Patents
Sitemap › H02 - Generation, conversion, or distribution of electric power › H02J - Circuit arrangements or systems for supplying or distributing electric power; Systems for storing electric energy › H02J 3 - Circuit arrangements for ac mains or ac distribution networks
Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663)
07/2012
07/18/2012CN102593862A Photovoltaic grid-connected inverter and control method thereof
07/18/2012CN102593861A Intelligent comprehensive control method for distribution transformers
07/18/2012CN102593860A Automatic generation control and automatic voltage control integrated substation system of power plant
07/18/2012CN102593859A Three-phase UPQC (Unified Power Quality Controller) topology circuit based on MMC (Multi Media Card)
07/18/2012CN102593858A Method for controlling operation of static energy supply units and controllers for static energy supply units
07/18/2012CN102593857A Method for configuring multiport direct-current transmission control system
07/18/2012CN102593856A Short circuit ratio based subsynchronous oscillation evaluation method for direct current isolated island power transmission system
07/18/2012CN102593855A Method for stabilizing fluctuation of output power of renewable energy power supply in power system
07/18/2012CN102593854A Method for stabilizing wind power fluctuation under transient time constant of battery energy storage system
07/18/2012CN102593853A Energy storage system capacity configuration optimizing method capable of enhancing wind power receiving capacity
07/18/2012CN102593852A Distribution-type interconnected inverter-based three-phase negative-pressure voltage compensating method
07/18/2012CN102593851A Pulse width modulation (PMW) rectifier control method under unbalanced power grid voltage based on power instruction compensation
07/18/2012CN102593850A Power system wide-area damping on-line control method considering multi-interval communication time delay
07/18/2012CN102593849A Control device and method for controlling chaos based on reactive compensation
07/18/2012CN102593848A APF and TSF hybrid compensation device for electric rig
07/18/2012CN102593847A Single tripolar synchronous switch-based intelligent reactive power compensation device
07/18/2012CN102593846A Zero-voltage-input thyristor-controlled trigger circuit
07/18/2012CN102593845A Reactive power compensation system of alloy smelting electric furnace system
07/18/2012CN102593844A Method for controlling voltage reactive variables of high-voltage power grid transformer substation
07/18/2012CN102593843A Cloud compensation system for reactive power
07/18/2012CN102593842A Distributive flexible reactive compensation configuration method of provincial power grid
07/18/2012CN102593841A Current separation compensation-based cascaded H-bridge distribution static synchronous compensator (DSTATCOM) device and separation compensation method
07/18/2012CN102593840A Voltage-reactive power control method for regional power grid
07/18/2012CN102593839A Difference adjustment coefficient setting method of generator excitation system considering all operating manners of power grid
07/18/2012CN102593838A Intelligent distributed active filter system
07/18/2012CN102593837A Self-adaptive single-tuned filter
07/18/2012CN102593836A Active power filter based on full-bridge topology
07/18/2012CN102593835A Fundamental wave magnetic flux tuning passive filter and harmonic wave extraction device
07/18/2012CN102593834A Online risk assessment method of power distribution network and based on worst principle
07/18/2012CN102593833A Method for designing frequency controller of independent micro-grid
07/18/2012CN102593832A Three-wire DC microgrid system suitable for modern buildings and control method thereof.
