Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663)
12/2012
12/12/2012CN102820674A Method for coordinating contribution of generating set and energy-storage system, device and generating system
12/12/2012CN102820673A Multiterminal flexible direct current power transmission system included power grid operation control system and method
12/12/2012CN102820672A Flexible direct current transmission system for connecting alternating current networks with different voltage classes
12/12/2012CN102820671A Method for calculating sub-module quantity in bridge arm of modular multi-level current converter
12/12/2012CN102820670A Voltage class selecting method for flexible direct current power transmission project
12/12/2012CN102820669A Dynamic storage energy-saving control cabinet and working method thereof
12/12/2012CN102820668A Method and device for controlling force contribution of energy-storage system, and power generation system
12/12/2012CN102820667A Balance control method of three-phase SCR (semiconductor control rectifier) power regulator
12/12/2012CN102820666A Three-phase power electronic transformer capable of balancing asymmetric load
12/12/2012CN102820665A Method for rapidly identifying sub-synchronous oscillation in wind power integrated system
12/12/2012CN102820664A Integrated power supply circuit with reactive compensation characteristics
12/12/2012CN102820663A Dynamic reactive power compensation and harmonic treatment complete equipment
12/12/2012CN102820662A Distributed power source contained power system multi-target reactive-power optimization method
12/12/2012CN102820661A Overall voltage quality coordinated control method for distribution network being oriented to multi-level objects
12/12/2012CN102820660A Static var compensation system applicable to compensation of photovoltaic power station
12/12/2012CN102820659A Harmonic and reactive detection-free static synchronous compensation power distribution control method
12/12/2012CN102820658A Device for digital power factor correction
12/12/2012CN102820657A Automatic voltage control system for adaptive adjustment coefficient algorithm
12/12/2012CN102820656A Method for jointly scheduling power generation load by using wind power generation unit and thermal power generation unit
12/12/2012CN102820655A Control method of voltage support and fault current limit compatible power electronic system
12/12/2012CN102820654A Cooperative control method of power electronic system
12/12/2012CN102820653A Fuzzy-neural network double closed-loop control method of electric energy quality comprehensive controller
12/12/2012CN102820652A LC coupling disc type coil filter and design method thereof
12/12/2012CN102820651A Intelligent motor electricity saver
12/12/2012CN102820650A Method for designing electric power system load frequency controller on basis of disturbance estimation
12/12/2012CN102820649A Method for building real time digital system (RTDS)-energy management system (EMS) system-level closed-loop control experiment simulation platform
12/12/2012CN102820648A Method for reconstructing power distribution networks of iron and steel enterprises
12/12/2012CN102820647A System connecting apparatus
12/12/2012CN102820646A Device and method for controlling fault ride-through of power grid of flexible direct-current transmission system
12/12/2012CN102820129A Filtering type power transformer integrated system and implementation method thereof
12/12/2012CN102818484A Ground power supply distribution system for carrier rocket
12/12/2012CN102817775A Arrangement for generating control signal for controlling power output of power generation system
12/12/2012CN102156783B Comprehensive assessment method for simulation accuracy of electrical power system
12/12/2012CN102088191B Method and system for cooperatively controlling low voltage ride through of full-power fan converter
12/12/2012CN102074953B Double-purpose micro-grid system structure used for power supply and experiment
12/12/2012CN102055202B Three-phase balancing power-supply energy-saving control management system
12/12/2012CN102055198B Reactive compensation intelligent monitoring management system
12/12/2012CN102013688B Synchronous switch for controlling switching of three-phase power capacitor
12/12/2012CN101976834B Sparse matrix method-based network topology analysis method for power system
12/12/2012CN101917017B Single-stage boosting/reducing energy storage type photovoltaic grid-connected power generation control system
12/12/2012CN101834441B User power supply voltage and load current control device working according to electric network requirements and user need
12/12/2012CN101795006B Wireless parallel control method of 400 Hz high-power inverted power supply and control system thereof
