Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663) |
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09/18/2013 | CN103311944A Unified power flow controller adopting modular structure and starting method for unified power flow controller |
09/18/2013 | CN103311943A Control method of hybrid energy storage system for stabilizing power fluctuation of intermittent type power source |
09/18/2013 | CN103311942A Control method of battery energy storage system for peak clipping and valley filling in distribution network |
09/18/2013 | CN103311941A Electric storage device control method, electric storage device control device, and electric storage device control system |
09/18/2013 | CN103311940A Integrated control method for micro-grid load and energy accumulation |
09/18/2013 | CN103311939A WAMS (wide area measurement system) based low-frequency oscillation coordinated damping control method for electric power system |
09/18/2013 | CN103311938A Control method for synchronous casting and cutting of three-phase capacitive load in three-phase circuit |
09/18/2013 | CN103311937A Low-voltage parallel capacitor compensating energy-saving system of low-voltage high-current electric device |
09/18/2013 | CN103311936A Control method for 3300V five-level anti-explosion reactive power compensation device |
09/18/2013 | CN103311935A Comprehensive compensation instruction current obtaining method of angle-shaped chain-type SVG (static var generator) of power distribution network |
09/18/2013 | CN103311934A System and method for multi-machine communication with SVG/APF (static var generator/active power filter) in parallel operation |
09/18/2013 | CN103311933A Smooth transition type subsection PID (proportion integration differentiation) control method for chained static var generator |
09/18/2013 | CN103311932A Double-DSP (digital signal processor) control system based on chained SVG (scalable vector graphics) |
09/18/2013 | CN103311931A Compact integration high voltage power capacitor device |
09/18/2013 | CN103311930A Sliding-mode control method for fuzzy PI parameter self-turning feedback linearization of active filter |
09/18/2013 | CN103311929A Device used for clearing voltage harmonic waves of power system |
09/18/2013 | CN103311928A Low-voltage dynamic active power filter |
09/18/2013 | CN103311927A Machine room distributed harmonic wave processing method |
09/18/2013 | CN103311926A Power system cascading failure simulation method based on unified power flow controller |
09/18/2013 | CN103311925A Identification method of complex power grid self-organization critical state |
09/18/2013 | CN103311924A Single-phase combined co-phased power supply and transformation structure |
09/18/2013 | CN103311923A Method for identifying cascading failure of power system |
09/18/2013 | CN103311922A Multiple FACTS (flexible alternating current transmission system) coordination control method for improving system multi-working-condition damping |
09/18/2013 | CN103311921A Double-power-supply incoming line switch and bus coupler switch interlocking wiring circuit |
09/18/2013 | CN103311920A Decomposition and coordination method for power flow of distribution network containing distributed power supplies |
09/18/2013 | CN102355192B Control method of reactive power of doubly fed wind power generator |
09/18/2013 | CN102315641B Energy-saving and energy-recycling control system of fitness equipment |
09/18/2013 | CN102299522B Motor test two-stage energy discharge system and discharge method thereof |
09/18/2013 | CN102280887B Voltage regulator connecting and disconnecting method of electric power system |
09/18/2013 | CN102244498B Power generating unit driver, power generating unit and energy output equipment in power grid |
09/18/2013 | CN102222916B Device and method for boosting network voltage at tail end of electrified railway power supply arm |
09/18/2013 | CN102221642B Power factor sampling method and power factor compensation equipment |
09/18/2013 | CN102208815B Household multi-energy system and control method thereof |
09/18/2013 | CN102189653B Electric force and power scheduling system for plastic injection molding machine or rubber product processing machine |
09/18/2013 | CN102185277B Method and device for controlling preferential tripping of power grid at sea |
09/18/2013 | CN102130461B Transformer-isolated static Var generator and control method thereof |
09/18/2013 | CN102111080B Photovoltaic grid-connected inverter and control method |
09/18/2013 | CN102035200B Method and device for processing signals |
09/18/2013 | CN101882788B Method and device for improving supply voltage at tail end of long supply arm of heavy haul railway |
09/18/2013 | CN101675569B Static VAR compensator apparatus |
09/18/2013 | CN101629553B Wind generation device, and method for operation of wind generation device during network loss |
09/18/2013 | CN101529713B Modulation control of power generation system |
09/17/2013 | US8538594 Method for assigning transmission line of electric network |
09/17/2013 | US8536735 Converter with input voltage balance circuit |
09/17/2013 | US8536734 Apparatus for inverting DC voltage to AC voltage |
