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Patent Searching and Data


Matches 251 - 300 out of 6,825

Document Document Title
WO/2013/070094A2
A method for controlling a converter including a resonant circuit, where the converter is controlled such that control switches are switched into a first state at the occurrence of an event that is related to a dependent variable of the ...  
WO/2013/064229A3
The invention relates to a device and a method for applying a voltage to a plurality of silicon rods in a CVD reactor. In each case, a series circuit, in which the silicon rods can be used as resistors, at least one first, at least one s...  
WO/2013/064229A2
The invention relates to a device and a method for applying a voltage to a plurality of silicon rods in a CVD reactor. In each case, a series circuit, in which the silicon rods can be used as resistors, at least one first, at least one s...  
WO/2013/058808A2
In a transformer core and transformer, a wound transformer core is formed from magnetic steel strips that are wound into multiple rings of different widths and arranged to define a ring-like structure having a stepped, substantially circ...  
WO/2013/057399A3
The invention relates to a low DC voltage supply system (100) for at least one electronic communication device (3; 6) in a broadband over power line communication system, further comprising a broadband over power line coupler including a...  
WO/2013/056918A1
The invention relates to a power converter intended to control an electrical load (C) comprising a supply DC bus, a bus capacitor, a pre-charging circuit of the bus capacitor provided with a limiting resistor, a switched-mode power suppl...  
WO/2013/051392A1
This charging device (1A), to which a power conversion apparatus (11, 81, 3, 4, 5, 7, 9) that converts commercial power to DC power has been mounted, is provided with: a core frame (14) that mounts a power conversion apparatus that inclu...  
WO/2013/051475A1
This power converter (3) directly converts polyphase AC power into AC power, and is provided with: a conversion circuit which has multiple first switching means (311, 313, 315) which are connected to the R, S and T phases of the polyphas...  
WO/2013/051476A1
This power converter (3) directly converts polyphase AC power into AC power, and is provided with: a conversion circuit which has multiple first switching means (311, 313, 315) which are connected to the R, S and T phases of the polyphas...  
WO/2013/047236A1
The purpose of the invention is to, when outputting an AC voltage to an inductive load, reduce an effective power pulsation caused by odd-order harmonic components of the current flowing through the load. The modulation factor (k) of an ...  
WO/2013/043811A3
An uninterruptible power supply (UPS) system includes first and second busses, a first switching circuit configured to selectively couple an AC source to the first and second busses and a second switching circuit configured to selectivel...  
WO/2013/042266A1
This electric apparatus is provided with a switching power supply, a rectifying circuit, a pair of capacitive elements, and a load. The switching power supply has inputted thereto a direct current power supply voltage or an alternating c...  
WO/2013/041737A1
The invention relates to an electric power converter method and system with at least two converter units (14), which includes a control means (12) that establishes the maximum output current of the operational converter modules, as well ...  
WO/2013/043974A3
An airplane ground support system includes a multi-voltage power supply (20). This system includes an air conditioning module, a control module (22), and a power supply module which has an A.C. power input, at least one power output, wit...  
WO/2013/039404A1
The invention provides a device for operative connection between a subsea step out cable far end and subsea loads such as pumps, compressors and control systems, distinctive in that the device is a rotating frequency stepper device, more...  
WO/2013/037400A1
A dual mode voltage source converter (30) comprises first and second terminals (32,34) for connection in use to a first network (44a); at least one converter limb (36) extending between the first and second terminals (32,34) and having f...  
WO/2013/039415A1
The invention relates to the field of electrical engineering and is intended in particular for increasing reactive power and converting reactive power into active power. The technical result addressed by the invention consists in increas...  
WO/2013/035782A1
A power conversion device comprises a conversion circuit having bidirectionally switchable multiple-pair switching elements connected to each phase and converting an input AC power to an AC power. A first switching time is calculated tha...  
WO/2013/035783A1
A power conversion device comprises a conversion circuit having multiple-pair switching elements connected to each phase and converting an input AC power to an AC power. A first switching time is calculated that is the time required for:...  
WO/2013/035781A1
A power conversion device comprises a conversion circuit having bidirectionally switchable multiple-pair switching elements connected to each phase and converting an input AC power to an AC power. A first switching time is calculated tha...  
WO/2013/033801A3
A control method and system is described for home appliances which comprise one electric motor (7) having at least two coils. The coils of the electric motor (7) are combined in series or in parallel due to the input voltage (1) and are ...  
WO/2013/033089A1
A power converter circuit is coupled to an AC power input, a backup power input, a first capacitive element and a second capacitive element. The power converter circuit is configured to, in a line mode of operation and during a positive ...  
WO/2013/026179A1
Systems and methods for suppressing resonances in power converters are provided. A power converter (100) includes an input stage (101) configured to receive alternating current (AC), an output stage (102) configured to output alternating...  
WO/2013/026220A1
An inverter system control method and device, and an inverter system. The control method includes: detecting parameters of a transformer primary side (101), calculating an equivalent impedance voltage drop of the transformer according to...  
WO/2013/024034A3
A control system for controlling an operation of a hydroelectric turbine. The control system comprises a converter system to convert AC power, supplied by a generator connected to the turbine, and having a voltage and frequency that is a...  
