| Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663) | 
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| 12/26/2012 | CN202633966U System for controlling low voltage ride through of aerogenerator | 
| 12/26/2012 | CN202633965U Intelligent household solar energy photovoltaic grid-tied generating system supervising device | 
| 12/26/2012 | CN202633964U Energy-fed type traction substation and power supply system | 
| 12/26/2012 | CN202633963U Circuit of photovoltaic grid-connected inverter | 
| 12/26/2012 | CN202633962U Photovoltaic grid connected and electric energy quality comprehensive control apparatus based on TMS320F2812 | 
| 12/26/2012 | CN202633961U Monitoring system for battery energy storing station | 
| 12/26/2012 | CN202633960U Automatic adjusting system of low voltage three-phase load imbalance | 
| 12/26/2012 | CN202633959U Device for adjusting unbalanced reactive compensation | 
| 12/26/2012 | CN202633958U Dynamic reactive compensation device of integrated magnetic control electric reactor | 
| 12/26/2012 | CN202633957U Regional and country-level integrated automatic voltage reactive power control system | 
| 12/26/2012 | CN202633956U Low-voltage compensation box | 
| 12/26/2012 | CN202633955U Capacitance compensation cooling device | 
| 12/26/2012 | CN202633954U Novel static synchronization reactive compensation device circuit | 
| 12/26/2012 | CN202633953U Intelligent low-voltage filtering compensation device | 
| 12/26/2012 | CN202633952U High-voltage reactive automatic compensation device | 
| 12/26/2012 | CN202633951U Dynamic reactive power compensator based on IGBT high voltage control | 
| 12/26/2012 | CN202633950U Integrated intelligent adjustment and compensation capacitor bank | 
| 12/26/2012 | CN202633949U Customer load control device adopting timing clock | 
| 12/26/2012 | CN202633948U Power automatic control analog device | 
| 12/26/2012 | CN202633947U Dynamic intelligent compensator circuit | 
| 12/26/2012 | CN202633946U Low voltage electric power active stepless capacitance regulation compensation filtering device | 
| 12/26/2012 | CN202633945U Electrical anti-interference loop | 
| 12/26/2012 | CN202633944U Injection molding machine intelligent power saver | 
| 12/26/2012 | CN202633943U Power supply system of rail transit station | 
| 12/26/2012 | CN202633942U AC (alternating-current) distribution system | 
| 12/26/2012 | CN202633941U Phase sequence self-adaptive feeder voltage lifting device | 
| 12/26/2012 | CN202633940U Energy monitoring device for single device and with load trend prediction | 
| 12/26/2012 | CN202633939U DC LAN (Direct Current Local Area Network)-based distributed power generation system | 
| 12/26/2012 | CN202633771U Multifunctional capacitor compensation cabinet | 
| 12/26/2012 | CN202633748U Multifunctional low-voltage distribution cabinet | 
| 12/26/2012 | CN102844963A Energy management system for houses | 
| 12/26/2012 | CN102844953A Apparatus and method for stabilizing electrical power import | 
| 12/26/2012 | CN102844952A Electric-power management system, electric-power management method, and section controller | 
| 12/26/2012 | CN102844951A Method and apparatus for determining an excess amount of energy of an electric energy store of a vehicle | 
| 12/26/2012 | CN102843095A Motor drive apparatus equipped with energy storage unit | 
| 12/26/2012 | CN102843060A Two-level two-direction current transformer and control method thereof | 
| 12/26/2012 | CN102843054A Single-phase five-level inverter | 
| 12/26/2012 | CN102842987A Environment-friendly elastic energy storage power station | 
| 12/26/2012 | CN102842964A Energy storage access system | 
| 12/26/2012 | CN102842921A Micro-grid multi-inverter parallel voltage control method for droop control of robust power | 
| 12/26/2012 | CN102842920A AC (alternating current) /DC (direct current) coordinating and control method for restraining large-scale wind turbine tripping | 
| 12/26/2012 | CN102842919A Flexible control method for photovoltaic grid-connected power generating system | 
| 12/26/2012 | CN102842918A Current grid-connected method and device utilizing digital phase-locked loop and phase compensation | 
| 12/26/2012 | CN102842917A Universal electromechanical transient state model of grid-connected photovoltaic power generation system | 
| 12/26/2012 | CN102842916A Information acquisition method, scheduling method and system for grid connection of multiple wind farms | 
| 12/26/2012 | CN102842915A Grid-connected inverter with information integration function | 
| 12/26/2012 | CN102842914A Energy storage power station monitoring system | 
| 12/26/2012 | CN102842913A Mixed switch control type medium-high voltage dynamic reactive power compensator | 
| 12/26/2012 | CN102842912A Single carrier control method applicable to cascaded SVG | 
| 12/26/2012 | CN102842911A Mine-used dynamic reactive power compensation device | 
| 12/26/2012 | CN102842910A Reactive power compensation method for overhead power transmission line | 
| 12/26/2012 | CN102842909A Method for controlling power electronic hybrid system | 
