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Matches 251 - 300 out of 6,636

Document Document Title
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...  
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...  
WO/2012/123365A3
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...  
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 ...  
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...  
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...  
WO/2012/104232A3
The invention relates to a stepping switch for voltage control, comprising semiconductor switch elements on a variable transformer having associated regulating windings. The stepping switch has a modular design, wherein each module compr...  
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...  
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 ...  
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...  
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...  
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...  
WO/2012/093009A3
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...  
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...  
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...  
WO/2012/084946A3
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...  
WO/2012/084389A3
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...  
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...  
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...  
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...  
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...  
WO/2012/078537A3
A control system for regulating a bus voltage used to power an electric shovel. The system includes a controller for controlling motions of the shovel and for providing a measurement of bus voltage of a bus. The system also includes a sh...  
WO/2012/076015A3
According to an embodiment of the present invention, a method of operating a wind turbine including a power generator, a generator/machine side converter connected to the power generator, a grid/line side converter connected to a power g...  
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...  
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...  
WO/2012/066283A3
A voltage regulator for regulation both of AC and of DC voltages, is provided in a regulator module (30) which uses a repetitive switching signal (32) to control a switch (36) allowing current to be supplied to a reservoir capacitor (42)...  
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...  
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...  
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...  
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...  
WO/2012/045602A3
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...  
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...  
WO/2012/045666A3
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
WO/2012/028839A3
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...  
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...  
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, ...  
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...  
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...  
WO/2012/013329A3
The invention relates to a current converter of the forward converter type for converting a three-phase primary voltage (U1, U2, U3) into a plurality of secondary voltages (ud1... udn), having a magnetic intermediate circuit that compris...  
WO/2012/016119A1
A load control device adapted to be coupled between an AC power source and an electrical load for controlling the power delivered to the load includes a power supply having an energy storage capacitor (C out) and a charge pump circuit (2...  

Matches 251 - 300 out of 6,636