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