Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663)
01/2012
01/31/2012US8106536 Universal power supply system
01/31/2012US8106532 Illumination device of gradual dimming type after power interruption
01/31/2012US8106531 Multi-output switching regulator and control method therefor
01/27/2012CA2747585A1 Charging apparatus and portable power supply
01/26/2012WO2012011436A1 Method for facilitating operation of ad-hoc energy exchange network, nomadic charging station (ncs) for facilitating operation of ad-hoc energy exchange network, and method for facilitating energy exchange between nomadic charging station (ncs) and energy consumer (ec)
01/26/2012WO2012010353A1 Method and arrangement for capacitor bank protection
01/26/2012WO2012010068A1 Topology of power-generation and grid-integration of transformerless hydraulic generator
01/26/2012WO2012010063A1 H-bridge based transformerless wind power grid-connected topological structure
01/26/2012WO2012010057A1 A transformerless inductive energy storage topology structure
01/26/2012WO2012010056A1 Transformer-free battery energy storage topological structure
01/26/2012WO2012010055A1 Topology for modular multilevel converter-based transformerless inductance energy-saving
01/26/2012WO2012010054A1 Modular multilevel converter-based transformerless solar power inverter topological structure
01/26/2012WO2012010053A1 Transformer-less static synchronous compensator (statcom) topological structure based on modular multilevel converter (mmc)
01/26/2012WO2012010052A1 Mmc-based transformer-free wind power grid-connected topological structure
01/26/2012WO2011061153A3 Tuning a power oscillation damping unit
01/26/2012WO2011039284A4 Monitoring system and method for monitoring energy transfer between a first energy unit and a second energy unit
01/26/2012WO2011020466A3 Power regulating system for solar power station
01/26/2012US20120022707 Wide-area, real-time monitoring and visualization system
01/26/2012US20120019073 Apparatus and system for power conversion
01/26/2012US20120019062 Power head for above ground pools
01/26/2012US20120019007 Method and apparatus for minimizing harmonic currents in a wind turbine park
01/26/2012DE102010031645A1 Device for supplying electric current into electricity mains in e.g. building, has regulating device carrying out prioritization of supply of electric current based on level of compensation of current that is supplied into electricity mains
01/25/2012EP2410645A1 Electronic conversion circuit for photovoltaic plants
01/25/2012EP2410627A1 Electric power consumption micro-meter
01/25/2012EP2409374A1 Battery-based power station
01/25/2012EP2408669A2 A preconditioned air unit with variable frequency driving
01/25/2012EP2145372B1 Method and device for determining load flow in an electrical supply grid
01/25/2012CN202127381U Excitation device for synchro generator
01/25/2012CN202127380U Excitation control unit of synchronous generator
01/25/2012CN202127366U Traction converter with driving force removal devices
01/25/2012CN202127252U Solar photovoltaic grid-connected generation system
01/25/2012CN202127251U Wind-power power forecast system
01/25/2012CN202127250U Transformerless unilateral inductive grid-connected inverting circuit
01/25/2012CN202127249U Earthquake alarm household electronic power saver
01/25/2012CN202127248U Electric energy optimizing device of power-driven drilling machine
01/25/2012CN202127247U Discharge device for capacitor
01/25/2012CN202127246U Fast switching capacitor box
01/25/2012CN202127245U Comprehensive harmonic wave restraining system
01/25/2012CN202127244U Current control type active harmonic control and active reactive power compensation device
01/25/2012CN202127239U Crow bar protection device of double feed rectifier of wind power-generating system
01/25/2012CN202126703U Wind power optimization scheduling plan system
01/25/2012CN102334276A Device for regulating a double-fed asynchronous machine
01/25/2012CN102334274A Converter
01/25/2012CN102334261A Power control device and method
01/25/2012CN102334257A Poly-phase reactive power compensator
01/25/2012CN102334037A Emission factor calculator and emission factor calculation method
01/25/2012CN102333670A Electric power regulating device for electric power feeding system
01/25/2012CN102332729A Inverter parallel system based on zigbee technology
01/25/2012CN102332728A System for controlling permanent magnet wind turbine generator set according to given power under full wind condition
