Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663) |
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05/25/2011 | CN201846086U Complete set of dynamic reactive power compensation and filter device |
05/25/2011 | CN201846085U Hybrid electrical energy quality governance device |
05/25/2011 | CN201846084U Spaced stem used for parallel reactor |
05/25/2011 | CN201846083U Low-voltage reactive power compensation device |
05/25/2011 | CN201846082U Working condition monitoring device, capacitor and reactive power factor compensating device |
05/25/2011 | CN201846081U Disaster-prevention reactive compensation device |
05/25/2011 | CN201846080U Intelligent harmonic elimination controller |
05/25/2011 | CN201846079U Modular filtering device |
05/25/2011 | CN201846078U Staggered one-cycle control compensating current generator |
05/25/2011 | CN201846077U Filter |
05/25/2011 | CN201846076U LCL (lower control limit) filter of special frequency converter for mine hoist |
05/25/2011 | CN201846009U Comprehensive control cabinet for transformer |
05/25/2011 | CN201844350U Street lamp system adopting solar and wind power grid integration centralized power supply |
05/25/2011 | CN1926742B Method for operating electric generator frequency-converter and wind-power turbomachine having electric generator operated by the method |
05/25/2011 | CN102077454A Battery energy source arrangement and voltage source converter system |
05/25/2011 | CN102077437A Method and system for operating a wind power plant comprising a number of wind turbine generators |
05/25/2011 | CN102077436A Method for production of an oscillating signal and electrical protection - or measurement instrument having an oscillation identification device |
05/25/2011 | CN102075014A Large grid real-time scheduling method for accepting access of wind power |
05/25/2011 | CN102075006A Village supercharger |
05/25/2011 | CN102074974A Device and method for eliminating grid-connected current zero-crossing distortion of unipolar control single-phase grid-connected inverter |
05/25/2011 | CN102074973A Hosting mode-based distributed power supply synchronizing method and device |
05/25/2011 | CN102074972A Energy feedback type traction power supply device with reactive compensation function and control method thereof |
05/25/2011 | CN102074971A Feedback load energy-saving circuit for aging test and control method thereof |
05/25/2011 | CN102074970A Energy management system and grid-connected energy storage system including the energy management system |
05/25/2011 | CN102074969A Wind power plant and operation method for same |
05/25/2011 | CN102074968A Photovoltaic miniature grid-connected inverter control device and control method thereof |
05/25/2011 | CN102074967A Method for controlling energy storage type wind power station with synchronization property |
05/25/2011 | CN102074966A System and method for combining distributed generation and distribution network in distribution network terminal |
05/25/2011 | CN102074965A Device and method for reactive power compensation and harmonic suppression of grid-connected potovoltaic system |
05/25/2011 | CN102074964A Method for rapidly analyzing reactive power balance and critical power flow of power system |
05/25/2011 | CN102074963A Intelligent reactive compensation comprehensive control device |
05/25/2011 | CN102074962A Combination switch type step controllable shunt reactor |
05/25/2011 | CN102074961A Leveled controllable parallel reactor device configured by series public reactor |
05/25/2011 | CN102074960A Thyristor valve control type controllable shunt reactor device adopting valve series type configuration |
05/25/2011 | CN102074959A Thyristor valve-controlled controlled shunt reactor device |
05/25/2011 | CN102074958A Thyristor valve controlled type controllable paralleling reactor device configured with parallel valve branches |
05/25/2011 | CN102074957A Primary frequency regulation and automatic generation control (AGC) load regulation coordinated control method |
05/25/2011 | CN102074956A Power grid risk management method and system |
05/25/2011 | CN102074955A Method based on knowledge discovery technology for stability assessment and control of electric system |
05/25/2011 | CN102074954A Comprehensive energy-conservation evaluation and decision-making method for urban and rural distribution network |
05/25/2011 | CN102074953A Double-purpose micro-grid system structure used for power supply and experiment |
05/25/2011 | CN102074952A Independent micro-grid system |
05/25/2011 | CN102072778A System and method for determining the temperature of a permanent magnet in a machine |
05/25/2011 | CN101609993B Self-adaptive leading time realizing method for synchronization function of measure and control device |
05/25/2011 | CN101604848B Modified fuzzy sliding mode controlling method of monopole three-phase photovoltaic grid-connected system |
05/25/2011 | CN101604847B Automatic switching method of automatic synchronized grid-connection device |
05/25/2011 | CN101478161B Active electric filter compensation current control method under non-ideal voltage |
05/25/2011 | CN101388564B Combined power supply device and operating method thereof |
