| Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663) |
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| 12/29/2009 | US7638986 Control system for static VAR compensator |
| 12/29/2009 | US7638893 Method for operating a wind park |
| 12/24/2009 | US20090319091 Methods, circuits, and computer program products for disabling of electrical appliances during cold load pickup |
| 12/24/2009 | US20090319089 Connection apparatus for parallel running generators |
| 12/24/2009 | US20090316446 Transmission system |
| 12/24/2009 | US20090315405 Connection apparatus for parallel running generators |
| 12/24/2009 | US20090315403 Power supply system, vehicle provided with the same, temperature rise control method of power storage device, and computer-readable recording medium with program recorded thereon for causing computer to execute temperature rise control of power storage device |
| 12/24/2009 | US20090315400 Method of load shedding to reduce the total power consumption of a load control system |
| 12/24/2009 | US20090315399 Semiconductor device |
| 12/23/2009 | WO2009153696A1 Harmonic compensation circuit and method for an led light unit |
| 12/23/2009 | WO2009153657A1 Power system |
| 12/23/2009 | WO2009152840A1 Regulation method for a high voltage dc transmission plant with dc link and self-commutated inverters |
| 12/23/2009 | WO2009083640A3 Fault situation processing arrangement of a load distribution system of a local electric power transmission network |
| 12/23/2009 | EP2136465A1 Inverter realized by a bridge circuit comprising slow and fast clocked switches |
| 12/23/2009 | EP2136450A1 Power system |
| 12/23/2009 | EP2136449A1 Solar power plant |
| 12/23/2009 | EP2135349A1 Method for operating a wind energy system in case of overvoltage in the grid |
| 12/23/2009 | CN201369702Y Digital reactive power compensation excitation regulator |
| 12/23/2009 | CN201369575Y Wind power dispatching decision support device |
| 12/23/2009 | CN201369574Y Excitation-free adjustable capacity circuit for transformer substation power compensation |
| 12/23/2009 | CN201369573Y Switching controller of condenser bank |
| 12/23/2009 | CN201369572Y Three-phase controllable electric controller |
| 12/23/2009 | CN201369571Y Automatic compensation distribution transformer |
| 12/23/2009 | CN201369570Y Low-voltage power line carrier impedance adaptation filter |
| 12/23/2009 | CN201369569Y High voltage dynamic reactive power compensation device |
| 12/23/2009 | CN201369568Y Electric shock protective device |
| 12/23/2009 | CN201369567Y Dynamic braking power supply device |
| 12/23/2009 | CN201369559Y Comprehensive control device for power grid voltage |
| 12/23/2009 | CN201369513Y Novel power-saving intelligent automatic control cabinet |
| 12/23/2009 | CN201368896Y Zero-crossing detection circuit |
| 12/23/2009 | CN101611535A Method for limiting damage to a converter having a power semiconductor in the case of a short circuit of an intermediate direct current circuit |
| 12/23/2009 | CN101610038A Photovoltaic grid-connected inverter of Boost and Buck cascade and control method thereof |
| 12/23/2009 | CN101609993A Self-adaptive leading time realizing method for synchronization function of measure and control device |
| 12/23/2009 | CN101609992A Converter for low-voltage traversing double-fed wind driven generator |
| 12/23/2009 | CN101609991A Three-phase load transfer device |
| 12/23/2009 | CN101609990A Intelligent three-phase electricity-saving protection controller |
| 12/23/2009 | CN101609989A System for calculating power supply abundance of urban power network |
| 12/23/2009 | CN101609988A High-capacity power transmission method and high-capacity power transmission system |
| 12/23/2009 | CN101609987A Joint coordination method for master-station automatic voltage control and plant-station voltage reactive power control |
| 12/23/2009 | CN101609986A Multilevel joint coordination automatic voltage control method based on decision trees |
| 12/23/2009 | CN101609985A Photovoltaic power station with 15 KW and below and commercial power manual switching circuit |
| 12/23/2009 | CN101609984A Fast aided modeling method for supervisory control and system |
| 12/23/2009 | CN101609974A Electrical control circuit of air compressor |
| 12/23/2009 | CN101609943A Three-phase intelligent energy-saving protection control socket |
| 12/23/2009 | CN101609942A Intelligent energy-saving protection control socket |
| 12/23/2009 | CN101609941A Single phase intelligent electricity-saving protection control socket |
| 12/23/2009 | CN101609480A Inter-node phase relation identification method of electric system based on wide area measurement noise signal |
| 12/23/2009 | CN101609454A Data storing and submitting method and intelligent equipment thereof |
| 12/23/2009 | CN101609112A Node phase relation identification method of electric system based on wide area measurement noise signal |
