Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663)
10/2013
10/31/2013WO2013074586A3 Method and system for improving the effectiveness of planned power consumption demand response events
10/31/2013WO2013072226A3 Power supply system of a marine vessel
10/31/2013WO2013041443A3 Methods of controlling a combined plant including at least one generator and an energy store
10/31/2013US20130285472 Multi-modal load control system having occupancy sensing
10/31/2013US20130285461 Devices and methods for harvesting power from arrays of wind turbines
10/31/2013US20130285458 Power source switching circuit and power source switching system with power source switching circuit
10/31/2013US20130285453 Method and apparatus for seamless power transfer
10/30/2013EP2658109A1 Power converting apparatus, operating method thereof, and solar power generation system
10/30/2013EP2658083A1 Aircraft electrical system and related management method
10/30/2013EP2658082A1 Electricity management apparatus and electricity management method
10/30/2013EP2658071A2 A cascaded multilevel inverter and method for operating photovoltaic cells at a maximum power point
10/30/2013EP2658070A2 System for storing electric energy comprising an inverter
10/30/2013EP2656470A2 Method and system for control power in remote dc power systems
10/30/2013EP2656469A1 Method and apparatus for operating a domestic appliance and domestic appliance
10/30/2013EP2655121A2 Method of adjusting power absorbed by at least one electrically powered vehicle
10/30/2013CN203261262U Distributed multipurpose photovoltaic power generation device
10/30/2013CN203261261U Community intelligent power-using system
10/30/2013CN203261257U Solar photovoltaic power generation single-phase grid-connected inverter
10/30/2013CN203261232U Chopper-type power supply circuit for plasma arc cutting
10/30/2013CN203261047U Generator simulation grid connection apparatus
10/30/2013CN203261046U Efficiency-enhancing and energy-saving device for oil pumping unit in oil field
10/30/2013CN203261045U Off-grid direct current-to-alternating current conversion system
10/30/2013CN203261044U Photovoltaic grid connected controller
10/30/2013CN203261043U Battery energy storage system
10/30/2013CN203261042U Modularized low-voltage intelligent reactive-power compensation device
10/30/2013CN203261041U Intelligent modular low-voltage dynamic reactive power compensation and filtering device
10/30/2013CN203261040U Low-voltage dynamic reactive power compensation device
10/30/2013CN203261039U Intelligent synchronous zero-crossing switch of high voltage capacitor
10/30/2013CN203261038U Distribution-room reactive compensation cabinet monitoring system
10/30/2013CN203261037U Dynamic high-voltage reactive compensation control device
10/30/2013CN203261036U Reactive compensation device for high-power motor started by power supply with limited capacity
10/30/2013CN203261035U SVG dynamic reactive power compensator capable of normally working when system single-phase grounding happens
10/30/2013CN203261034U Digital controller for low-voltage intelligent dynamic reactive power compensation device in alternating current power grid
10/30/2013CN203261033U Voltage reactive unified regulator
10/30/2013CN203261032U Source network load interaction running-based integrated microgrid controller
10/30/2013CN203261031U Unified electric energy quality controller
10/30/2013CN203261030U Electric energy quality control device
10/30/2013CN203260459U Phase-controlled paralleling electric reactor
10/30/2013CN103380558A Method and system for control power in remote DC power systems
10/30/2013CN103380557A Apparatus for forecasting electric power load of industrial park, system and method
10/30/2013CN103378783A Excitation control circuit, excitation control method, and electrical excitation wind power system of excitation control circuit
10/30/2013CN103378736A Power supplying apparatus, method of operating the same, and solar power generation system including the same
10/30/2013CN103378647A Integrated composite power generation system of wind power generation and solar power generation
10/30/2013CN103378607A Parallel linkage for generators
10/30/2013CN103378606A Method for improving efficiency of micro-inverter
10/30/2013CN103378605A System and method for setting up, commissioning and operating a wind power plant
10/30/2013CN103378604A Smart micro-grid
10/30/2013CN103378603A Open-circuit fault detection device, converter controller, and energy conversion system and method
10/30/2013CN103378602A Distributed type tandem photovoltaic grid connected power generation system and current sampling correcting method
10/30/2013CN103378601A Primary frequency modulation method and device based on bang-bang control
10/30/2013CN103378600A Three-phase power factor correcting circuit and power factor improving method thereof
