Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663) |
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04/26/2011 | US7932621 Method and apparatus for an integrated wind-solar energy system utilizing an existing wind turbine infrastructure |
04/21/2011 | WO2011046453A1 Inductively controlled series resonant ac power transfer |
04/21/2011 | WO2011045447A1 Solar generation method and system |
04/21/2011 | WO2011045184A1 District heat prediction |
04/21/2011 | WO2011018267A3 Charging station for electric vehicles having network stabilization |
04/21/2011 | WO2010147949A3 Supplying grid ancillary services using controllable loads |
04/21/2011 | US20110093129 Energy storage at elevated voltage in a radar level gauge |
04/21/2011 | US20110089868 Harmonic compensation circuit and method for an led light unit |
04/21/2011 | US20110089852 Addressable LED Light String |
04/21/2011 | US20110089767 Arrangement related to offshore cable system |
04/21/2011 | US20110089766 Apparatus for phase rotation for a three-phase AC circuit |
04/21/2011 | US20110089765 Power converting apparatus |
04/21/2011 | US20110089759 Home Power Supply System |
04/21/2011 | DE102009045242A1 Verfahren zum Betreiben eines Haushaltsgeräts und Haushaltsgerät zur Durchführung des Verfahrens A method of operating a domestic appliance and home appliance for performing the method |
04/21/2011 | DE102008046606B4 Photovoltaikanlage Photovoltaic system |
04/21/2011 | CA2777873A1 Solar generation method and system |
04/20/2011 | EP2312744A1 Power distribution systems |
04/20/2011 | EP2312720A2 Device for supplying voltage to a work system |
04/20/2011 | EP2312719A1 Investigating timing reliability in relation to control of a power transmission system |
04/20/2011 | EP2312718A2 Electrical equipment management system |
04/20/2011 | EP2311165A1 Low voltage ride through |
04/20/2011 | EP2311164A1 Method and system for controlling a wind power plant comprising a number of wind turbine generators |
04/20/2011 | EP2203965B1 Electrical switchgear, particularly for connecting generators and thrusters in dynamically positioned vessels |
04/20/2011 | EP2151033B1 Power control system |
04/20/2011 | EP1512214B1 Current-compensated choke and circuit arrangement comprising the current-compensated choke |
04/20/2011 | CN201805274U Multifunctional intelligent TTU controller |
04/20/2011 | CN201805239U Device of intelligent switching transformer bank |
04/20/2011 | CN201805238U Intelligent control system for photovoltaic grid-connected power plant |
04/20/2011 | CN201805237U High voltage frequency conversion electricity transmission distributing and adjusting device for wind power generation |
04/20/2011 | CN201805236U Series type LVRT (low voltage ride through) control device of wind generating set |
04/20/2011 | CN201805235U Extra/ultra-high voltage series capacitor compensating device having current transfer branch circuit |
04/20/2011 | CN201805234U Comprehensive voltage reactive power control system with harmonic suppression function |
04/20/2011 | CN201805233U High-voltage SVC (static var compensator) control panel based on DSP (digital signal processor) |
04/20/2011 | CN201805232U Superconductive controllable series capacitance compensator |
04/20/2011 | CN201805231U 动态无功补偿装置 Dynamic reactive power compensation device |
04/20/2011 | CN201805230U Power line capacitance compensation circuit controlled by thyristor |
04/20/2011 | CN201805229U Photoelectric trigger device based on high-pressure thyristor switched capacitor |
04/20/2011 | CN201805228U Special low-voltage active power filter for tobacco industry |
04/20/2011 | CN201805227U Power energy-saving device |
04/20/2011 | CN201805226U Power saving device |
04/20/2011 | CN201805225U IGBT control-based stepless adjusting arc suppression coil |
04/20/2011 | CN201802564U Half direct-driving and full-power wind power generating device |
04/20/2011 | CN201802563U Full-power squirrel-cage set wind power generation apparatus |
04/20/2011 | CN201801247U Energy feedback system of elevator |
04/20/2011 | CN102026447A Daylight lamp constant current driving method and driving circuit thereof |
04/20/2011 | CN102025182A Modular charging/discharging system of power battery pack of multifunctional electromobile |
04/20/2011 | CN102025167A Switch power supply energy-saving aging system |
04/20/2011 | CN102025166A Power-generating interconnected topological structure of transformerless water-turbine generator |
04/20/2011 | CN102025165A Transformerless battery energy storing topological structure |
04/20/2011 | CN102025164A Automatic grid connection system for wind turbine asynchronous generator |
04/20/2011 | CN102025163A Adjusting method for dynamic reactive compensation controller |
