Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663)
01/2013
01/10/2013US20130009469 Hybrid energy system
01/10/2013US20130009463 Power supply system
01/10/2013DE102011106877A1 Asynchronmaschine-Photovoltaikgenerator Asynchronous photovoltaic generator
01/10/2013DE102011078895A1 Energy network system useful for generating and transferring electrical energy between primary energy producers and consumers, comprises e.g. primary energy generating units, energy consumption units, and frequency control units
01/10/2013DE102011078656A1 Verfahren zum netzgeführten Betreiben einer Industrieanlage A method of operating a network controlled industrial plant
01/10/2013DE102011056377A1 Energiespeicher mit mindestens einem Basismodul Energy storage with at least one base module
01/10/2013DE102011051548A1 Betriebsverfahren für einen Wechselrichter und netzfehlertoleranter Wechselrichter Operating procedures for an inverter and network fault tolerant inverter
01/10/2013CA2840896A1 Methods and systems for determining an association between nodes and phases via a smart grid
01/09/2013EP2544332A2 Power supply system
01/09/2013EP2544329A1 Method and arrangement for connecting a plurality of solar panel units to an inverter
01/09/2013EP2544328A2 Power supply system
01/09/2013EP2544327A1 Energy storage assembly and fluctuating load
01/09/2013EP2544326A1 Photovoltaic assembly
01/09/2013EP2544325A2 Scale-free routing topology for a power network
01/09/2013EP2544015A2 Shadow detection apparatus using fiber optics for solar-based power generation plants
01/09/2013EP2543238A1 Parallel-connected ballast circuits
01/09/2013EP2543127A1 Dynamic synchronization system
01/09/2013EP2543124A1 Ac/dc converter station and a method of operating an ac/dc converter station
01/09/2013EP2543123A1 Duty cycle controller
01/09/2013DE202011106224U1 Intelligentes Mittelspannungsnetz Intelligent medium voltage network
01/09/2013CN202663353U Alternating-current speed regulation system suitable for mine fan
01/09/2013CN202663350U Speed-governing control system based on multilevel matrix frequency converter for mine hoist
01/09/2013CN202663186U Power supply module of railway communication signal system
01/09/2013CN202663171U Formation instrument for lithium-ion accumulator
01/09/2013CN202663129U High-efficiency regenerated electric energy grid connection feedback device
01/09/2013CN202663128U Pulse power transmission system
01/09/2013CN202663127U Fuzzy-controller-based micro-grid battery energy storage system frequency modulation control device
01/09/2013CN202663126U Three-phase autobalance reactive synchronous compensation device
01/09/2013CN202663125U Static synchronous reactive compensation device
01/09/2013CN202663124U Compensated type startup disk for 3KV1100USRT (Universal Synchronous Receiver Transmitter) chiller
01/09/2013CN202663123U Programmable logic controller (PLC)-based iron alloy smelting electric arc furnace low voltage reactive compensation device
01/09/2013CN202663122U Low-voltage filtering reactive compensation device for iron alloy smelting electric furnace
01/09/2013CN202663121U Casing of low-voltage reactive compensation device of ferroalloy electric furnace
01/09/2013CN202663120U Reactive compensation structure for ferroalloy smelting electric furnace
01/09/2013CN202663119U Novel power module of dynamic reactive-power compensation device
01/09/2013CN202663118U Microcomputer automatic energy-saving regulation system structure
01/09/2013CN202663117U Power inversion unit structure of static var generator
01/09/2013CN202663116U Vehicle-mounted capacity-regulating high-voltage power capacitor device
01/09/2013CN202663115U Reactive power compensation device for electric power system
01/09/2013CN202663114U Voltage compensation system
01/09/2013CN202663113U Active power filter device
01/09/2013CN202663112U Power compensation elimination passive filter adjustment device
01/09/2013CN202663111U Active filtering compensation device for intermediate frequency furnace
01/09/2013CN202663110U Voltage transformer and high-voltage circuit structure
01/09/2013CN202663007U Sealed combined transformer substation with resonance elimination filtering device
01/09/2013CN202662978U Cabinet of low-voltage reactive compensation device of ferroalloy electric furnace
01/09/2013CN202662447U Integrated magnetic control reactor with excitation control valves
01/09/2013CN202662432U Bevel-type dual-three-column triangular oblique angle elliptical iron core magnetic control electric reactor
01/09/2013CN202659419U Novel wind power generation set
01/09/2013CN102870314A Powering of devices
01/09/2013CN102870310A Maximum power point tracking for a power generator
01/09/2013CN102870309A Method and system for facilitating design of a high voltage (HVDC) control system, an HVDC system and a method for optimising an HVDC system
01/09/2013CN102870308A Enhancing wide area control reliability of a power transmission system
