Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663)
07/2012
07/04/2012CN102545219A Alternating-current chopped type static reactive compensation filtering device
07/04/2012CN102545218A Online load modeling parallel computing method based on electric energy quality monitoring system
07/04/2012CN102545217A Planning method of power grid power supply reliability based on logic frame
07/04/2012CN102545216A Projection method for generator node voltage during electric power system transient stability simulation process
07/04/2012CN102545215A Global-positioning-system-based quantitative analysis and evaluation method for primary frequency regulation performance of regional power grid
07/04/2012CN102545214A Method for evaluating reliability of wind farm having battery energy storage equipment
07/04/2012CN102545213A System and method for managing line loss of power grid in real time
07/04/2012CN102545212A Electrical energy quality centralized monitoring and auxiliary management decision support system
07/04/2012CN102545211A Universal data preprocessing device and method for wind power prediction
07/04/2012CN102545210A Method and system for optimizing and regulating distribution network power supply reliability indexes
07/04/2012CN102545209A Online analysis method for comprehensive equivalent damping characteristics of regional generator group
07/04/2012CN102545208A Power grid running mode getting method based on frequency response
07/04/2012CN102545207A Voltage source commutation-high voltage direct current (VSC-HVDC) alternating-direct current optimal power flow method based on predictor-corrector inner point method
07/04/2012CN102545206A Voltage source commutation-high voltage direct current (VSC-HVDC) power flow computing method based on automatic differential (AD) and reserving non-linear method
07/04/2012CN102545205A Distributed power system state estimating method based on automatic differentiation technology
07/04/2012CN102545204A Automatic generation method and device of power grid fault set
07/04/2012CN102545203A Consumer Energy Management System
07/04/2012CN102545201A Method for establishing high-voltage direct-current small signal model
07/04/2012CN102545190A Design method and device for electronic shelter lightning protection filter
07/04/2012CN102542360A Method for processing unmodeled unit in process of forecasting bus load
07/04/2012CN102542147A Method for measuring topological similarity among factory stations in electric network
07/04/2012CN102536669A Wind energy and tidal energy complementary energy-storage power generation system
07/04/2012CN102082541B Overcurrent inhibition method for doubly-fed wind driven generator rotor in grid fault
07/04/2012CN102035211B Method, device and system for inhibiting low-frequency oscillation of power system
07/04/2012CN101986552B Rotor current control method of double-fed wind driven generator under power grid faults
07/04/2012CN101938133B Reverse blocking type IGBT (Insulated Gate Bipolar Translator) based compensating method of PWM (Pulse-Width Modulation) control capacitance type SVC (Static Var Compensator)
07/04/2012CN101917013B Double-feed wind power generating system with energy storage function
07/04/2012CN101882790B Capacitor configuration method and system
07/04/2012CN101872974B Modeling method based on space magnetic field with transmission line on one tower
07/04/2012CN101854063B Device and method for detecting power phase in energy feedback device
07/04/2012CN101795000B Power capacitor dynamic tuning-off device and control method
07/04/2012CN101789608B Isolated power grid multi-unit parallel load distribution control system
07/04/2012CN101771277B Method for apportioning and evaluating loss in shared control area in regional power grid accident
07/04/2012CN101764415B Synchronously-closed multi-CPU coprocessing method
07/04/2012CN101752869B Ac MgO electric smelting furnace power supply system based on power saving operation
07/04/2012CN101699760B Dynamic power control system of variable speed constant frequency doubly-fed asynchronous wind-driven generator
07/04/2012CN101685966B Method for comprehensively analyzing low-frequency oscillation and system thereof
07/04/2012CN101685965B Online tideway integrating method and system of large power grid
07/04/2012CN101640417B Load management method and device
07/04/2012CN101630843B Alternating current phase modulation energy saver
07/04/2012CN101552445B Reconstruction configuration method of thyristor controlled reactor (TCR) valve block
07/04/2012CN101521467B High-frequency distribution transformer
07/04/2012CN101459335B Control apparatus for three level dynamic voltage recovery device