05/25/2011 | CN101363406B Wind power generation system with multi-blower fans connection in parallel |
05/25/2011 | CN101345508B Controllable afterflow method of magnetic controlled shunt reactor |
05/25/2011 | CN101340098B Dynamic reactive compensating method |
05/25/2011 | CN101299546B Solar power plant |
05/25/2011 | CN101291129B Wind power electricity generating apparatus |
05/25/2011 | CN101286723B Control method for ultra-high/extra-high voltage magnetic control type parallel reactor |
05/25/2011 | CN101277017B Method for regulating static reactive compensator of power transmission system |
05/25/2011 | CN101188359B Distribution network reliability evaluation method based on failure transfer feature of components |
05/25/2011 | CN101174759B Integrated monitoring apparatus for electrical power distribution |
05/25/2011 | CN101091057B Wind park with robust reactive power adjustment system and method for the operation thereof |
05/25/2011 | CN101068082B Comprehensive compensating device and method |
05/25/2011 | CN101044663B Device for the safe isolation of a nuclea power plant from a power grid, power plant equipment and industrial equipment |
05/25/2011 | CN101009475B Wind turbine dump load system and method |
05/24/2011 | US7949615 System and method of controlling delivery and/or usage of a commodity |
05/24/2011 | US7948116 Method and apparatus for controlling a supply current for a circuit or a plurality of circuit blocks |
05/24/2011 | US7948115 Controller for a domestic appliance and associated method |
05/24/2011 | US7948114 Apparatus and method for providing a power switch array with adjustable current rating power switches |
05/19/2011 | WO2011059425A2 Improved internal electrification scheme for power generation plants |
05/19/2011 | WO2011058412A1 Power distribution system |
05/19/2011 | WO2011058405A1 Power distribution system |
05/19/2011 | WO2011058170A1 Method and device for operation of a wind power plant |
05/19/2011 | US20110118891 Grid responsive control device |
05/19/2011 | US20110115302 System and method for synchronizing an auxiliary electrical generator to an electrical system |
05/19/2011 | US20110115301 Method and area electric power system detecting islanding by employing controlled reactive power injection by a number of inverters |
05/19/2011 | US20110115293 Method for replacing a load control device of a load control system |
05/19/2011 | US20110115292 Power operation system, power operation method and photovoltaic power generator |
05/19/2011 | DE102009042865A1 Verfahren und Vorrichtung zur automatischen Stabilisierung eines Netzes die für elektrische Energieversorgung mit zumindest einem Stromrichter Method and apparatus for automatic stabilization of a network for the supply of electrical energy to at least one power converter |
05/18/2011 | EP2321885A2 Systems and methods for conditioning and controlling power usage |
05/18/2011 | EP2321855A1 An electrical power distribution installation |
05/18/2011 | EP2223410B1 Modelling a power production network for distributing the load |
05/18/2011 | CN201839257U Frequency-conversion and reactive-compensation comprehensive device |
05/18/2011 | CN201839200U Power factor correction circuit with variable duty cycle control |
05/18/2011 | CN201839050U Electric vehicle charging station with energy storage device |
05/18/2011 | CN201839018U Large-scale wind power independent transmitting system based on synthesis reactive power compensation technology |
05/18/2011 | CN201839017U Wind and solar temperature difference hybrid power generation combined power grid |
05/18/2011 | CN201839016U Compact arranging structure for wind driven generator and networking box type transformer |
05/18/2011 | CN201839015U Power converter component for solar power station |
05/18/2011 | CN201839014U Renewable electricity feedback device of lifter |
05/18/2011 | CN201839013U Device for restarting high-voltage frequency converter in instant power failure of power grid |
05/18/2011 | CN201839012U Startup charging and shutdown discharging circuit of static var generator |
05/18/2011 | CN201839011U SVG (static var generator) static reactive compensation device automatically controlling shunt capacitor switching |
05/18/2011 | CN201839010U Intelligent energy-saving environment protection device |
05/18/2011 | CN201839009U Reactive dynamic voltage compensator |
05/18/2011 | CN201839008U Disaster-preventive reactive power compensation controller |
05/18/2011 | CN201839007U Remote control automatic phase selecting switch |
05/18/2011 | CN201839006U 电力品质控制系统装置 Power quality control system devices |
05/18/2011 | CN201839005U Active power filter with hybrid structure |
05/18/2011 | CN201839004U 油井控制箱 Well Control Box |
05/18/2011 | CN201839003U Following-setting TSC resonance prevention type complete equipment for arc extinction and grounding compensation |
05/18/2011 | CN201836793U LED roadway illumination system with grid-connected power supply |
05/18/2011 | CN102067430A A voltage source converter |
05/18/2011 | CN102067408A Power control system for distributing power to power demanding facilities |