10/30/2013CN103378599A Intelligent reactive power compensation system by means of power line communication mode
10/30/2013CN103378598A Filter and designing method thereof
10/30/2013CN103378597A Inductive regional power grid accident exercise system
10/30/2013CN103378596A Climate-matching parameter and method of renewable energy power system
10/30/2013CN103378595A Resonance-considered hybrid active power filter parameter optimization configuration
10/30/2013CN103377815A 单相组合式变压器 Combined single-phase transformer
10/30/2013CN103377392A Power supply module, method for filtering out surge current, and intelligent card
10/30/2013CN103376344A Current detecting device and electric energy quality compensation system
10/30/2013CN103375350A Wind turbine with a primary and a secondary generator and method of operating such wind turbine
10/30/2013CN102545248B Modulation method for bidirectional transducer of flow battery energy storage grid-connected system
10/30/2013CN102545209B Online analysis method for comprehensive equivalent damping characteristics of regional generator group
10/30/2013CN102420426B Power grid partial loss reduction method based on injection power sensitivity
10/30/2013CN102386622B Fully active harmonic control device combining full compensation and fractionated compensation of plurality of machines
10/30/2013CN102368620B Wind-energy/ solar-energy/ storage/ ocean-current-energy new-energy isolated network stabilization operation integration control system and method thereof
10/30/2013CN102355151B Multi-functional grid-connected inverter and grid-connected inverter control method
10/30/2013CN102307020B Phase shift soft switch high frequency isolation photovoltaic grid-connected inverter
10/30/2013CN102306936B Magnetron reactor capable of adjusting starting point
10/30/2013CN102255316B In-phase static reactive power controller and control method thereof
10/30/2013CN102138266B Power demand-supply management server and power demand-supply management system
10/30/2013CN102136726B Method and device for detecting operation mode of convertor station
10/30/2013CN101944741B Load security domain researching method based on voltage level restraint
10/30/2013CN101809552B System and method for linking plurality of powered systems having different linking protocols to operate as single powered system
10/29/2013US8570047 Battery fault detection with saturating transformers
10/29/2013US8569911 Method and system for power management
10/29/2013US8569910 System and method for controlling the operation parameters response to current draw
10/29/2013US8569909 Method and arrangement to control an AC system
10/29/2013CA2724601C Wind turbine generator and output power control method
10/24/2013WO2013158813A1 Distributed electrical power network model maintenance
10/24/2013WO2013157729A1 Grid-connected energy storage system for preventing power from becoming backfed
10/24/2013WO2013157629A1 Natural energy generation facility and method for starting up same
10/24/2013WO2013157481A1 Energy management system, energy management method, program, server device, and client device
10/24/2013WO2013157209A1 Voltage control device, voltage control method, and power adjustment device
10/24/2013WO2013157186A1 Charging control device and vehicle charging system
10/24/2013WO2013157135A1 Power monitoring device and method
10/24/2013WO2013157091A1 Grid-tie inverter device
10/24/2013WO2013157030A1 Power monitoring device and power monitoring system
10/24/2013WO2013155819A1 Symmetrical ups power system based on nine-phase self-coupling phase-shifting transformer
10/24/2013WO2013155651A1 Method for controlling dynamic reactive power compensation in ac/dc hybrid power grid
10/24/2013WO2013155598A1 Method and system for regulating power of an electricity grid system
10/24/2013WO2013093214A3 Photovoltaic equipment, and method for generating electrical power at a predetermined value regardless of being subjected to power losses
10/24/2013WO2013068248A3 Method for providing control power using energy stores
10/24/2013WO2013034854A3 Method and device for optimized recharging of an electric battery
10/24/2013WO2013004252A3 Control device for damping grid oscillations
10/24/2013WO2012120353A3 Appliance and method for recharging batteries of electric vehicles or the like
10/24/2013US20130282314 Wide-area, real-time monitoring and visualization system
10/24/2013US20130279211 Modular Multilevel Converter
10/24/2013US20130278058 Universal power control device
10/24/2013DE102012206584A1 An ein elektrisches Hauptnetz anschließbares elektrisches Unternetzwerk To an electrical main network connectable electrical sub-network
10/24/2013DE102012007632A1 Anordnung mit Netzüberwachungssystem Arrangement with network monitoring system
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