Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663)
12/2010
12/08/2010CN101908765A Soft-switching low-voltage intelligent power capacitor
12/08/2010CN101908764A Self-healing control method of electric network
12/08/2010CN101908763A Method for controlling distribution network closed loop
12/08/2010CN101494384B Control circuit for multi-machine parallel connection of sine-wave generator and multi-machine parallel connection system
12/08/2010CN101431238B Power distribution network power supply capacity evaluation method considering N-1 criterion
12/08/2010CN101413981B Electric power system operation standby reliability testing system
12/08/2010CN101359831B Modular active electric filter device
12/08/2010CN101237134B DC high current ice fusion device with static dynamic no-power compensation function
12/07/2010US7848120 Voltage-sourced HVDC system with modulation function
12/07/2010US7847512 Solar powered DC load system
12/07/2010US7847437 Efficient operating point for double-ended inverter system
12/07/2010US7847431 Method and system for electrical power generation
12/05/2010CA2717125A1 Utility grid stabilization apparatus and method, as well as wind power generating system
12/05/2010CA2682789A1 Centralized electrical distribution system
12/02/2010WO2010136968A1 Apparatus and method for managing and conditioning photovoltaic power harvesting systems
12/02/2010WO2010136876A1 Synchronous generator protection
12/02/2010WO2010136335A2 Device for compensating harmonics
12/02/2010WO2010136328A1 Household appliance with energy management and method therefor
12/02/2010WO2010136041A2 Two global precise times for synchronization
12/02/2010WO2010136033A1 Converter system for a wind turbine
12/02/2010WO2010135937A1 Energy storage system for balancing load of power grid
12/02/2010WO2010115224A3 Energy supply in an electric network
12/02/2010US20100301676 Solar power generation system including weatherable units including photovoltaic modules and isolated power converters
12/02/2010US20100301672 Transportable modular multi-appliance device
12/02/2010US20100301671 Power extraction from signal sinks
12/02/2010DE102009023626A1 Vorrichtung zur Kompensation von Oberschwingungen An apparatus for compensating harmonics
12/01/2010EP2256915A1 Electric energy feedback device
12/01/2010EP2256894A2 Solar power generation system including weatherable units including photovoltaic modules and isolated power converters
12/01/2010EP2256893A1 Series voltage compensator and method for series voltage compensation in electrical generators
12/01/2010EP2256579A1 Solar inverter and control method
12/01/2010EP2256341A1 System and method for controlling a wind farm
12/01/2010EP2255426A1 Arrangement related to offshore cable system
12/01/2010EP2255425A1 Electronic dc circuit breaker
12/01/2010EP1540811B1 Operating method for a wind turbine with a supersynchronous cascade
12/01/2010CN201663478U Automatic ship and warship power station based on network computing
12/01/2010CN201663454U Water grid-connected photovoltaic system
12/01/2010CN201663453U Small-sized wind power generation synchronization sine wave inverter with overpressure cut-off protection function
12/01/2010CN201663452U Dry type pressure regulation and capacity regulation reactive power automatic compensation device
12/01/2010CN201663451U Automatic high-voltage reactive compensating controller
12/01/2010CN201663450U DC capacitance and equalizing resistance modular structure for var generator
12/01/2010CN201663449U Stepless dynamic compensation device
12/01/2010CN201663448U Automatic power quality regulating device
12/01/2010CN201663447U Intelligent control system of electromagnetic precise control type energy-saving device
12/01/2010CN201663446U Intelligent energy-saving control system and temperature and time control system of electromagnetic accurate regulating and controlling type electricity-saving device
12/01/2010CN201663445U Time-sharing electricity-saving control device of frequency converter
12/01/2010CN201663444U Wind power prediction device for communication based on 3G network
12/01/2010CN201663443U Electric management device for household appliance
12/01/2010CN201663442U EMS system for power system in central cities
12/01/2010CN201663441U Filter lightning protector for power sources
12/01/2010CN201663044U Resin casting dry type autotransformer used for reactive power compensation
12/01/2010CN101904083A 功率控制 Power Control
12/01/2010CN101902146A Current type control method of three-phase inverter in distributed generation system
12/01/2010CN101902073A Remote monitoring and control system of power filter device
