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WO/2013/110273A1 |
A control system for one or more power stacks in a power converter is disclosed, each power stack comprising a plurality of electronic switches, said control system comprising one or more controllers, wherein a distributed clock signal f...
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WO/2013/112609A1 |
An apparatus for switch wear leveling includes a switching module 202 that controls switching for two or more pairs of switches in a switching power converter 104, based on a duty cycle control technique and closes and opens each switch ...
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WO/2013/104582A2 |
The invention relates to a method of control implemented in a power converter and which makes it possible to determine the angles (θ1, θ2,) of the rotors (R1, R2) of two permanent-magnet synchronous electric motors (Mot1, Mot2) connect...
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WO/2013/104043A1 |
The present invention relates to electric energy generation equipment comprising a basic circuit formed by a rectifier (10), for example, an AC/DC converter connected in series to an inverter (12), for example, a DC/AC converter, and a b...
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WO/2013/095757A1 |
Embodiments described herein provide a power delivery system, as well as a method of configuring the power delivery system. The power delivery system includes two or more rectifiers electrically coupled to an AC power source and configur...
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WO/2013/090852A2 |
In at least one embodiment, an electronic system adapts current control timing for half line cycle of a phase-cut input voltage and responsively controls a dimmer current in a power converter system. The adaptive current control time and...
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WO/2013/090112A2 |
A system and method for detecting input phase loss in an adjustable speed drive (ASD) includes an input unit to detect operating data from the ASD. The operating data includes a DC link current of the ASD. The system also includes a stat...
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WO/2013/083761A2 |
The invention relates to an asynchronous motor unit comprising a frequency converter for regulating the asynchronous motor (7). The frequency converter comprises an input‑side, uncontrolled bridge rectifier (2), a DC voltage intermedia...
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WO/2013/082860A1 |
An onshore power system for a wharf ship, comprising a high voltage variable frequency power supply device (1), a high voltage junction box (2), a high voltage cable reel (3) and a shipborne transformer substation (4); the high voltage v...
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WO/2013/080744A1 |
A matrix converter according to an embodiment is equipped with: a power conversion unit which has multiple bi-directional switches; a control unit for controlling the power conversion unit; and a current detection unit for detecting a cu...
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WO/2013/079739A1 |
The invention relates to a system and method for reducing losses in parallel transformer systems in distribution centres. The method comprises: measuring the total load capacity SL of the parallel transformers (10, 10') of the distributi...
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WO/2013/079170A1 |
A method is specified for exchanging power between a multi-phase AC voltage system (10) and an electrical subscriber (4, 6, 8) via a unipolar voltage intermediate circuit (16), wherein a multi-phase inverter (18) connected to the AC volt...
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WO/2013/079962A2 |
A voltage optimisation apparatus for controlling output voltage of an alternating current electricity supply is disclosed. The apparatus includes input and output terminals and a transformer reducing or increasing the voltage to an optim...
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WO/2013/078763A1 |
A high voltage frequency conversion power supply device comprises a high voltage incoming cabinet and a transformer. A high voltage cable enters the high voltage incoming cabinet, and leaves same and enters the transformer. The high volt...
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WO/2013/081995A2 |
A power supply with a multi-bridge topology configured to provide multiple different bridge topologies during operation. The power supply includes a plurality of half-bridge circuits connected to a controller. The controller can selectiv...
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WO/2013/076937A1 |
This AC conversion circuit converts a single-phase AC input voltage with a given frequency (f0) to a three-phase AC output voltage with a lower frequency (f1). This AC conversion circuit is provided with the following: a switching unit (...
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WO/2013/074358A1 |
A power converter includes an active front end (AFE) that is coupled by a dc link stage to a plurality of H-bridge inverters. One or more multi-phase electromagnetic energy conversion devices, such as transformers or electric machines, w...
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WO/2013/072908A1 |
Method of conversion of high DC voltage to pulsating AC voltage and a converter using the method, wherein AC voltage is generated by a high frequency fixed generator, the voltage is transmitted by capacitive coupling (11, 12, 13, 14) to ...
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WO/2013/074109A2 |
A monolithic DC to DC converter, provides a semiconductor substrate, a surface FET formed on the semiconductor substrate that modulates currents across a surface of the semiconductor substrate, and a toroidal inductor with a magnetic cor...
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WO/2013/067967A1 |
A semiconductor electricity converter is provided. The semiconductor electricity converter comprises: an AC input module, for converting an input AC electric energy into a light energy, the AC input module comprising a plurality of semic...
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WO/2013/067800A1 |
A megawatt direct drive type squirrel-cage asynchronous generator AC-DC-AC wind generation system with a medium-voltage squirrel-cage asynchronous generator as a wind generator comprises a squirrel-cage asynchronous generator, a megawatt...
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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 ...
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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...
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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...
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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...
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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...
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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...
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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...
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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 ...
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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...
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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 ...
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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...
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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...
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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...
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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...
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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:...
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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...
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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 ...
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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...
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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...
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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...
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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 ...
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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...
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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...
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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...
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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...
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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...
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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 ...
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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...
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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 ...
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