| 12/26/2012 | CN102842908A Three-phase decoupling power flow calculation method for power distribution network containing multiple transformer branches | 
| 12/26/2012 | CN102842907A Three-phase decoupling load flow calculation method of power distribution network based on path matrix | 
| 12/26/2012 | CN102842906A Motor power ratio calculating method in comprehensive load model | 
| 12/26/2012 | CN102842905A Power distribution network state assessment method based on subnet worst principle | 
| 12/26/2012 | CN102842904A Micro-grid collaborative frequency control method based on power shortage prediction and distribution | 
| 12/26/2012 | CN102842881A Grounding protection device and thin film battery generating device based on grounding protection device | 
| 12/26/2012 | CN102842858A Movable high-voltage high-capacity chained STATCOM system container structure | 
| 12/26/2012 | CN102841962A Method for interacting electromagnetic-electromechanical transient hybrid real-time stimulation interface based on advanced calculation | 
| 12/26/2012 | CN102841582A Distribution grid self-healing control system and implementation method thereof | 
| 12/26/2012 | CN102841279A Micro-grid island detection method | 
| 12/26/2012 | CN102840160A Air cooling control device and working method thereof | 
| 12/26/2012 | CN102840108A High-altitude tower embedded type vertical type wind power generation system | 
| 12/26/2012 | CN102223037B Novel variable-speed salient-pole synchronous motor and huge rotary frequency converter | 
| 12/26/2012 | CN102157960B Method for anticipation protection and energy regulation of full-power wind turbine generator under symmetrical grid failure | 
| 12/26/2012 | CN102110982B Method and device for monitoring power of extra-high voltage connecting line | 
| 12/26/2012 | CN102110981B Method and system for information interaction of power grid with safety certification | 
| 12/26/2012 | CN102097802B Electrical energy management system and method | 
| 12/26/2012 | CN102055188B Ultra-short term wind power forecasting method based on time series method | 
| 12/26/2012 | CN102005760B Universal wind power short-term forecasting method | 
| 12/26/2012 | CN101950967B Special voltage stabilizer for three-phase permanent magnet synchronous motor (PMSM) for producing well in oil field | 
| 12/26/2012 | CN101944743B Method for designing coordinate amount among automatic voltage control systems of power grid and implementing method thereof | 
| 12/26/2012 | CN101917000B Method for evaluating load of traction substation of electric railway | 
| 12/26/2012 | CN101707345B Method for controlling switch controller | 
| 12/26/2012 | CN101465544B Real time collection and monitoring system for electrification side control performance standard check | 
| 12/25/2012 | US8340832 Energy efficiency management system and method | 
| 12/25/2012 | US8339118 Adaptive bias current generator methods and apparatus | 
| 12/25/2012 | US8339099 Multi-series battery control system | 
| 12/25/2012 | US8338989 Inverter power system | 
| 12/25/2012 | US8338988 Adaptation of an active power supply set using an event trigger | 
| 12/25/2012 | US8338983 SSPC for AC power distribution | 
| 12/25/2012 | US8338982 Apparatus to maintain redundancy in four line system | 
| 12/25/2012 | US8338981 Communication between network interface device and subscriber devices via power supply lines | 
| 12/20/2012 | WO2012174145A2 Energy systems and energy supply methods | 
| 12/20/2012 | WO2012173196A1 Power supply system | 
| 12/20/2012 | WO2012173194A1 Charging system, power management server, vehicle management server, and power management program | 
| 12/20/2012 | WO2012173134A1 Charging system, charging management device, control method, and program | 
| 12/20/2012 | WO2012172616A1 Microgrid control system | 
| 12/20/2012 | WO2012172352A2 Method and system for energy modelling | 
| 12/20/2012 | WO2012172193A1 Heating, ventilation and/or air-conditioning device with targeted power-supply management | 
| 12/20/2012 | WO2012172101A1 Arrangement and method for avoiding stray currents in wind power plants | 
| 12/20/2012 | WO2012171147A1 Coordination and control system for regulated charging and discharging of pure electric vehicle in combination with wind power generation | 
| 12/20/2012 | WO2012122225A3 Phase-based operation of devices on a polyphase electric distribution system | 
| 12/20/2012 | WO2011147662A3 Method for supplying an electric domestic appliance from a low voltage supply network and a domestic appliance suitable for carrying out said method | 
| 12/20/2012 | WO2011114161A3 Power conditioning units | 
| 12/20/2012 | US20120319491 Methods and systems for providing an appliance hybrid mode | 
| 12/20/2012 | US20120319482 Methods and systems for activating sealed sensors in the field | 
| 12/20/2012 | US20120319480 Systems and methods for optimizing power loads in a power distribution unit | 
| 12/20/2012 | US20120319479 Power demand management in inductive power transfer systems |