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Matches 1 - 50 out of 7,152

Document Document Title
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...  
WO/2017/176058A1
The present invention relates to an RF wireless power transmission system provided with an array antenna, and more specifically, provided is an RF wireless power transmission system provided with an array antenna for remotely charging a ...  
WO/2017/167404A1
There is provided a method and apparatus for controlling harmonics. For each device in an array of devices, a level of harmonic control is acquired to apply to an alternating current voltage powering the device. The level of harmonic con...  
WO/2017/171182A1
The present invention relates to a converter-driving device in a wind power generation system, a converter-controlling device in a wind power generation system, a switching element module-driving device in a wind power generation system,...  
WO/2017/163451A1
[Problem] To provide a heat pump device capable of avoiding resonance of a power supply while suppressing an increase in the number of components, installation space, and cost. [Solution] A heat pump device is equipped with: a compressor...  
WO/2017/164450A1
The present invention relates to an active phase control method for tracking a maximum output and a wave power generation system for supporting the same. Disclosed is a wave power generation system comprising: a linear generator coupled ...  
WO/2017/160098A1
The present invention relates to a switching power supply apparatus and, particularly, to a method and an apparatus for lowering the electromagnetic interference (EMI) of a power supply apparatus by reducing the noise generated by a rect...  
WO/2017/153002A1
The invention relates to a valve train (10) that is in particular suited for gas valves (11) having safety shut-off function, comprising an electric motor (12), in particular a stepper motor, that opens, and also closes if need be, the v...  
WO/2017/153096A1
The invention relates to an energy recovery rectifier device (16), in particular for an industrial plant (2), for connection to an AC system (8), comprising an energy recovery rectifier (24) and a buffer capacitor (46) that is connected ...  
WO/2017/155693A1
A wireless power transfer adapter is provided. The wireless power transfer adapter comprises a receive coil configured to receive wireless power from a wireless power transmitter at a first frequency associated with a first wireless powe...  
WO/2017/147674A1
The present application to a patent for an invention relates to an electronic power switch for use in particular in the electronic and electrical fields. More specifically, the switch consists of a semiconductor for switching or re-energ...  
WO/2017/144430A1
The present invention provides a modular multilivel converter and a power electronic transformer, the modular multilevel converter comprising: a low- frequency AC to DC conversion module, comprising three branch circuits connected in par...  
WO/2017/138821A1
The present invention relates to a current multiplier primarily in the field of power conversion. The invention relates to a controlled current multiplier with a resonant winding to assist with, for example, power conversion. In particul...  
WO/2017/134293A1
The present invention provides a power conditioning module (10) for connection between an AC power supply (16) and a load (24), comprising an AC power supply input (14) for connection to the AC power supply (16), whereby the AC power sup...  
WO/2017/127957A1
A transformer with output being a resonant loop. The output loop of the transformer is the resonant loop. A secondary winding (L2) of the transformer is connected in series with a capacitor (C2) and then is connected with a load (ZR), an...  
WO/2017/129766A1
An electrical converter system (10) comprises an electrical converter (12) for converting an input voltage into a converter output voltage (20); a transformer (14) interconnected with the electrical converter (12) at a secondary side (28...  
WO/2017/128499A1
A four-port power electronic transformer based on a hybrid modular multilevel converter, being constituted by a hybrid modular multilevel converter (MMC) (1), DC/DC converters (2) and an inverter (3). Each of the DC/DC converters compris...  
WO/2017/127856A1
The invention relates to a circuit arrangement for a frequency converter consisting of a passive, network-side EMC filter and an active part. The active part functions as a current source inverter (CSI) and consists of: a) three AC capac...  
WO/2017/127352A1
A system (2) for providing power to a power grid (14) includes a generator (12) configured to output a first voltage associated with a first set of power characteristics. The system (2) includes a power conversion system (16) including a...  
WO/2017/126086A1
A power conversion device (50) is equipped with a printed wiring board (7) that is provided with: an alternating current power supply input section (9), to which alternating current power is inputted; a converter circuit section that con...  
