| Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663) |
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| 06/15/2011 | CN102097826A Doubly salient electromagnetic wind power generation system structure and control method |
| 06/15/2011 | CN102097825A Insulated gate bipolar transistor (IGBT) type Crowbar cut-out method of double-fed wind power converter |
| 06/15/2011 | CN102097824A Control method of LCL (Lower Control Limit) type grid-connected inverter for restricting influence of grid voltage on grid-connected current |
| 06/15/2011 | CN102097823A Two-stage three-phase photovoltaic grid-connected system without direct-current (DC) voltage sensor and control method of system |
| 06/15/2011 | CN102097822A Energy recovery system based on Internet of things |
| 06/15/2011 | CN102097821A Grid-connected energy storage system and method of controlling grid-connected energy storage system |
| 06/15/2011 | CN102097820A Solar peak and valley power regulating system |
| 06/15/2011 | CN102097819A Conjugate multidirectional inverter power supply |
| 06/15/2011 | CN102097818A Photovoltaic reverse power control and protection system |
| 06/15/2011 | CN102097817A Photovoltaic reverse power controller |
| 06/15/2011 | CN102097816A Low-voltage traversing control method for double-fed wind power generation system |
| 06/15/2011 | CN102097815A Power networking and power supply mode |
| 06/15/2011 | CN102097814A Grid-connected inverter system for wind power generation |
| 06/15/2011 | CN102097813A Hybrid excitation triggered double exciting winding MCR (magnetically controlled reactor) |
| 06/15/2011 | CN102097812A Wind generating set and reactive power control method thereof |
| 06/15/2011 | CN102097811A Intelligent composite integrated switch |
| 06/15/2011 | CN102097810A Magnetic valve type magnetically controlled reactor (MCR) |
| 06/15/2011 | CN102097809A Thyristor valve block of static var compensator (SVC) |
| 06/15/2011 | CN102097808A Method for estimating reliability of electric distribution system containing distributive wind power, photovoltaic and energy storage devices |
| 06/15/2011 | CN102097807A System for preventing power system from generating PT (potential transformer) ferromagnetic resonance |
| 06/15/2011 | CN102097806A Low frequency deloading method for stabilizing frequency of interconnected power grids |
| 06/15/2011 | CN102097805A Optimization decision method for comprehensive energy-saving and loss-reducing technology of urban and rural distribution network |
| 06/15/2011 | CN102097804A Systems and methods for monitoring power devices |
| 06/15/2011 | CN102097803A Grading control micro power grid networking method |
| 06/15/2011 | CN102097802A Electrical energy management system and method |
| 06/15/2011 | CN102097801A Power grid system and power grid system-based power utilization management method |
| 06/15/2011 | CN102097793A Multi-current converter unified power quality conditioning device for power distribution system |
| 06/15/2011 | CN102097155A Copper tube and electric furnace energy-saving noninductive short net |
| 06/15/2011 | CN102096684A Grid real-time data integrating and sharing platform |
| 06/15/2011 | CN102096407A Chain type STATCOM control system based on EtherCA technology |
| 06/15/2011 | CN101635458B Coordinating voltage control method of provincial power network and regional power network based on two-way coordination constraint |
| 06/15/2011 | CN101582590B Zero passage triggering time-oriented sequential control circuit of 2-control 3-type thyristor switching capacitor |
| 06/15/2011 | CN101567561B Comparing and selecting system of power transmission network planning scheme |
| 06/15/2011 | CN101534012B Intelligent integrated comprehensive low-pressure distribution box |
| 06/15/2011 | CN101521381B Composite device for active dynamic reactive power compensation and filtering |
| 06/15/2011 | CN101504437B Method for searching electric network weakness causing voltage sag |
| 06/15/2011 | CN101488664B Anti-island effect protection method based on output current frequency disturbance |
| 06/15/2011 | CN101447676B Low-frequency oscillation analysis method for power system |
| 06/15/2011 | CN101388551B Electricity quality intelligent monitoring and resonating device |
| 06/15/2011 | CN101335456B Power distributing reactive optimizing compensation system based on GPRS and control method thereof |
| 06/15/2011 | CN101330215B TCR type SVC system debugging method for regulating and controlling voltage of transformer substation |
| 06/15/2011 | CN101299541B Supervoltage magnetic-controlled shunt reactor excitation equipment |
| 06/15/2011 | CN101154093B Method and apparatus for competing for host computer position in parallel system |
| 06/15/2011 | CN101009430B Apparatus, method and computer program product for tracking information in an electric grid |
| 06/14/2011 | US7960865 Apparatus and method for controlling the motor power |
| 06/14/2011 | US7960864 Arrangement and method for providing power to a circuit using switched capacitor techniques |
| 06/14/2011 | US7960859 Automatic sensing power systems and methods |
| 06/09/2011 | WO2011068368A2 Power control method and device |
| 06/09/2011 | WO2011068156A1 Power storage system and switching device |
| 06/09/2011 | WO2011068133A1 Charge/discharge system, power generation system, and charge/discharge controller |
