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WO/2012/150962A1 |
Disclosed is apparatus and methodology for providing a capacitive voltage divider power supply. A plurality of full wave rectifiers each including a capacitor are coupled in series so that an applied AC source charges the capacitors in s...
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WO/2012/141609A1 |
The invention relates to electrical engineering and can be used for measuring an AC high voltage in sulfur hexafluoride unitized distribution devices (SF6-UDDs). The technical result of the invention consists in increasing the accuracy f...
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WO/2012/137210A2 |
An uninterruptible power supply device, and method of use thereof, including a multiple-input source AC converter for receiving an AC input voltage and a DC input voltage, an inverter including a combiner module for combining the input p...
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WO/2012/136043A1 |
A method for controlling an auxiliary source circuit of a two-wire dimmer. The auxiliary source circuit comprises: an auxiliary source capacitor (20) and a cutoff switch (30) constituting a series branch, and a chopper switch (10) parall...
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WO/2012/136042A1 |
An auxiliary power supply circuit of a two wire dimmer, comprising: an auxiliary source capacitor (20) and a cutoff switch (30) constituting a series branch, a chopper switch (10) parallel-connected to the series branch, and a control de...
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WO/2012/129844A1 |
An intelligent synthesis system for developing and testing a high-voltage frequency converter and an establishment method thereof relate to electric control and test technology fields. The system comprises a high-voltage frequency conver...
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WO/2012/126515A1 |
The invention relates to an electrical installation having a matrix converter (ΜU) and to a method for operating same. The matrix converter (ΜU) comprises a plurality of input terminals (E1, E2, E3), a plurality of outlet terminals (A1...
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WO/2012/122873A1 |
A shore-based variable frequency power supply system in port comprises a variable frequency power supply (C), a port high-voltage substation (A) and a ship power system (H). An input terminal of the variable frequency power supply is con...
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WO/2012/122870A1 |
A test power supply for a transformer comprises a high voltage frequency conversion test power supply (1), a middle boosting transformer (2), and a reactive compensation device. The high voltage frequency conversion test power supply (1)...
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WO/2012/122874A1 |
An H-bridge cascaded multi-level voltage sag generator (VSG) based on an insulated gate bipolar transistor (IGBT). The device is an energy feedback four-quadrant converter and is capable of implementing bi-directional flow of energy. An ...
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WO/2012/123663A1 |
The invention relates to a generating method implemented by a generating module (20) of an electrical network (1) of an aircraft, said electrical network (1) comprising a supply line (3) supplied by said generating module (20), a continu...
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WO/2012/123984A1 |
An object of the present invention is to provide an electric propulsion system capable of reducing a weight and a power loss. A generator connected to an engine supplies a generator voltage to the motor directly. The system has a torque-...
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WO/2012/124510A1 |
[Solution] A potential difference between both ends of a snubber capacitor (30) connected between intermediate direct current bus lines (4p, 4n) of an indirect matrix converter (1) is detected at the moment of input of a three-phase alte...
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WO/2012/123365A2 |
Disclosed in the present invention are a power generation unit driver, a power generation unit and energy output equipment in a power grid. The power generation unit driver includes a drive controller for generating a drive signal accord...
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WO/2012/111416A1 |
An embodiment of a matrix converter device for wind-power electricity-generation is provided with a matrix converter and a control unit. The matrix converter is controlled by the control unit so as to fully convert electricity generated ...
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WO/2012/107147A1 |
The invention relates to a system for charging at least one energy storing cell (5) in a controllable energy store (2) that is used to control and supply electric energy to an n-phase electric machine (1), wherein n ≥ 1. The controllab...
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WO/2012/107077A1 |
The invention proposes a power supply system (1) comprising a multiphase matrix converter (MU) and to a method for operating same, wherein the multiphase matrix converter (MU) has a plurality of input terminals (E1, E2, E3, E4), a plural...
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WO/2012/106549A2 |
A magnetic power storage system comprising a center magnetic plate having at least one magnet, the center magnetic plate affixed to a base plate and between a first push arm and a second push arm, first magnetic shields affixed to the fi...
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WO/2012/099551A1 |
The present invention relates to a method of generating various alternating current waveforms, at power level. The AC mains power supply is rectified, processed by various circuits, controlled by a control unit and inverted as required a...
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WO/2012/098875A1 |
This power conversion apparatus is provided with switching elements (Su, Sv, Sw, Sx, Sy, Sz), converts input alternating-current power supplied from an alternating-current power supply (6) into output alternating-current power at predete...
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WO/2012/097529A1 |
A fully controlled rectifier device includes a three-phase fully controlled rectifier bridge (A), a DC filter capacitor (C), a three-phase bridge inverter (B) and a central processing unit (CPU). Current transformers are provided at the ...
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WO/2012/093009A2 |
It is described an assembly for converting an assembly input AC voltage to an assembly output AC voltage, the assembly comprising: plural converters, each converter comprising a rectifier stage (129,229) for rectifying an input AC voltag...
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WO/2012/094306A1 |
A method and apparatus for providing multi-phase power. In one embodiment, the apparatus comprises a cycloconverter controller for determining a charge ratio based on a reference waveform; and a cycloconverter, coupled to the cycloconver...
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WO/2012/090634A1 |
The objective of the present invention is to provide a power conversion system for converting an alternating voltage to another alternating voltage with a small number of legs (3 or less for example). A power conversion system of the pre...
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WO/2012/090215A1 |
An auto engine comprises a rechargeable battery system or a kind of perpetual motion device which can produce infinite electricity to the engine without taking any fuel. The auto engine also comprises an auto power plant, a space voltage...