07/18/2012CN102593831A Implementation method for on-line detection system of subsynchronous oscillation events of electric power system
07/18/2012CN102593830A Parallel identification method for model parameters of electric power system
07/18/2012CN102593829A Method and device for determining transmission section in consideration of key branch circuit
07/18/2012CN102593828A Reliability assessment method for electric distribution network with WTG (wind turbine generator)
07/18/2012CN102593827A Dynamic capacity increase realizing device for power line
07/18/2012CN102593826A Wiring structure of high voltage distribution network
07/18/2012CN102593825A Method for acquiring power flow of annular power distribution network based on virtual constant current load
07/18/2012CN102593824A Power control system
07/18/2012CN102593823A Superposition-principle-based on-line power flow calculation method of distribution network
07/18/2012CN102593822A Frequency converter dynamic voltage compensation device with low voltage ride through capability
07/18/2012CN102593821A Method and system for analyzing user load by using time information
07/18/2012CN102593820A Continuation power flow algorithm considering field current constraint and armature current constraint of power generator
07/18/2012CN102593819A DC micro power grid system
07/18/2012CN102593806A Dynamic regulator
07/18/2012CN102593777A Design method of direct-current ice melting device with special converter transformer
07/18/2012CN102592810A AC (alternating current) phase-changing transformer and power transmission method thereof
07/18/2012CN102592785A Cooling device for high voltage parallel compensation reactor windings
07/18/2012CN102591278A Microgrid control system having power generation and load forecast functions and microgrid control method
07/18/2012CN102587992A Method and device for controlling output power of screw expansion power machine
07/18/2012CN102005998B Low-voltage ride through circuit of double-feed type wind power generator
07/18/2012CN101917130B Quick energy response method for grid-side converter in DFIG (Doubly-Fed Induction Generator) low-voltage ride-through (LVRT) process
07/18/2012CN101867187B Special converter for three-phase three-wire active power filter
07/18/2012CN101860039B Active neutral point clamped multi-level four-quadrant elevator driving system and control method
07/18/2012CN101826725B Method for calculating power loop-closing path based on shortest path
07/18/2012CN101795003B Solid combination switch device
07/18/2012CN101795002B Electrical structure of solid combination switch
07/18/2012CN101789601B Real time digital system (RTDS) phase-locking synchronous element
07/18/2012CN101764411B Reactive power compensation optimizing configuration calculator for transformer substation and optimizing configuration method thereof
07/18/2012CN101651355B Uninterrupted power source
07/18/2012CN101630860B Power-integration power-supply system and method for discharging storage batteries
07/18/2012CN101630839B Transient state and medium and long-term voltage stability distinguishing method based on power current reversal
07/18/2012CN101567563B Method and system for controlling dispersion type power pack
07/18/2012CN101527454B Method for automatically generating annual running mode report of power grid
07/18/2012CN101404413B Idle work optimization method suitable for on-line application
07/18/2012CN101385213B Establishing switchyard zones of a high or medium voltage switchyard
07/18/2012CN101237149B Method and apparatus for improving AC transmission system using DC transmission system
07/18/2012CA2764715A1 Methods and systems for providing an appliance hybrid mode
07/17/2012US8223511 Common mode voltage reduction apparatus and method for current source converter based drive
07/17/2012US8222990 Hybrid access control system and method for controlling the same
07/17/2012US8222768 Methods and apparatus for powering electric devices coupled to a patient to reduce transients in patient monitoring devices
07/17/2012US8222765 Photovoltaic power plant output
07/14/2012CA2727972A1 Passive harmonic filter for power distribution systems
07/13/2012DE202012002589U1 System zur autonomen Energieversorgung mit erneuerbarer Energie System for autonomous energy supply with renewable energy
07/12/2012WO2012093942A1 Energy conversion system
07/12/2012WO2012093584A1 Solar generator system
07/12/2012WO2012093324A1 Electrical energy distribution apparatus.
07/12/2012WO2012092793A1 Cellular power supply network, intelligent gateway thereof and power supply control method
07/12/2012WO2012067368A3 Method and device for multifunctional power conversion employing a charging device and having reactive power control
07/12/2012WO2011126622A3 Thyristor gate pulses in static var compensator
07/12/2012WO2011066081A9 Power conversion systems
07/12/2012US20120175955 Smart microgrid reconfigurable ac interface
07/12/2012US20120175954 Power dispatch system for electrolytic production of hydrogen from wind power
07/12/2012US20120175952 Power dispatch system for electrolytic production of hydrogen from wind power
07/12/2012US20120175949 System to store and to transmit electrical power
07/12/2012DE202012004572U1 Wandler zur separaten Stromversorgung in einem Hausstromnetz Converter for separate power supply in a household power supply
07/11/2012EP2475071A1 Electric power distribution system
07/11/2012EP2475068A1 Device for monitoring source of electric power supplied to storage battery in power supply system
07/11/2012EP2475061A1 Controller arrangement of an electrical power transfer system of a wind turbine
07/11/2012EP2475060A1 Energy storage system
07/11/2012EP2475059A1 Load balancing for distribution power supply system
07/11/2012EP2474814A1 Methods and apparatus for controlling loads coupled to an electrical grid
07/11/2012EP2474078A2 Flywheel-based energy storage on a heave-compensating drawworks
07/11/2012EP2219277B1 AC-connection of an off-shore wind-park to an on-shore electricity grid
07/11/2012EP1994452B1 System and methods for a self-healing grid using demand side management techniques and energy storage
07/11/2012EP1547221B1 An installation for transmission of electric power
07/11/2012DE202012102171U1 Photovoltaikanlage Photovoltaic system
07/11/2012CN202334401U Electricity saver for motor of pumping well
07/11/2012CN202334379U Intelligent photovoltaic system
07/11/2012CN202334377U Solar power station
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