| Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663) |
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| 01/18/2012 | CN202121323U External power supply system of electric railway traction station |
| 01/18/2012 | CN202121322U Urban power grid risk assessment model generating device |
| 01/18/2012 | CN202121233U Single supply 10KV power distribution device of multi-loop wire outlet mode |
| 01/18/2012 | CN202121232U Multi-loop coil out type dual supply 10KV power distribution unit |
| 01/18/2012 | CN202121212U Circuit control device of low voltage power distribution cabinet |
| 01/18/2012 | CN202120742U Distribution transformer |
| 01/18/2012 | CN202117845U Large-power wind power generation system |
| 01/18/2012 | CN202117835U Inverted pendulum and ratchet wheel combined type wave energy generating set |
| 01/18/2012 | CN202117834U Double-fed asynchronous generator variable-speed constant-frequency type ocean current power-generating system |
| 01/18/2012 | CN102326310A Power inverter control for grid-tie transition |
| 01/18/2012 | CN102326089A Method for testing power distribution system and power distribution system analyser device |
| 01/18/2012 | CN102324865A Method for controlling three-phase current transformer in photovoltaic grid-connected power generating system |
| 01/18/2012 | CN102324784A Power grid model splicing method based on unified coding |
| 01/18/2012 | CN102324755A Low-voltage ride through control method and device for doubly-fed wind power generating system |
| 01/18/2012 | CN102324754A Double-feed wind power generator low-voltage through control system based on energy storage device |
| 01/18/2012 | CN102324753A Energy storage control method of battery energy storage system |
| 01/18/2012 | CN102324752A Wind power generation-combined ordered charge and discharge coordinated control system of pure electric vehicle |
| 01/18/2012 | CN102324751A Novel low-voltage reactive power compensation device |
| 01/18/2012 | CN102324750A Static reactive generating device |
| 01/18/2012 | CN102324749A STATCOM (Static Compensator) device based on switched system theory and robust control method for same |
| 01/18/2012 | CN102324748A Statcom control system based on chaos self-adaptive control |
| 01/18/2012 | CN102324747A Control method for double-feed wind power generation unit to support reactive power regulation of wind farm |
| 01/18/2012 | CN102324746A Auto disturbance rejection control technology-based direct-current busbar voltage control method of high-voltage chain-type STATCOM (Static Synchronous Compensator) power unit module |
| 01/18/2012 | CN102324745A Control method and device of hybrid type active power dynamic filter in intelligent power grid |
| 01/18/2012 | CN102324744A Distribution network power state calculating method based on breadth-first traversal |
| 01/18/2012 | CN102324743A Screening method for expected fault in online transient safety and stability assessment of power system |
| 01/18/2012 | CN102324742A Dynamic power flow control device and method of controllable transformer |
| 01/18/2012 | CN102324741A Micro-power grid off-grid energy balance and control device and method |
| 01/18/2012 | CN102323979A Processing method for converting fault records into harmonics |
| 01/18/2012 | CN102322401A Novel direct drive type permanent magnet wind generating set |
| 01/18/2012 | CN101496254B Power system and method for supplying AC power |
| 01/18/2012 | CN101496250B Converter control unit and method of using time-stamped voltage or current phasors |
| 01/18/2012 | CN101479910B Hvdc system and method to control a voltage source converter in a hvdc system |
| 01/18/2012 | CN101465549B Reconstruction configuration method for two six-pulse parallel connection commutation group valve |
| 01/18/2012 | CN101138141B Twelve-pulse high-voltage direct current transfer |
| 01/17/2012 | US8097979 System and method for optimizing regulated voltage output point |
| 01/17/2012 | US8097978 Extending backup times of uninterruptible power supplies |
| 01/17/2012 | US8097977 Multi-output power supply device |
| 01/17/2012 | US8097973 Power mains transformer data bridge |
| 01/17/2012 | US8097971 Wind turbine generator system |
| 01/16/2012 | CA2744789A1 Appliance incorporating load selectivity without employment of smart meters |
| 01/16/2012 | CA2710705A1 Step-down autotransformer for a power distribution system with non-linear loads |
| 01/12/2012 | WO2012006418A1 System for operating a vessel |
| 01/12/2012 | WO2012005464A2 Battery power supply device and power controlling method for same |
| 01/12/2012 | WO2012005274A1 Power control device |
| 01/12/2012 | WO2012005273A1 Power control device and power control method |
| 01/12/2012 | WO2012003921A2 Method for controlling pv installations in an electrical grid |
| 01/12/2012 | WO2012003857A1 Interface arrangement between ac and dc systems |
| 01/12/2012 | US20120007436 Isolated operation detection device |
| 01/12/2012 | US20120007423 Polyphase power distribution and monitoring apparatus |
| 01/12/2012 | US20120005818 Solar powered hot tub |
| 01/12/2012 | DE112009001732T5 System zum Regeln einer Lastspannung in Leistungsverteilungsstromkreisen und Verfahren zum Regeln einer Lastspannung in Leistungsverteilungsstromkreisen A system for controlling a load voltage in power distribution circuits and methods for controlling a load voltage in power distribution circuits |
