Patents
Sitemap › H02 - Generation, conversion, or distribution of electric power › H02J - Circuit arrangements or systems for supplying or distributing electric power; Systems for storing electric energy › H02J 3 - Circuit arrangements for ac mains or ac distribution networks
Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663)
05/2012
05/30/2012CN202261081U Solar photovoltaic grid-connected and grid-disconnected hybrid power generating system
05/30/2012CN202261071U High-efficiency single-phase photovoltaic grid-connected inverter
05/30/2012CN202260981U Direct-current power transmission and current conversion valve cooling system
05/30/2012CN202260649U External energy-storage voltage stabilizing circuit of direct-current loop of frequency converter
05/30/2012CN202260592U Power supply system capable of transmitting vehicle-mounted electric energy to public power grid
05/30/2012CN202260580U Electrical network energy feedback system
05/30/2012CN202260524U Alternate-current charge spot for electromobile
05/30/2012CN202260489U Rectification feedback device for dam crest gantry crane and tailwater gantry crane
05/30/2012CN202260488U Low voltage ride through comprehensive simulation system of wind generation set
05/30/2012CN202260487U Control device for single-phase photovoltaic grid-connected power generation system
05/30/2012CN202260486U Electric system
05/30/2012CN202260485U Aerial ground power supply system
05/30/2012CN202260484U Battery energy-saving charging/discharging testing system
05/30/2012CN202260483U Power battery testing and control system of energy recovery electric automobile
05/30/2012CN202260482U Direct-current feed type energy saving device for motor
05/30/2012CN202260481U Dynamic voltage restorer for three-phase four-wire system distribution network
05/30/2012CN202260480U Tail end voltage booster device arranged on three-phase four-wire transmission line
05/30/2012CN202260479U Device for eliminating three-phase current imbalance and managing negative sequence based on static var generator (SVG) device
05/30/2012CN202260478U Automatic reactive power compensation system
05/30/2012CN202260477U Mine explosion-proof reactive power compensation equipment with electrification display function
05/30/2012CN202260476U Double-control reactive power compensation circuit
05/30/2012CN202260475U Reactive compensation device with smart temperature protection function
05/30/2012CN202260474U Control system based on dynamic reactive compensation and soft starting of magnetic controllable reactor (MCR)
05/30/2012CN202260473U 3300V mining reactive power automatic compensation device
05/30/2012CN202260472U Large-capacity railway signal-phase chain type SVG (static var generator) device
05/30/2012CN202260471U Reactive power numerical control automatic split-phase compensating controller
05/30/2012CN202260470U SVC hermetic type circulating purified water cooling system
05/30/2012CN202260469U Novel low-voltage reactive power compensation device
05/30/2012CN202260468U Simulation operating system of transformer neutral current suppression device
05/30/2012CN202260467U Magnetic control parallel reactor
05/30/2012CN202260466U Low-voltage dynamic reactive power three-phase and single-phase mixed filtering compensation device
05/30/2012CN202260465U Wireless remote transmission high-voltage reactive power compensation device
05/30/2012CN202260464U Intelligent reactive power compensation measurement and control device
05/30/2012CN202260463U Double-fed asynchronous wind generator power compensation device
05/30/2012CN202260462U Automatic reactive power compensation device
05/30/2012CN202260461U Thyristor switched capacitor intelligent self-diagnosis device
05/30/2012CN202260460U Switching virtual circuit (SVC) constant voltage compound control device of unbalanced load system
05/30/2012CN202260459U Low-voltage compensation device suitable for ferro silicon smelting mine heating furnace
05/30/2012CN202260458U Singlechip digital filtering device for measuring voltage of double-fed wind power station
05/30/2012CN202260457U Novel optimization device for power utilization quality
05/30/2012CN202260456U Second-order wave blocking high-pass filtering apparatus used for traction and electric power supply, for three-phase electric power supply system
05/30/2012CN202260455U Alternating-current filter capacitor bank
05/30/2012CN202260454U Universal intelligent power-saving device
05/30/2012CN202260453U Coal mine high voltage supply system harmonic treatment device
05/30/2012CN202260452U Comprehensive load power saver control device
05/30/2012CN202260451U Regional intelligent distribution network system
05/30/2012CN202260450U Thermal-electric plant boiler high-pressure fan online power frequency/frequency conversion operation switch device