12/01/2010CN101902072A New method for identifying disturbance information of large-scale interconnected power system
12/01/2010CN101902052A Wind power station whole low voltage ride through (LVRT) system
12/01/2010CN101902051A Efficient energy conversion device for solar cell panel, array and application method
12/01/2010CN101902050A Solar power generation system including weatherable units including photovoltaic modules and isolated power converters
12/01/2010CN101902049A Method for operating an energy storage system
12/01/2010CN101902048A High-speed railway negative-sequence and harmonic compensation system based on two-phase three-wire system converter
12/01/2010CN101902047A Movable bifurcation control system based on DSP (Digital Signal Processor)
12/01/2010CN101902046A Non-liner switching control method of single-phase shunt active power filter
12/01/2010CN101902045A Method for reducing harmonic pollution to power grid from asynchronous wind driven generator
12/01/2010CN101902044A Harmonic filter
12/01/2010CN101902043A 充电电路管理装置及无线终端 Charging circuit management device and wireless terminal
12/01/2010CN101901722A Interrupting chamber, HVDC bypass interruptor and HVDC-conversion substation with such a chamber
12/01/2010CN101901721A Interruptor chamber, HVDC bypass interrupter and high voltage direct current converting plant comprising such chamber
12/01/2010CN101577428B Single-phase module combined active power filter for tractive power supply
12/01/2010CN101546472B Implement method of integrated universal simulation test system for electric network scheduling and electric quantity collection
12/01/2010CN101534065B Asymmetric direct power control method of grid-connected three-phase voltage source converter
12/01/2010CN101510694B Control system for wide domain wind-powered peak regulation of electric power system
12/01/2010CN101446991B Numerical integration method for electric power system full dynamic simulation
12/01/2010CN101428571B Direct net-attached mode of traction power supply high voltage synthetic compensating gear
12/01/2010CN101408577B Analysis method of low-frequency oscillation node contribution factor based on wide field measuring information
12/01/2010CN101373896B Feeding power utilization system balance energy-saving apparatus and operation method thereof
12/01/2010CN101369731B Regulation control method of reconfigurable static reactive-power compensation/DC de-icing composite apparatus
12/01/2010CN101364736B Series hybrid active electric filter device
12/01/2010CN101355253B Apparatus for generating to feed civil electricity using motion equipment
12/01/2010CN101349731B Real time evaluating method of voltage stability
12/01/2010CN101340111B Uninterrupted switching system of commercial power and generated power and method thereof
12/01/2010CN101242086B Ice and snow fusion method for air power transmission line
12/01/2010CN101212142B Electric system stabilizing method and stabilizer
11/2010
11/30/2010US7844365 Field-mounted process device
11/30/2010US7843171 Method and apparatus for battery charging based on battery capacity and charging source constraints
11/30/2010US7843084 Electronic device capable of automatically selecting a power source
11/30/2010US7843081 Power-controllable outlet receptacle
11/30/2010CA2581917C Wind park with robust reactive power adjustment system and method for the operation thereof
11/25/2010WO2010089396A3 Smart metering device with phase selector
11/25/2010WO2010088545A3 Methods and apparatus for design and control of multi-port power electronic interface for renewable energy sources
11/25/2010WO2009060321A9 Intelligent infrastructure power supply control system
11/25/2010US20100295371 Sequential control master-slave socket device
11/25/2010US20100295370 Interface for connecting a converter apparatus to a two-pole line
11/25/2010US20100295321 Method for Generating Electrical Power Using a Tethered Airborne Power Generation System
11/25/2010DE102010028052A1 Ladesteuervorrichtung und Elektrizitätsspeichersystem A charging control apparatus and electricity storage system
11/24/2010EP2254217A2 Reactive Power Control for Operating a Wind Farm
11/24/2010EP2253059A1 Electrical charging and/or discharging device
11/24/2010EP2253058A2 System and methods for scheduling power usage
11/24/2010EP2067227B1 Drive energy supply in rail vehicles
11/24/2010CN201656907U Switch power supply of motor electricity economizer
11/24/2010CN201656905U Speed regulating system of a slip power feedback type asynchronous motor with large power and medium-high voltage
11/24/2010CN201656848U Access system for fully utilizing wind energy and solar energy