| 06/09/2011 | WO2011067992A1 Electric-power selling management system |
| 06/09/2011 | WO2011066855A1 Method of initiating the load shedding within an electrical power system |
| 06/09/2011 | WO2011019550A3 System and method for associating a load demand with a variable power generation |
| 06/09/2011 | US20110133684 Electric Gas Stations Having Range Extension and Grid Balancing |
| 06/09/2011 | US20110133563 Method and apparatus for reduction of harmonics in a power supply |
| 06/09/2011 | US20110133552 Dual Use Photovoltaic System |
| 06/09/2011 | DE202011003152U1 Steuereinheit zur Speicherung von Energie und Steigerung des Eigenverbrauchs bei elektrischen Anlagen Control unit for storing energy and increase the captive use in electrical equipment |
| 06/09/2011 | DE202011003151U1 Gerät zur einfachen und kostengünstigen lokalen Versorgung einzelner Stromkreise mit Pufferspeicher und Steuerungsmöglichkeiten über Funk oder auf das Stromnetz aufmodulierter Signale Device for simple and cost local supply of individual circuits with buffer memory and control via radio or on the mains aufmodulierter signals |
| 06/09/2011 | DE202010002206U1 Verteiler Distributor |
| 06/09/2011 | DE202009018199U1 Freischaltsteuergerät Activation control unit |
| 06/09/2011 | DE102010053638A1 Kompensationsverfahren für asymmetrische Spannung, asymmetrischer Spannungskompensator, Drei-Phasenwandler-Steuerverfahren und Steuervorrichtung für Drei-Phasen-Wandler A method for compensating asymmetric voltage, asymmetric voltage compensator, three-phase converter control method and control apparatus for three-phase converter |
| 06/09/2011 | DE102010004131A1 Controller for controlling current consumption by electrical consumer in electrical energy distribution system in e.g. household appliance, has control unit program-technically designed to start process at time point |
| 06/08/2011 | EP2330711A1 Method for controlling interconnection system |
| 06/08/2011 | EP2330708A1 Transformer inrush current suppression device |
| 06/08/2011 | EP2330679A1 Method for controlling sodium-sulfur battery |
| 06/08/2011 | EP2330678A1 Secondary battery power control method |
| 06/08/2011 | EP2329581A1 Power conversion system for a multi-stage generator |
| 06/08/2011 | EP1779488B1 Network filter |
| 06/08/2011 | CN201860294U Alternating-current servo driver capable of realizing energy feedback |
| 06/08/2011 | CN201860283U Graded variable frequency heavy-load soft starting device based on variable reactor |
| 06/08/2011 | CN201860267U Frequency converter capable of cancelling harmonic wave and compensating reactive power |
| 06/08/2011 | CN201860126U Monitoring protection comprehensive device of low voltage unit |
| 06/08/2011 | CN201860125U Feedback system with relief device |
| 06/08/2011 | CN201860124U Photovoltaic power system structure |
| 06/08/2011 | CN201860123U Automatic switching device of power transformer |
| 06/08/2011 | CN201860122U Current type multilevel converter applied to wind power synchronization |
| 06/08/2011 | CN201860121U Reactive compensator |
| 06/08/2011 | CN201860120U Reactive power compensator with harmonic overrun protection function |
| 06/08/2011 | CN201860119U Integrated multi-loop low-voltage parallel-connection power capacitor |
| 06/08/2011 | CN201860118U Electricity-saving type converter |
| 06/08/2011 | CN201860117U Reactive-load compensation and active power-saving device |
| 06/08/2011 | CN201860116U Power factor correction compensation circuit |
| 06/08/2011 | CN201860115U AC capacitor fling-cut switch circuit |
| 06/08/2011 | CN201860114U Comprehensive automatic tracking energy-saving device |
| 06/08/2011 | CN201860113U Power filter component |
| 06/08/2011 | CN201860112U Special active power filter for oil electric drilling machine |
| 06/08/2011 | CN201860111U Reactance controlling device of dynamic harmonic filter |
| 06/08/2011 | CN201860110U Dynamic harmonic filter based on insulated gate bipolar transistors |
| 06/08/2011 | CN201860109U Filtering compensation energy-saving device of oil drilling generator set |
| 06/08/2011 | CN201860108U Power supply system |
| 06/08/2011 | CN201859178U Metering device for harmonic electric energy |
| 06/08/2011 | CN201858001U Power generation system with novel energy resource of intermediate-temperature water vapor |
| 06/08/2011 | CN102089951A Controller and method for controlling a device connected to a power supply |
| 06/08/2011 | CN102089837A A contactless power receiver and method of operation |
| 06/08/2011 | CN102088193A Photovoltaic synchronization grid full bridge six-switching tube inverter and control method thereof |
| 06/08/2011 | CN102088192A Single-phase single-stage current type photovoltaic grid inverter and control method thereof |
| 06/08/2011 | CN102088191A Method and system for cooperatively controlling low voltage ride through of full-power fan converter |
| 06/08/2011 | CN102088190A Grid-connected power storage system and method for controlling grid-connected power storage system |
| 06/08/2011 | CN102088189A Dynamic reactive power compensation device of line thyristor switching capacitor |
| 06/08/2011 | CN101649813B Integrated system for generating electricity by current, sea wave as well as tide kinetic energy and wind and solar energy |