WO/2013/024039A3
A hydroelectric turbine array system comprises an array of turbine systems and a supervisory controller. Each turbine system of the array comprises a hydroelectric turbine and a control system. The control system includes a converter sys...  
WO/2013/024034A2
A control system for controlling an operation of a hydroelectric turbine. The control system comprises a converter system to convert AC power, supplied by a generator connected to the turbine, and having a voltage and frequency that is a...  
WO/2013/023981A1
The invention relates to a method for operating a converter circuit (4) for converting multi-phase input-side phase voltages (Uu, Uv, Uw) and multi-phase input-side phase currents (Iu, Iv, Iw) into multi-phase output-side phase voltages ...  
WO/2013/024037A3
A control system for controlling an operation of a hydroelectric turbine. The control system comprises a converter system to convert AC power, supplied by a generator connected to the turbine, and having a voltage and frequency that is a...  
WO/2013/020998A2
It is described an arrangement for providing an AC current to a load for direct electrical heating, the arrangement comprising a AC-DC-AC converter cell (133, 433, 533, 633, 733), the converter cell having at least two converter input te...  
WO/2013/020998A3
It is described an arrangement for providing an AC current to a load for direct electrical heating, the arrangement comprising a AC-DC-AC converter cell (133, 433, 533, 633, 733), the converter cell having at least two converter input te...  
WO/2013/020544A1
The invention relates to a method for operating an electric motor in a generator mode, said electric motor being connected to at least three phases of a power supply network. An energy that is to be fed back into the power supply network...  
WO/2013/021205A3
The invention relates to the generation of electricity from flowing fluid and in the preferred embodiment to a horizontal axis turbine and generator assembly. The present invention is applicable to water turbines and the invention is des...  
WO/2013/013850A2
The invention relates to a switch mode power supply (9) which comprises a control for controlling a switch element and is connected to a DC link of a converter. Said switch mode power supply (9) comprises a startup-delay so that the cont...  
WO/2013/013850A3
The invention relates to a switch mode power supply (9), to a method for operating said power supply (9) and to the use of the thereof. Said switch mode power supply (9) comprises a control for controlling a control element and which is ...  
WO/2013/014334A3
The invention relates to an elevator system and also to an electricity supply device (1, 2, 3) for supplying electric power in the elevator system. The electricity supply device (1, 2, 3) comprises a controllable power output stage (4, 5...  
WO/2013/012418A1
A method and apparatus for power conversion. In one embodiment, an apparatus comprises a first means for converting a first current to a second current, wherein the first current or the second current is AC current having at least two ph...  
WO/2013/007783A2
The invention relates to a method for operating a first and a second electrical load in an alternating current network. The method can be operated in an optional first operating mode, in which the positive and negative half waves for eac...  
WO/2013/007268A3
According to an embodiment, a power generation system is provided comprising a power generator; a plurality of converter modules, each converter module having a DC link, wherein the DC link of each converter module is connected to the DC...  
WO/2013/007836A3
The invention relates to a method for controlling a cycloconverter (20), which is designed to a connect a first three-line network (30) to a second three-line network (31), wherein the cycloconverter (20) has six converter branches (32, ...  
WO/2013/007749A1
A wind power station comprises a wind turbine a generator and a frequency converter comprising a generator converter connected to the generator, an intermediate circuit connected to the generator converter and a grid converter connected ...  
WO/2013/007783A3
The invention relates to a method for operating a first and a second electrical load in an alternating current network. The method can be operated in an optional first operating mode, in which the positive and negative half waves for eac...  
WO/2013/006068A1
An inductively coupled power transfer receiver including a tunable circuit and a power supply circuit. The tunable circuit includes a power receiving coil in series with a first capacitance and first variable impedance connected in paral...  
WO/2013/001496A2
A wind turbine for generating and feeding electric energy to an electric power grid, the wind turbine (1) having a blade assembly (5); an electric machine (6) having a stator (10), and a rotor (11) connected to the blade assembly (5) to ...  
WO/2013/000034A1
A system for reducing power consumption in a power supply circuit including: a transformer including: a core; a first winding including a first end and a second end of a first wire wound on the core; a second winding including a first en...  
WO/2013/001496A3
A wind turbine for generating and feeding electric energy to an electric power grid, the wind turbine (1) having a blade assembly (5); an electric machine (6) having a stator (10), and a rotor (11) connected to the blade assembly (5) to ...  
WO/2012/176327A1
The purpose of the present invention is to provide a power conversion device having the reduced numbers of reactors and IGBTs and being capable of obtaining variable amplitude and variable frequency power with a simple configuration and ...  
WO/2012/175295A1
Short circuit safe rectifier stage for a subsea power grid It is described a rectifier stage (251) for converting an input AC voltage to an output voltage, the rectifier stage comprising: a first AC input terminal (255); a second AC inpu...  
WO/2012/175294A3
Rectifier stage for a subsea power grid It is described a rectifier stage (451) for converting an input AC voltage to an output voltage, the rectifier stage comprising: a first AC input terminal (455); a second AC input terminal (457), w...  
WO/2012/177498A3
A variable frequency drive system including an alternating current electrical power source, an alternating current motor and a variable frequency drive connected to the power source and the motor. The variable frequency drive provides el...  

Matches 251 - 300 out of 6,825