WO/2017/125769A1
The present invention solves the problem of in rush current during precharging operation in Active front end frequency converters by using controlled power switching elements (301) connected to line to line voltage and in series with DC ...  
WO/2017/125154A1
A filtering method and arrangement for a system comprising a regenerative frequency converter and a motor, which regenerative frequency converter has an intermediate DC circuit comprising positive and negative pole and which regenerative...  
WO/2017/117723A1
A driving circuit for supplying a LED-stream with at least one LED, the circuit comprises an input unit (1) configured to boost an input voltage (VIN), a converting unit (2), configured to convert the boosted input voltage (VBUS) into a ...  
WO/2017/117069A1
An electrical power restoration system (220) for a circuit assembly (212) having a circuit breaker (216), an electrical load (218) and a circuit conditioner (234) (e.g., a UPS) includes a circuit controller (236) that is positioned along...  
WO/2017/108905A1
A device (1) for managing the power supply voltage (Val) deriving from an electrical network is described; the device comprises means (4) having at the input said supply voltage of the electric network and configured to limit the peaks o...  
WO/2017/108046A1
A power dissipation system for a power converter of a wind turbine generator. The power dissipation system comprises at least a first dissipation module and a second dissipation module, each of the dissipation modules including a switch ...  
WO/2017/112606A1
A power conversion system includes one or more power conversion devices coupled to a grid connection. Each of the power conversion devices includes a power converter for converting a first multiphase current provided by the grid connecti...  
WO/2017/099628A1
The invention relates to the field of electrical engineering and can be used for keeping an ac voltage within set limits. An ac voltage normalizer comprises input terminals and output terminals, a transformer with a primary winding and a...  
WO/2017/094047A1
A power conversion device outputs an AC power having a voltage different from an input voltage and is characterized by: having at least three units to which phase voltages are respectively applied; having a plurality of cell converters i...  
WO/2017/095474A1
A ripple monitoring circuit may generate information indicative of a failing component in a power supply. At least one input may receive a ripple signal from the power supply that has a ripple component. A quantization circuit may repeat...  
WO/2017/090174A1
When a first voltage detector (4a) develops a fault, a control circuit (7) of an uninterruptable power supply device controls an inverter (3) in synchronization with the output signal (VI2D) of a second voltage detector (4b), matches the...  
WO/2017/084905A1
A method for estimating a fundamental component (A) of an AC voltage ( V pcc ) comprises: receiving a timely varying measurement signal of the AC voltage ( V pcc ); parametrizing a fundamental component (A) of the AC voltage ( V pcc ), t...  
WO/2017/067669A1
The invention relates to a system, comprising a network, in particular an electrical supply network, a filter, and one or more drives, wherein the filter is connected on one side, in particular on an input side, to the network and on the...  
WO/2017/061981A1
A drive system includes a current sensor configured to generate a first current signal representative of a current flowing in one or more electrical devices electrically coupled together through a power supply bus, a power output bus, an...  
WO/2017/062381A1
The present disclosure relates to power management apparatuses and systems utilizing synchronous common coupling. A power management apparatus may comprise a synchronous common coupling, a plurality of ports, and a plurality of electrica...  
WO/2017/062365A1
A reconfigurable converter includes a power circuit receives a direct current (DC) power signal and provides an alternating current (AC) output signal across at least three phases. The power circuit comprises a plurality of legs, each le...  
WO/2017/058763A1
A driver for a circuit with a capacitive load, is disclosed, including a power converter to receive an input voltage and generate a clean folded waveform as an output. An unfolding stage referenced to the input voltage is configured to r...  
WO/2017/056209A1
In this uninterruptible power supply device, a first converter (2) for generating direct-current voltage and a second converter (5) for regenerating electric power are separately provided, and bus bars (B1-B3) are used to connect direct-...  

Matches 1 - 50 out of 7,152