| 12/23/2009 | CN100573392C Power flow controller responsive to power circulation demand for optimizing power transfer |
| 12/22/2009 | US7635967 Generator systems and methods using timing reference signal to control generator synchronization |
| 12/22/2009 | US7635965 Electric power king |
| 12/22/2009 | US7635925 Analog combination regulator |
| 12/22/2009 | CA2280383C Control arrangement and method for power electronic system |
| 12/17/2009 | WO2009152534A2 Electrical demand controller |
| 12/17/2009 | WO2009150413A1 Management system for drilling rig power supply and storage system |
| 12/17/2009 | WO2009150397A1 An electrical generator network and a local electrical system |
| 12/17/2009 | WO2009149755A1 A plant for transmitting electric power |
| 12/17/2009 | WO2009149750A1 A plant for transmitting electric power |
| 12/17/2009 | WO2009149743A1 A voltage source converter |
| 12/17/2009 | WO2009083446A3 Apparatus and method for controlling reactive power from clusters of wind turbines connected to a utility grid |
| 12/17/2009 | US20090309421 Power compensator and method for providing a black start with that compensator |
| 12/17/2009 | US20090309419 Method for Prioritizing Load Consumption Within a Notebook Computer |
| 12/17/2009 | US20090309418 Semiconductor integrated circuit |
| 12/17/2009 | DE112008000321T5 Stromversorgungssystem mit mehreren Generatorsätzen Power supply system with multiple generator sets |
| 12/17/2009 | DE102008028139A1 Electrical network i.e. three-phase electrical network, managing method for coupling power station with local network, involves increasing or decreasing load current in branches by changing current supplied to superconductive secondary coil |
| 12/17/2009 | CA2727370A1 A plant for transmitting electric power |
| 12/17/2009 | CA2727367A1 A plant for transmitting electric power |
| 12/17/2009 | CA2727112A1 A voltage source converter |
| 12/16/2009 | EP2133103A1 Programmable electrical sequencer and use thereof for combining and balancing fragrances |
| 12/16/2009 | EP2132852A1 Inverter based storage in dynamic distribution systems including distributed energy resources |
| 12/16/2009 | EP2132759A2 Automatic transfer switch module |
| 12/16/2009 | CN201365129Y Novel power-saving control stand |
| 12/16/2009 | CN201365128Y Intelligent high-voltage reactive power comprehensive regulating device |
| 12/16/2009 | CN201365127Y Cabinet type power filter |
| 12/16/2009 | CN201365126Y 400 Hz dynamic voltage compensation device |
| 12/16/2009 | CN201365125Y High-voltage electricity-saving voltage regulator |
| 12/16/2009 | CN201365073Y Low-voltage dynamic filter compensation cabinet |
| 12/16/2009 | CN201364821Y Capacitor device |
| 12/16/2009 | CN101606298A Controllable phase-angle converter |
| 12/16/2009 | CN101604923A Pulse width modulation (PWM) control method for single-phase grid-connected inverter |
| 12/16/2009 | CN101604854A Solar energy and wind energy combined power generation system |
| 12/16/2009 | CN101604848A Modified fuzzy sliding mode controlling method of monopole three-phase photovoltaic grid-connected system |
| 12/16/2009 | CN101604847A Automatic switching method of automatic synchronized grid-connection device |
| 12/16/2009 | CN101604846A Intelligent high-pressure reactive compensation device and method thereof |
| 12/16/2009 | CN101604845A Low-voltage dynamic filter compensating tank |
| 12/16/2009 | CN101604844A Frequency converter for eliminating harmonic waves |
| 12/16/2009 | CN101604843A Method for reducing line loss by regulating running voltage of distribution network |
| 12/16/2009 | CN101604842A Protective system for electric power system |
| 12/16/2009 | CN101604474A Time-division multiplexing alternating current sampling method for digital substation based on VLAN technology |
| 12/16/2009 | CN101604425A Energy management system providing real time assessment of a potentially compromising situation affecting utility companies |
| 12/16/2009 | CN100570984C Control method of transformer station voltage for realizing comprehensive coordination of continuous device and discrete device |
| 12/16/2009 | CN100570983C On-line combination method for multi-region electric network tide model |
| 12/16/2009 | CN100570982C High voltage electric-saver |
| 12/16/2009 | CN100570981C Apparatus and method for operation controlling of multi-electric power usage system |
| 12/16/2009 | CN100570980C Wide-region energy feedback method for multi-output switch power source and its implementing circuit |
| 12/16/2009 | CN100570979C Method and device for reducting energization transients in a three phase Y-connected load |
| 12/15/2009 | US7633770 Collection and transmission system |
| 12/15/2009 | US7633262 Power supply for underground and pad mounted power distribution systems |
| 12/15/2009 | US7633181 DC-based data center power architecture |