01/25/2012CN102332727A Method for outputting active power by using smoothing permanent-magnet direct-driving wind power generating system of direct-current-side flywheel energy storage unit
01/25/2012CN102332726A Control method based on output of power grid line overload speed reduction unit
01/25/2012CN102332725A High potential gate control device for series thyristor valve block in SVC (Static Var Compensator)
01/25/2012CN102332724A Three-phase four-bridge-arm active power filter under one-cycle control
01/25/2012CN102332723A Automatic resonance type electric power filtering and continuous reactive power compensation hybrid system
01/25/2012CN102332722A Matched filtering compensation energy-saving complete device for rectifying transformer
01/25/2012CN102332721A Method for predicting harmonic current of hybrid active power filter based on optimal linear prediction theory
01/25/2012CN102332720A Line noise muffler
01/25/2012CN102332719A Dynamic power flow control device for multi-frequency modulation based controllable transformer and control method thereof
01/25/2012CN102332718A Method of operating a wind turbine, controller usable for operating a wind turbine, and wind turbine
01/25/2012CN102328601A Energy-feedback tractive power supply system with high power factor and high cost performance
01/25/2012CN101814737B Pressure regulating and capacitance regulating reactive power automatic compensation method
01/25/2012CN101707366B Inter-wire superconducting current-limiting storage circuits
01/25/2012CN101699695B Discharge energy-saving type compensating capacitor device
01/25/2012CN101667732B Isolation transformer type multi-level voltage output mobile three-phase voltage-stabilizing power supply
01/25/2012CN101593976B Method for constructing physical model of double circuit transmission lines on same tower
01/25/2012CN101510695B Double fed asynchronous wind power generator rotor side parallel-in control method
01/24/2012US8102665 Integrated circuit with intra-chip clock interface and methods for use therewith
01/24/2012US8102144 Power converter for a solar panel
01/24/2012US8102079 Dynamic voltage compensator used in three-phase power supply system
01/24/2012CA2529135C System and method for transmitting electric power into a bore hole
01/19/2012WO2012008392A1 Energy management system for houses
01/19/2012WO2012008093A1 Monitoring control system for electrical power equipment
01/19/2012WO2012006746A1 Bidirectional dc converter
01/19/2012WO2012006735A1 Constructions for forming a housing
01/19/2012WO2012006644A2 Method for planning and/or controlling an energy output to a consumer and/or an energy supply to an energy distribution network
01/19/2012WO2011140111A3 Managing renewable power generation
01/19/2012WO2010130615A3 Method and apparatus for the directional transmission of electricity in an electricity grid
01/19/2012US20120013193 Uninterruptible power supply system
01/19/2012US20120013175 Auxiliary battery system
01/19/2012CA2805648A1 Method for planning and/or controlling an energy output to a consumer and/or an energy supply to an energy distribution network
01/18/2012EP2408085A2 Methods for aircraft emergency power management
01/18/2012EP2408084A2 No break power transfer with solid state power controls
01/18/2012EP2408083A1 Autonomous distributed ac power system
01/18/2012EP2408082A1 Integrated demand response for energy utilization
01/18/2012EP2407996A2 Current sensing arrangement in an inverter
01/18/2012EP2406863A1 System and method for real-time feeder reconfiguration for load balancing in distribution system automation
01/18/2012EP2406862A1 Control device, reactive power compensator and method
01/18/2012EP2406483A1 Energy supply system
01/18/2012CN202121496U Automobile motor mutual-driving testing power source
01/18/2012CN202121466U Energy saving motor
01/18/2012CN202121383U Automatic voltage control system of regional electrical network
01/18/2012CN202121363U Intelligent charger of energy-efficient automobile
01/18/2012CN202121331U Intelligent multifunctional photovoltaic grid-connected inverter
01/18/2012CN202121330U Wind power energy storage system
01/18/2012CN202121329U 10 KV alternating current main reactive power compensation control device
01/18/2012CN202121328U Integrated high voltage wattless automatic compensation unit
01/18/2012CN202121327U Dynamic-filter reactive compensation cabinet
01/18/2012CN202121326U Integrated intelligent variable capacitor
01/18/2012CN202121325U Single phase voltage lifting appliance with intelligent control combination switch
01/18/2012CN202121324U Dynamic harmonic wave inhibition and reactive compensation device