disclosed. The downhole drilling system may include a pulse-generating circuit electrically coupled to a power source configured to provide an alternating current at a frequency and an input voltage, the pul...  
WO/2018/182432A1
The present invention relates to a AC-AC converter, which has particular relevance to a converter for an inductive or capacitive (wireless) power transfer system. More specifically, the current invention discloses an AC-AC converter comp...  
WO/2018/175824A1
An apparatus includes a first winding and a second winding on a core and having first taps coupled in common to a first node of an inverter circuit. The apparatus further includes a switching circuit configured to selectively couple a se...  
WO/2018/169520A1
A single-stage transmitter for wireless power transfer is provided. The transmitter includes a rectifier stage and an inverter stage sharing a first phase leg. The rectifier stage further includes a rectifying leg including two diodes co...  
WO/2018/161746A1
The present invention relates to the field of biomass preservation apparatuses. Provided are a device (100) and system (200) for generating a low frequency alternating electric field, and a signal conditioning method. The device for gene...  
WO/2018/165079A1
A power distribution system including a first power module and a second power module. The first power module including a first power input receiving an input power, a first transformer receiving the input power and outputting a transform...  
WO/2018/161745A1
The present invention relates to the field of biomass preservation apparatuses. Provided are a device (100) and system (200) for generating a low frequency alternating electric field, and a signal conditioning method. The device for gene...  
WO/2018/159026A1
[Problem] To provide a power supply control device, a power conversion system, and a power supply control method that enable a power conversion device that performs AC-AC conversion on the output of a multi-phase alternating-current powe...  
WO/2018/159027A1
[Problem] To provide a power supply control device, power supply control system, and power supply control method with which a power conversion device that has a resonant circuit disposed on an output side of a matrix converter that uses ...  
WO/2018/159552A1
This power supply substrate (20) is provided with: a first power generation circuit (24) which generates a first three-phase output power on the basis of input alternating current power from a three-phase four-wire alternating current po...  
WO/2018/159551A1
According to the present invention, a power transmission device is for transmitting power to at least one code demodulator (4A) via a transmission path (3), wherein a code modulator (2A) is provided with: a code modulation circuit (23A) ...  
WO/2018/149041A1
A permanent magnet synchronous motor drive system power converter that does not employ an electrolytic capacitor, and a control method thereof. The power converter comprises a single-phase rectifier circuit unit (A) connected to a power ...  
WO/2018/148998A1
Provided are a circuit and liquid crystal display device for reducing power consumption of a power supply. The circuit comprises: a transformer (T1), wherein a secondary drive winding (A) of the transformer (T1) has a first output end (3...  
WO/2018/146567A1
Control of grid voltage in a power grid. A power transformer (10) converts alternating current (AC) electrical power at a higher voltage on the primary leads to AC electrical power at a lower grid voltage on the secondary leads. An auxil...  
WO/2018/129824A1
Provided is a smart half-bridge modified-wave voltage conversion circuit based on PFC interleaved flyback, comprising: an input rectifier filter unit (10); a PFC boost unit (20); an interleaved-flyback isolation transform unit (30), comp...  
WO/2018/129833A1
Provided is a smart sine-wave voltage conversion circuit based on MOS tube full-bridge rectification, comprising an alternating-current input unit (10), a MOS tube full-bridge rectifier unit (20), a PFC boost unit (30), a CLC filter unit...  
WO/2018/132342A1
Systems and methods for operating a power converter are provided. A DC to AC converter can include an inner converter and an outer converter. The inner converter can include an isolation transformer a first plurality of switching devices...  
WO/2018/129834A1
Provided is a smart modified-wave voltage conversion circuit based on MOS tube full-bridge rectification, comprising an alternating-current input unit (10), a PFC boost unit (30), an inverting phase-inversion unit (50), and a MOS tube fu...  
WO/2018/129835A1
A Vienna PFC-based smart half bridge sine wave voltage conversion circuit, comprising: an input unit (10), a Vienna PFC boost unit (20), and a half bridge inversion unit (30). The Vienna PFC boost unit comprises a boost inductor (L2), a ...  
WO/2018/129832A1
A Vienna PFC-based smart half bridge modified wave voltage conversion circuit, comprising: an input unit (10); a Vienna PFC boost unit (20), comprising a boost inductor (L2), a first switch transistor (Q3), a first diode (D1), a second d...  
WO/2018/126554A1
A smart correction wave voltage conversion circuit based on PFC, full bridge, and half bridge, comprising: an input unit (10), a PFC boost unit (20), a full bridge isolation transformation unit (30), and a phase inversion unit (40). The ...  
WO/2018/126555A1
A smart sine wave voltage conversion circuit based on PFC, full bridge and half bridge, comprising: an input unit (10); a PFC boosting unit (20); a full bridge isolation transformer unit (30), comprising a first switch tube (Q6), a secon...  
WO/2018/127960A1
Provided is a power conversion device with which overvoltage can be prevented during acceleration and during constant-speed operation, and deceleration at a desired deceleration rate is possible during deceleration. The power conversion ...  
WO/2018/128812A1
Power converters for use in wind turbine systems are included. For instance, a wind turbine system can include a full power generator having a stator and a rotor. The generator is configured to provide a low voltage alternating current p...  
WO/2018/128858A1
Systems and methods for grounding power generation systems with silicon carbide MOSFET power converters are provided. A power generation system can include a power generator comprising a multiphase rotor configured to generate multiphase...  
WO/2018/128856A1
Systems and methods for grounding power generation units with silicon carbide MOSFET power converters are provided. A power generation unit can include a power generator configured to generate multiphase alternating current power at a fi...  
WO/2018/128819A1
Power converters for use in wind turbine systems are included. For instance, a wind turbine system, can include a wind driven doubly fed induction generator having a stator and rotor. The stator is configured to provide a medium voltage ...  
WO/2018/120483A1
A PFC interleaved flyback full bridge based intelligent sine-wave voltage conversion circuit, comprising an input unit (10); a PFC boosting unit (20); an interleaved flyback isolating transformation unit (30) comprising a first switching...  

Matches 1 - 50 out of 7,322