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WO/2012/084389A2 |
The invention relates to a power converter comprising several output phases (U, V, W) connected to an electric load and also comprising a filtering device connected to its output phases, the filtering device comprising a common‑mode in...
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WO/2012/083649A1 |
A ground power supply system for bullet trains includes a main power supply, transmission cables and field sockets. The field sockets include CRH (Chinese Railway High-speed) 1 field sockets, CRH2 field sockets, CRH3 field sockets, and C...
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WO/2012/083963A1 |
According to a method of the present invention, a method of operating a wind turbine comprising a power generator, a generator side converter connected to the power generator, a line side converter connected to a power grid through power...
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WO/2012/084946A2 |
There is proposed an electrical supply generator of the chopped type (300) for low‑voltage semi‑alternating loads intended to be powered by an alternating voltage, the generator comprising a full-wave rectifier block (33) linked acro...
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WO/2012/077348A1 |
A direct conversion circuit (100) of the present invention is provided with three alternating current switches (104) that are respectively connected between three alternating current input terminals (101) and an output terminal (102). Ea...
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WO/2012/072168A2 |
The present invention describes an electrical converter system for power supplies, comprising at least two identical individual modules connected in series, characterized in that each individual module has at least four internal switchin...
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WO/2012/067096A1 |
[Solution] In a converter (2), a first switch element (8rp) is connected to a bus bar (4p) in a laminated bus bar and an R phase of a three-phase AC power supply (9). A second switch element (8sp) is connected to said bus bar (4p) and an...
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WO/2012/067095A1 |
[Solution] Disclosed is an indirect matrix converter which has: a converter (2) connected to a three-phase alternating current power supply (11); an inverter (6) that controls an electrical actuator (21); and a pair of intermediate direc...
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WO/2012/067167A1 |
Provided is an AC-AC converter comprising an AC-DC converter that converts AC to DC and an inverter that converts DC to AC, and wherein: a first semiconductor switch series circuit, a second semiconductor switch series circuit, and a cap...
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WO/2012/055438A1 |
A converter station (12) in a direct current power system (10) connected between an alternating current power line (30) and a direct current power line (14) comprises a transformer (18), a converter (20) equipped with converter valves of...
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WO/2012/045666A2 |
A power supply converter unit is disclosed, in particular for an electrostatic precipitator, converting the frequency of alternating input supply (1) to high frequency alternating output (Ua, Ub) by rectifying the alternating input suppl...
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WO/2012/045602A2 |
The invention relates to a rectifier circuit having a rectifier unit (1), said rectifier unit (1) comprising a plurality of actuatable power semiconductor switches, the DC side thereof being connected to a capacitive energy storage circu...
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WO/2012/041147A1 |
A voltage conversion device comprises a resistor (R) and a transformer primary winding connected to a voltage protection element (D) in parallel wherein the resistor and the transformer primary winding are connected in series, or compris...
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WO/2012/041544A1 |
A power electronic converter (10; 70) is used in high voltage direct current power transmission and reactive power compensation. The power electronic converter (10; 70) comprises at least one converter limb (12, 14; 72) including first a...
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WO/2012/043465A1 |
Link voltages are measured by enhancing the tolerance and responsiveness to switching noises. A period drt⋅T0 is longer than a period dst⋅T0. Two intervals used by a unit voltage vector (V4) in the period drt⋅T0 are used as a first...
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WO/2012/041380A1 |
A power electronic converter (10) is used in high voltage direct current power transmission and reactive power compensation. The power electronic converter (10) comprises at least one converter limb (12, 14) including first and second te...
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WO/2012/034593A1 |
The present invention concerns a power supply arrangement (18) for a substation, where this power supply arrangement comprises a group of reactive voltage dividing elements (20, 22, 24) connected to a first AC power line (10) that transp...
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WO/2012/032196A1 |
The invention relates to a system that makes it possible to connect or disconnect polyphasic conversion stages (2a, 2b), including at least two back-to-back polyphasic conversion stages (2a, 2b) connected between a rotary electric machin...
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WO/2012/031787A1 |
The invention relates to a traction converter having a mains-side feed apparatus (2), a load-side self-commutated pulse converter (4) and an auxiliary operation converter (6), wherein this feed apparatus (2) has a multiplicity of primary...
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WO/2012/031435A1 |
A stabilization circuit for electronic transformer driven LED devices. The circuit is provided at an output of an electronic transformer driving circuit, which has a rectifier fed into a feedback-controlled oscillator circuit. An isolati...
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WO/2012/028839A2 |
A transformer based voltage optimization apparatus (201) configured for use as a component of an electrical circuit that comprises a load (202) comprises a first transformer arrangement (203) specifically configured with means to transfo...
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WO/2012/024959A1 |
A control method during zero-crossing operation of bridge arms in an uninterruptible power supply (UPS). The UPS comprises a rectifying bridge arm consisting of a first switching tube (Q1) and a second switching tube (Q2), a midline brid...
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WO/2012/025256A1 |
The invention relates to a drive system for a battery-operated vehicle. According to the invention, said drive system has a voltage intermediate circuit inverter (2) having two self-commutating converters (16, 18) which, on the DC side, ...
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WO/2012/022823A1 |
The invention relates to an electricity supply apparatus, an elevator system and a method for limiting the electricity consumption of an elevator system. The electricity supply apparatus (1) according to the invention is fitted to supply...
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WO/2012/020664A1 |
An indirect matrix converter couples a converter (2) to an inverter (6) via a positive bus line (4p) and a negative bus line (4n). The anode of clamp diode (28u) is connected to the positive bus line (4p), the cathode of clamp diode (28u...
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