05/30/2012CN202260449U Device capable of preventing false switching of isolating switch when SVC device is powered on
05/30/2012CN202260448U Automatic switching device for transformer
05/30/2012CN202260447U Device for controlling power allocation
05/30/2012CN202260345U Power transmission line AC ice melting device adopting capacitor reactive compensation
05/30/2012CN202258741U Dry type hollow parallel reactor
05/30/2012CN202258652U Three-phase adjustable reactor having linearity and nonlinearity characteristics
05/30/2012CN202257319U Capacitor cabinet and temperature control device thereof
05/30/2012CN202250614U Novel direct-drive permanent magnet type wind-driven power generator unit
05/30/2012CN1976210B System and method for common system and wind turbine control
05/30/2012CN102484430A Fault current limitation in DC power transmission systems
05/30/2012CN102484384A Electric-power transaction apparatus and method of controlling electric-power transaction apparatus
05/30/2012CN102484372A 太阳能发电用功率调节器 Solar power generation by the power regulator
05/30/2012CN102484371A 分散型电源的独立运行系统 Independent operation of the system of decentralized power
05/30/2012CN102484370A Controlling charging stations
05/30/2012CN102484369A Multi-Terminal Power Conversion Device, Multi-Terminal Power Transfer Device, And Power Network System
05/30/2012CN102483636A Ac connected modules with line frequency or voltage variation pattern for energy control
05/30/2012CN102483635A 引擎系统 Engine Systems
05/30/2012CN102481857A Electric power supply system and electric power supply method
05/30/2012CN102480262A Three-phase controllable reactor
05/30/2012CN102480133A Power systems for photovoltaic and DC input sources
05/30/2012CN102480132A Starting method for photovoltaic grid-connected power generating system and device
05/30/2012CN102480131A 风电上网调峰服务的补偿处理系统及其运行方法 Compensation processing system and method of operating wind power peaking services
05/30/2012CN102480130A Power compensation method and system for wind power system
05/30/2012CN102480129A 高压电力电容器 HV power capacitors
05/30/2012CN102480128A 一种智能净化滤波补偿装置 An intelligent purifying filter compensation device
05/30/2012CN102480127A Low voltage filtering compensation cabinet
05/30/2012CN102477951A Wind power generating and wind-solar complementary generating system
05/30/2012CN102477949A Multi-energy generating system
05/30/2012CN101950972B SVC composite control method based on rapid equivalent susceptance calculation
05/30/2012CN101820172B Power grid flexible constraint integrated system
05/30/2012CN101795005B Storage battery energy storage conditioning device
05/30/2012CN101789598B Power system load modelling method
05/30/2012CN101771275B Electric energy monitoring system
05/30/2012CN101764410B Trigger circuit of water-cooling light-control thyristor of 66 kV
05/30/2012CN101741093B Control method for realizing power compensation and harmonic governance
05/30/2012CN101719678B No-load cutting-in modeling and experimental method of double-fed type wind-driven generator
05/30/2012CN101710707B Power quality comprehensive compensation system of electric railway and control method thereof
05/30/2012CN101667789B Inverter circuit used for solar energy photovoltaic grid connection and device thereof
05/30/2012CN101656421B Simulation method of electricity grid oscillating signal
05/30/2012CN101552491B Integrated energy saving system of power supply and distribution system
05/30/2012CN101542885B Redundant current valve control in a high voltage power transmission system
05/30/2012CN101499716B Single phase power factor correcting analog circuit without need of detecting DC output voltage
05/30/2012CN101453187B Wind turbine control reference signal detection method for unsymmetrical failure of electric grid
05/30/2012CN101438475B More compact and higher reliability power source system
05/30/2012CN101369730B Zero-pharse harmonic reduction device having protection function of overload
05/30/2012CN101275236B Apparatus to reduce the cost of renewable hydrogen fuel generation by electrolysis using combined power
05/30/2012CN101080861B Equipment and method for controlling electric power flow in high voltage network
05/30/2012CA2758901A1 Integration of renewable power generating technologies with integrated volt/var control systems
05/29/2012US8189352 Single stage inverter device, and related controlling method, for converters of power from energy sources, in particular photovoltaic sources
05/29/2012US8188617 Current balancing apparatus, current balancing method, and power supply apparatus
05/29/2012US8188615 Integrated circuit adapted to be selectively AC or DC coupled
05/25/2012CA2729776A1 Output control method and output control unit for wind power plant
05/24/2012WO2012068017A2 Fuel cell system with grid independent operation and dc microgrid capability
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