01/09/2013CN102870307A Power supply module
01/09/2013CN102870306A System and method for providing dynamic power management
01/09/2013CN102869174A Compensating device for roadway lighting single lamp
01/09/2013CN102868309A PWM (Pulse-Width Modulation) rectifier controlling method and PWM rectifier
01/09/2013CN102868285A Resonance control method
01/09/2013CN102868217A Systems, methods, and apparatus for maintaining stable conditions within a power grid
01/09/2013CN102868205A Electric vehicle and renewable energy complementary system
01/09/2013CN102868195A System for charging electromobile by utilizing electrical energy of scene electric supply complementation street lamp
01/09/2013CN102868184A Method for implementing automatic location of position angle of rotor of double-fed motor
01/09/2013CN102868183A Sliding-mode variable structure control method of single phase grid-connected inverter based on multi-resonant sliding mode surface
01/09/2013CN102868182A Method and device for controlling average current of wind driven generator
01/09/2013CN102868181A Anti-backflow method and device for grid-connected power generation system
01/09/2013CN102868180A Wind power generation system based on open winding structure and fault tolerance control method thereof
01/09/2013CN102868179A Solar anti-interference and anti-reflux unidirectional shielding system
01/09/2013CN102868178A Method for improving grid-connected transient stability in automatic voltage control system of wind power plant
01/09/2013CN102868177A Method for automatically identifying and correcting impedance in wind power plant PCC (program-controlled computer) system
01/09/2013CN102868176A Energy feedback system based on replacing brake resistors of multiple stator frequency converters with inverter bridge
01/09/2013CN102868175A Reverse power protection method and distributed power generation system
01/09/2013CN102868174A Photovoltaic grid-connected system for restraining chaos based on DSP (Digital Signal Processor) as well as working method thereof
01/09/2013CN102868173A Distributive independent photovoltaic power generation system and method
01/09/2013CN102868172A Electric energy regulator and method for operating same
01/09/2013CN102868171A Control methods for the synchronisation and phase shift of the pulse width modulation (pwm) strategy of power converters
01/09/2013CN102868170A Single-phase static reactive power compensator based on IGBT (Insulated Gate Bipolar Translator)
01/09/2013CN102868169A Three-phase static reactive compensator based on IGBT
01/09/2013CN102868168A Three-phase static reactive compensator based on high-speed self-turn-off device
01/09/2013CN102868167A Reactive voltage control method of photovoltaic power station
01/09/2013CN102868166A Thyristor valve module for horizontal water-cooling static var compensator
01/09/2013CN102868165A Draught fan and method for estimating wattless power capacity of wind power collecting lines
01/09/2013CN102868164A Low-frequency voltage load-reducing linkage coordination control method
01/09/2013CN102868163A Three-phase soft phase-locked ring for adaptive grid-connected converter
01/09/2013CN102868162A Calculation method for values of bridge arm reactors of modular multilevel converter
01/09/2013CN102868161A Optimization method of network variable structure with distributed type power supply distribution system
01/09/2013CN102868160A Macrozone load modeling method in intelligent power system
01/09/2013CN102868159A Control equipment and monitoring method for electrical main topological integrity
01/09/2013CN102868158A Active electric quantity differential motion out-of-limit event judgment method of integrated lectric energy management system
01/09/2013CN102868157A Robust estimation state estimating method based on maximum index absolute value target function
01/09/2013CN102868156A Magnetic field choked flow and resistive-inductive load power controller
01/09/2013CN102868155A Power load forecasting control system and method
01/09/2013CN102868154A Wind power plant based on series connection structure and control method for wind power plant based on series connection structure
01/09/2013CN102867629A Device for increasing response speed of magnetically controlled reactor
01/09/2013CN102867628A Magnetic integration type integrated filter inductance transformer
01/09/2013CN102867623A Novel electric stove transformer with compensation terminals
01/09/2013CN102185550B Double-unit wind power generation grid-connected system and control method thereof
01/09/2013CN102170139B Topology of series connection type voltage transient variation compensation circuit and control method thereof
01/09/2013CN102157938B Method for online identifying lower-voltage stability nodes of power system
01/09/2013CN102110984B Control method of hybrid four-leg shunt active power filter
01/09/2013CN101982918B Direct driving wind power generation system based on double SVPWM current mode convertor and control method thereof