12/12/2012CN101785174B Inverter unit without transformer for thin-film solar panels
12/12/2012CN101713376B Controller and control method for wind turbine generator set
12/12/2012CN101689760B Inverter for feeding electrical energy into a power supply system
12/12/2012CN101615789B Method for estimating tracking state of wide area measurement system
12/11/2012US8332076 Wind farm with plural wind turbines, and method for regulating the energy feed from a wind farm
12/11/2012US8330415 Charge/discharge control apparatus
12/11/2012US8330398 Method and system to start multiple AC motors supplied by a power converter via a common AC bus
12/11/2012US8330297 UPS system
12/11/2012US8330296 Hybrid renewable energy turbine using wind and solar power
12/11/2012US8330293 Power factor correction system
12/06/2012WO2012166984A1 Apparatus for powering an accessory device in a refrigerated container
12/06/2012WO2012166788A2 Photovoltaic voltage regulation
12/06/2012WO2012166330A1 Green energy database including verifiable information for implementing a national level green energy policy
12/06/2012WO2012166242A1 Method for using power lines for wireless communication
12/06/2012WO2012166038A1 Arrangements for network protection
12/06/2012WO2012165986A2 "energy management equipment"
12/06/2012WO2012165365A1 Power supply system
12/06/2012WO2012165300A1 Battery system
12/06/2012WO2012165154A1 Power supply system
12/06/2012WO2012165153A1 Power supply system
12/06/2012WO2012165079A1 Power supply apparatus and power supply control method
12/06/2012WO2012164374A2 Modular electrical energy production device
12/06/2012WO2012163979A2 Assessment of power systems
12/06/2012WO2012163841A1 A voltage source converter for a hvdc transmission system
12/06/2012WO2012163398A1 System for distributing electric power to an electrical grid
12/06/2012WO2012163355A1 System and method for generating an inertial response to a change in the voltage of an electricial grid
12/06/2012WO2012163313A1 Apparatus for supplying electrical energy to electrical loads
12/06/2012WO2012163187A1 Method and device for extracting skeleton topology structure for electric power grid
12/06/2012WO2011134057A8 Power converter for a power generator
12/06/2012US20120306471 Method and apparatus for performing on-load mechanical switching operations
12/06/2012US20120306277 Wind turbine controller applying differential pole control algorithm
12/06/2012US20120306275 System and Method for Charging and Discharging a Li-ION Battery
12/06/2012US20120306204 Method and control arrangement for controlling a reactive power source
12/06/2012DE102011103600A1 Method for controlling e.g. industrial plant for optimum utilization of power supply, involves determining start time such that energy required for process or large possible energy required for process is produced by solar power plant
12/06/2012DE102011076877A1 Adaptiver Netzfilter Adaptive mesh filter
12/06/2012DE102011076787A1 Energieversorgung Energy supply
12/05/2012EP2530804A1 Improved ground fault handling in power distribution systems with mixed underground and aerial power lines
12/05/2012EP2530803A1 Substation automatic control system
12/05/2012EP2530802A2 Power control device, power management device and power management system
12/05/2012EP2530800A2 Distribution protection system and method
12/05/2012EP2529478A2 Advanced topologies for offshore power systems
12/05/2012EP2529468A1 Method of efficiently managing power
12/05/2012EP2529462A2 Method for emulation of synchronous machine
12/05/2012EP2529461A1 Power management system, power management apparatus, and power management method
12/05/2012EP2529460A2 Power supply module
12/05/2012CN202586810U Novel grid-disconnected/grid-connected integrated solar energy power generation system
12/05/2012CN202586792U Photovoltaic grid-connected inverter with secure input control
12/05/2012CN202586510U Wind-power storage-battery energy storage system
12/05/2012CN202586493U Micro electrical network energy management system
12/05/2012CN202586379U Data acquisition device of wind turbine generator reactive power control system
12/05/2012CN202586378U Grid-combined power generation device
12/05/2012CN202586377U Grid-connected inverter
12/05/2012CN202586376U System for absorbing regenerative power energy by isolating transformation of direct current buses of frequency converters
12/05/2012CN202586375U Photovoltaic grid-connection system device
12/05/2012CN202586374U Converter redundancy control system
12/05/2012CN202586373U Light direct-current power transmission system for offshore grid-connected wind farm
12/05/2012CN202586372U Micro photovoltaic grid-connected inversion device
12/05/2012CN202586371U Power grid fault isolation system used for clean energy grid-connection