09/17/2013 | US8536733 Master and slave power outlet system |
09/17/2013 | US8536732 Power supply system |
09/17/2013 | US8536731 Electric control and supply system |
09/17/2013 | CA2623262C Control method for direct current transmission by means of several power converters |
09/17/2013 | CA2621696C Cogeneration system |
09/16/2013 | DE202012102144U1 Netzgekoppeltes Photovoltaiksystem AC-coupled photovoltaic system |
09/12/2013 | WO2013134197A2 Method and apparatus providing point of interconnection control for power plants |
09/12/2013 | WO2013133592A1 System and method for controlling frequency |
09/12/2013 | WO2013132872A1 Frequency control method |
09/12/2013 | WO2013132833A1 Control device, conversion device, control method, and electricity distribution system |
09/12/2013 | WO2013132832A1 Control device and electricity distribution system |
09/12/2013 | WO2013132814A1 Supply-demand control system, supply-demand control method, and supply-demand control program |
09/12/2013 | WO2013132131A1 Single-core self-coupled inductor device |
09/12/2013 | WO2013093595A3 A method for operation of a shunt active compensator |
09/12/2013 | US20130235098 Load control device, image forming apparatus, and method of controlling load |
09/12/2013 | US20130234524 Control method for arranging dc/ac converters in parallel |
09/12/2013 | US20130234522 Power circuit, converter structure and wind power generation system thereof |
09/12/2013 | US20130234521 Method and device for multifunctional power conversion employing a charging device and having reactive power control |
09/12/2013 | US20130234518 Power Supply Circuits |
09/12/2013 | DE102012005023A1 System for autonomous provision of electricity over hydrogen during disaster, transfers hydrogen from second chemical reactor to plant or machine for conversion of hydrogen into electrical energy that is delivered to point of use |
09/12/2013 | DE102012004347A1 Decentralized charge controlling system for coordinative charging electric cars in low-voltage distributed network with electrical energy, has charge controller resuming prioritization of charging process based on charging parameters |
09/12/2013 | DE102012004225A1 Windenergiesystem Wind energy system |
09/11/2013 | EP2637298A2 System power control |
09/11/2013 | EP2637292A2 Direct current link circuit |
09/11/2013 | EP2637279A2 Modular energy portal with AC architecture for harvesting energy from electrical power sources |
09/11/2013 | EP2637278A1 Intelligent power control unit for low voltage ride through and its application |
09/11/2013 | EP2637277A1 Control apparatus |
09/11/2013 | EP2636115A2 Methods of operating dual fed systems |
09/11/2013 | EP2636114A2 System and method for the complete and unrestricted use of electrical energy generated in an uncontrolled manner |
09/11/2013 | CN203193291U Solar energy storage cell cabinet |
09/11/2013 | CN203193290U Distributed photovoltaic grid-connected power generation system |
09/11/2013 | CN203193289U Photovoltaic microgrid system having energy storage function |
09/11/2013 | CN203193288U Anti-reflux control box for inverters |
09/11/2013 | CN203193287U A three-phase non-isolated frequency converter energy feedback apparatus |
09/11/2013 | CN203193286U Intelligent low-voltage reactive power compensator |
09/11/2013 | CN203193285U Automatic reactive compensation control system based on 3G (the 3rd generation telecommunication) technology for power plant stations |
09/11/2013 | CN203193284U Equipment for electrical-network voltage stabilization and reactive power compensation |
09/11/2013 | CN203193283U Voltage deviation regulator |
09/11/2013 | CN203193282U Intelligent combined-type anti-harmonic capacitor |
09/11/2013 | CN203193281U Energy saving system for power distribution network |
09/11/2013 | CN203193280U Active power filtering system |
09/11/2013 | CN203193279U Micro-grid intelligent switching apparatus |
09/11/2013 | CN203193278U A machine cabinet used for an electrical filter and an electrical filter assembly |
09/11/2013 | CN203193148U Low-voltage line intelligent reactive compensation device |
09/11/2013 | CN203192563U Outdoor discharge coil |
09/11/2013 | CN103299544A Circuit arrangements for electronically controlled DC networks |
09/11/2013 | CN103299522A Method for connecting a photovoltaic installation to a power supply grid |
09/11/2013 | CN103299511A Method for integrating controls for captive power generation facilities with controls for metallurgical facilities |
09/11/2013 | CN103299503A Method for operation of a photovoltaic installation for feeding electrical power into a medium-voltage power supply grid |
09/11/2013 | CN103299335A Electricity control system |
09/11/2013 | CN103296954A Parallel transformer tap switch control based on reactive balance method |
09/11/2013 | CN103296951A Control method of birotor-structure variable-speed constant-frequency wind power generation system |
09/11/2013 | CN103296913A 逆变器及有源电力滤波系统 Inverter and Active Power Filter System |
09/11/2013 | CN103296907A Multilevel inverter and active power filter system |
09/11/2013 | CN103296873A Power supply and filter of power supply |