07/04/2012CN101141068B Control methods for pulse width modulation (PWM)
07/04/2012CA2762776A1 Integrated electric meter with var capability
07/03/2012US8213144 Circuit protection system
07/03/2012US8212535 Toroidal core current transformer with phase compensation circuit
07/03/2012US8212416 Device for filtering harmonics
07/03/2012US8212412 Energy storage connection system
07/03/2012US8212409 Method for activating a multi-string inverter for photovoltaic plants
07/03/2012US8212406 System, socket and plug apparatus for DC power distribution and usage
07/03/2012US8212405 Metering assembly and customer load panel for power delivery
07/03/2012US8212396 Apparatus power restart method in response to network connection status
07/03/2012US8212395 Systems and methods for optimizing power loads in a power distribution unit
07/03/2012US8212394 Remote controllable power outlet apparatus with grouping capability and remote control grouping method thereof
07/03/2012US8212393 Device and method for addressing power to a load selected from a plurality of loads
07/03/2012US8212391 Circuit array
07/03/2012US8212388 Multi-capacity power supply for electronic devices
07/03/2012US8212380 Power source apparatus and image forming apparatus
07/03/2012US8212378 Control and supply system
07/03/2012US8212377 Smart control device
07/03/2012US8212376 Apparatus and method for providing operative power to powerline-network device
07/03/2012CA2756195C System and method for combining electrical power from photovoltaic sources
06/2012
06/29/2012CA2762732A1 Phase identification system and method
06/28/2012WO2012086865A1 Electricity management apparatus and electricity management method
06/28/2012WO2012086572A1 Power control system and power control method therefor, and power gateway apparatus and power control method therefor
06/28/2012WO2012085461A1 Photovoltaic equipment and method for outputting, from solar radiation, dc current and/or voltage that is optimal and constant over time
06/28/2012WO2012084663A1 Method and apparatus for operating a domestic appliance and domestic appliance
06/28/2012WO2012083949A1 Input voltage adaption device
06/28/2012WO2012083649A1 Ground power supply system for bullet trains
06/28/2012WO2012028150A3 Control of electric output of a wind park
06/28/2012WO2012006644A3 Method for planning and/or controlling an energy output to a consumer and/or an energy supply to an energy distribution network
06/28/2012US20120161525 Motor control device of air conditioner using distributed power supply
06/28/2012US20120161520 Double loop structure
06/28/2012US20120161517 Electronic device for controlling consumption power and method of operating the same
06/28/2012DE112009004353T5 Stromumwandlungsvorrichtung Power conversion device
06/28/2012DE102010063951A1 Vorrichtung und Verfahren zur Versorgung eines elektrischen Gerätes mit elektronischer Energie Apparatus and method for providing an electrical device with electronic energy
06/28/2012CA2822703A1 Method of adjusting power absorbed by at least one electrically powered vehicle
06/28/2012CA2762760A1 Transfer switch with internal interlock
06/27/2012EP2469682A1 Quick charging device
06/27/2012EP2469681A2 Methods and systems for operating a power generation system
06/27/2012EP2469680A2 Power conversion system and method
06/27/2012EP2469679A2 Device and method for supplying an electric device with electrical energy
06/27/2012EP2469678A1 Charge/discharge control device and power generating system
06/27/2012EP2469677A2 Apparatus and method for improving power efficiency
06/27/2012EP2469676A1 Demand-prediction device, program, and recording medium
06/27/2012EP2469372A2 Methods and systems for operating a two-stage power converter
06/27/2012EP2469238A2 Photovoltaic device
06/27/2012EP2467920A2 Power regulation for solar power station
06/27/2012EP2467919A2 Energy storage systems and associated methods
06/27/2012EP2467918A2 Electrical charging device
06/27/2012EP1946436B1 Power converters
06/27/2012CN202285382U Self-coupling magnetic control reactance soft-starting device for super-power high-voltage motor
06/27/2012CN202285336U 三相同步发电机并网实验装置 Three-phase synchronous generator and network test equipment
06/27/2012CN202285335U Domestic solar generator
06/27/2012CN202285334U Pulse-width modulation (PWM) signal generator of scalable vector graphics (SVG) reactive power compensation generator
06/27/2012CN202285333U Energy-saving compound switch
06/27/2012CN202285332U Reactive power compensation controller and low voltage dynamic reactive power compensation control device
06/27/2012CN202285331U Hybrid power filter
06/27/2012CN202285330U Intelligent power quality adjusting device