| 01/12/2012 | DE102011051673A1 Energieverwaltungssystem Energy management system |
| 01/12/2012 | DE102011007037A1 Method for operating electrical power unit e.g. wind turbine, involves performing load balancing of synchronous generator and observing compliance of synchronous generator with power supply rules |
| 01/12/2012 | DE102010026299A1 Verfahren zur Steuerung von PV-Anlagen in einem Stromversorgungsnetz Method for controlling of PV systems in a power supply network |
| 01/12/2012 | DE102010026174A1 System und Verfahren zum Speichern von Netzparameterdaten eines Stromversorgungsnetzwerkes System and method for storing network parameter data of a power supply network |
| 01/12/2012 | CA2804783A1 System for operating a vessel |
| 01/11/2012 | EP2405551A2 Ring power distribution loop |
| 01/11/2012 | EP2404779A1 Charging of electrical vehicles |
| 01/11/2012 | EP2404356A1 Poly-phase reactive power compensator |
| 01/11/2012 | EP1886392B1 Method for avoiding undesired, measurement error-induced protective tripping within a protection system of an hvdc transmission system |
| 01/11/2012 | CN202111651U Direct-current drive digital controller of high-power IGBT (insulated gate bipolar translator) rectification circuit |
| 01/11/2012 | CN202111642U Solar energy electric energy bidirectional transformation system |
| 01/11/2012 | CN202111641U Solar energy generating and circuit-connecting apparatus for power transmission iron tower |
| 01/11/2012 | CN202111616U Distorted harmonic wave absorption network of improved rectification equipment of electrostatic precipitation |
| 01/11/2012 | CN202111527U Pole top switch controller with harmonic wave monitoring function and overhead line harmonic wave monitoring system |
| 01/11/2012 | CN202111493U Three-phase high-power-factor uninterrupted power source |
| 01/11/2012 | CN202111478U Parallel grid-connected triple cogeneration control system for controlling multiple generators by using PLC (Programmable Logic Controller) |
| 01/11/2012 | CN202111477U Power supply and distribution system of electric automobile centralized charging station |
| 01/11/2012 | CN202111476U Intelligent power saver based on electromagnetic balance |
| 01/11/2012 | CN202111475U Static reactive power generator with compact structure |
| 01/11/2012 | CN202111474U Closed-loop control system with rapid prediction response for active filter |
| 01/11/2012 | CN202111473U Hybrid active power filter device |
| 01/11/2012 | CN202111472U Voltage detecting circuit connected with active power filter in series |
| 01/11/2012 | CN202111389U Single supply 10 kV power distribution unit with transformer capacity no greater than 800 kVA |
| 01/11/2012 | CN202110930U Distribution transformer capable of automatically regulating capacity and voltage |
| 01/11/2012 | CN102318158A Ac-connection of an off-shore wind-park to an on-shore electricity grid and booster transformer for providing such an ac-connection |
| 01/11/2012 | CN102318157A Control method and apparatus |
| 01/11/2012 | CN102318156A Method for operation of a permanent magnet synchronous machine, and a device in an electric system comprising such a machine |
| 01/11/2012 | CN102315810A Integrated gate commutated thyristor based high-power pumped storage unit starting system |
| 01/11/2012 | CN102315781A Cabinet system of server |
| 01/11/2012 | CN102315652A Photovoltaic grid-connected control system based on double-bridge SMES (Superconducting Magnetic Energy Storage) and control method |
| 01/11/2012 | CN102315651A Crowbar circuit as well as device for double-fed induction generator to rid through power grid fault and thereof |
| 01/11/2012 | CN102315650A Optimizing method for power supply volume of micro gas turbine adopting microgrid under grid-connected mode |
| 01/11/2012 | CN102315649A Single-phase single-stage type grid-connected photovoltaic inverter |
| 01/11/2012 | CN102315648A 100-kilowatt nickel-hydrogen energy storage monitoring system and monitoring method thereof |
| 01/11/2012 | CN102315647A Active power filter based on auxiliary resonant soft switching technology and soft start method |
| 01/11/2012 | CN102315646A Maximum power capability based power distribution network communication validity and communication simplifying method |
| 01/11/2012 | CN102315645A Energy router for distributed power generation |
| 01/11/2012 | CN102315644A Self-adaptive delay feedback static bifurcation control system and control method thereof |
| 01/11/2012 | CN102315643A Three defensive lines based automatic batch fault set generation method |
| 01/11/2012 | CN102315642A Environmental impact assessment method of power grid planning scheme |
| 01/11/2012 | CN102315641A Energy-saving and energy-recycling control system of fitness equipment |
| 01/11/2012 | CN102315640A Failure set handling system and method for multilayer power grid |
| 01/11/2012 | CN102315639A Method and system for adjusting load-bearing capacity of external communication channel of power grid supply region |
| 01/11/2012 | CN102314548A Apparatus and method for energy management |
| 01/11/2012 | CN102312790A Novel ventilating pipeline wind power generation system and generator |
| 01/11/2012 | CN102312777A Wind turbine and method for operating a wind turbine |
| 01/11/2012 | CN101795082B Megawatt direct-drive wind power grid-connection soft-switching converter |
| 01/11/2012 | CN101728833B Reactive power compensation method for low-voltage distribution line |