04/20/2011 | CN102025162A Three-level-half-bridge-based high speed railway power regulator |
04/20/2011 | CN102025161A Five-level dual-buck parallel active power filter (APF) and dual-frequency half-wave control method thereof |
04/20/2011 | CN102025160A Intelligent combined power capacitor |
04/20/2011 | CN102025159A Comprehensive evaluation method and system of stability of quiescent voltage |
04/20/2011 | CN102025158A Directly-coupled series compensation device and compensation method thereof |
04/20/2011 | CN102025157A Command current extraction method and compensating current generation method for active power filter |
04/20/2011 | CN102025156A Transformer rectifying system of reversible cold rolling mill |
04/20/2011 | CN102025155A DC (direct current) distribution-based microgrid system |
04/20/2011 | CN102025154A Intelligent power consumption management system |
04/20/2011 | CN102025153A Method for accurately calculating maximum power supply capacity of medium voltage distribution network |
04/20/2011 | CN102025152A Electric energy quality evaluation method of electrified railway accessed power system |
04/20/2011 | CN102025151A Method for acquiring power flow cross section data of online operation state of power grid |
04/20/2011 | CN102025150A Method and system for demand response in a distribution network |
04/20/2011 | CN102025149A 能量管理系统及能量管理方法 Energy management systems and energy management |
04/20/2011 | CN102025148A Power-line network system with data relay function |
04/20/2011 | CN102025147A Self-adaptive low-voltage power saving system |
04/20/2011 | CN102022283A Double power generator combined wind power generator unit driven directly by ultra-large wind wheel |
04/20/2011 | CN102022275A Wind generating set with bottom driving |
04/20/2011 | CN102022272A Intelligent gradient stable high-quality and high-power wind generating set |
04/20/2011 | CN101621202B Controller of high-voltage chain type static and synchronous compensator |
04/20/2011 | CN101572440B Power grid code analysis and test method |
04/20/2011 | CN101567564B Voltage and power regulator based on the composite energy storage of storage battery and super capacitor |
04/20/2011 | CN101534010B Method for solving the local boundary of cut-set voltage stability regions on the basis of perturbation |
04/20/2011 | CN101465545B Detection method for hyposynchronous resonance of series complement system |
04/20/2011 | CN101436780B Self-healing control method for urban power distribution network |
04/20/2011 | CN101237148B Low-frequency surge detection and protection method for power system |
04/20/2011 | CA2717953A1 String and system employing direct current electrical generating modules and a number of string protectors |
04/19/2011 | US7929322 Voltage sag generator device |
04/19/2011 | US7928715 Switching regulator |
04/19/2011 | US7928604 Universal system for controlling automated transfer switches in response to external stimuli |
04/19/2011 | US7928600 Power source device and magnetic resonance imaging apparatus using the same |
04/14/2011 | WO2011043967A2 Method and apparatus of stored energy management in battery powered vehicles |
04/14/2011 | WO2011043891A2 System and apparatus for interconnecting an array of power generating assemblies |
04/14/2011 | WO2011042943A1 Specification selection device of power storage system and specification selection method of power storage system |
04/14/2011 | WO2011042787A1 Electric power distribution system |
04/14/2011 | WO2011042786A1 Energy storage system |
04/14/2011 | WO2011042785A1 Electric power management system |
04/14/2011 | WO2011042781A1 Power supply system |
04/14/2011 | WO2011042567A1 Reactive-power-capable inverter |
04/14/2011 | WO2011006796A3 Device for inverting an electric parameter, having a star point reactor |
04/14/2011 | US20110087382 Process for managing and curtailing power demand of appliances and components thereof |
04/14/2011 | US20110084556 System and apparatus for interconnecting an array of power generating assemblies |
04/14/2011 | US20110084551 Photovoltaic system with managed output |
04/14/2011 | DE102009049082A1 Integriertes Energie- und Parkmanagement für Elektrofahrzeuge Integrated Energy and park management for electric vehicles |
04/14/2011 | DE102009048784A1 Verfahren zur Stromversorgung eines Stromverbrauchers A method for supplying power to a power consumer |
04/13/2011 | EP2309639A1 Reactive power-capable inverter |
04/13/2011 | EP2309614A2 Utility-interactive inverter system architecture and method of operation thereof |
04/13/2011 | EP2158671B1 Inverter unit without transformer for thin-film solar panels |
04/13/2011 | CN201797473U Reactive compensation soft start device based on variable reactance |