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)
02/2014
02/26/2014CN103606927A Novel single-phase voltage regulating and transforming system
02/26/2014CN103606926A High-capacity unified power quality conditioner based on chain structure and control method thereof
02/26/2014CN103606925A Medium-voltage regulating transformer with reactive compensation
02/26/2014CN103606924A Dynamic voltage compensation apparatus and method
02/26/2014CN103606923A Intermediate frequency furnace harmonic wave treatment and reactive power compensation apparatus
02/26/2014CN103606922A Approximate judgment method for power angle stability of electric power system based on typical fault set
02/26/2014CN103606921A Transient voltage stabilization judgment method based on real-time generalized Thevenin equivalence
02/26/2014CN103606920A Electricity saving device for office electricity utilization
02/26/2014CN103606919A Method for designing frequency controller of electric system containing multi-load disturbance
02/26/2014CN103606918A Electric power system load monitoring and energy consumption management system and implementation method thereof
02/26/2014CN103606917A Power transmission system for improving conveying capacity of urban power grid through non-sine alternating current transmission
02/26/2014CN103606916A Method for assessing power supply capacity of transformer substation
02/26/2014CN103606915A Electric power system transient state stability judgment and critical cut-set identification method
02/26/2014CN103606914A Energy-saving system of unified power quality conditioner and controlling method thereof
02/26/2014CN103606913A Distributed hybrid power generation system power source planning method
02/26/2014CN103606057A System and method for monitoring power utilization service quality
02/26/2014CN103606014A Multi-target-based island distributed?generation optimization method
02/26/2014CN102638046B Wiring detection training system for intelligent reactive automatic capacitance compensation control devices
02/26/2014CN102593854B Method for stabilizing wind power fluctuation under transient time constant of battery energy storage system
02/26/2014CN102570493B Optimal control method for reducing parallel initial fault current angles of looped network in power system restoration
02/26/2014CN102522763B Control method for stabilizing fluctuation of wind power by energy storage system
02/26/2014CN102522742B Estimation method of external network Thevenin equivalent parameters based on single point measurement information
02/26/2014CN102510120B Micro-grid inverter voltage and current double-ring hanging control method based on virtual impedance
02/26/2014CN102496965B Island-grid-based method for power supply of diesel generator and energy storage coordination control of battery
02/26/2014CN102170129B Low-carbon dispatching method and device for electric power system based on large-scale wind power grid connection
02/26/2014CN102163852B Neutral point clamped non-isolated photovoltaic grid-connected inverter
02/26/2014CN101752864B Method and arrangement for limiting electric power required by electric loads
02/26/2014CN101728828B Optimized system voltage control method through coordinated control of reactive power source
02/25/2014US8660807 Method of substation-control center two-level distributed nonlinear state estimation for power system
02/25/2014US8659316 Power control circuit, semiconductor device including the same
02/25/2014US8659183 Variable initialization time in the charging of energy reserves in an irrigation control system
02/25/2014CA2649838C Electrical power distribution control systems and processes
02/20/2014WO2014027951A1 Control system for overspeed reduction in water power plants
02/20/2014WO2014027527A1 Power supply system and method for controlling power supply system
02/20/2014WO2014027462A1 Energy management device, and energy-management-device control method
02/20/2014WO2014027198A1 Monitoring power consumption and/or energy usage
02/20/2014WO2014000906A3 Avoidance of an overload for transmission links within a power supply system
02/20/2014WO2013192432A4 Method and apparatus for actively managing electric power over an electric power grid
02/20/2014WO2013189967A3 Network diagram creation and management
02/20/2014WO2013134197A3 Method and apparatus providing point of interconnection control for power plants
02/20/2014WO2013130558A3 Method and apparatus for storing power from irregular and poorly controlled power sources
02/20/2014US20140052306 Power connection control system and method
02/20/2014US20140049115 Method for Distributed Power Harvesting Using DC Power Sources
02/20/2014US20140049109 Method and apparatus for delivering power using external data
02/20/2014US20140049108 Power system with combination of active current sharing and droop current sharing and power system assembly using the same
02/20/2014US20140049106 Power device
02/20/2014DE102012214463A1 Device for distributing energy of power generation unit between two supply points of power networks, has control unit to operate inverters such that specific amounts of power generated on DC side are fed to supply points over inverters
02/19/2014EP2698920A1 Phase-locked loop
02/19/2014EP2698908A2 AC-DC power supply device and switching mode power supply device
02/19/2014EP2698897A1 Power storage device and method for operating power storage device
02/19/2014EP2698896A2 Energy storage device, power management device, mobile terminal and method for operating the same
02/19/2014EP2698895A2 Static security constrained automatic voltage control method
02/19/2014EP2698894A2 Alternative Power Converter System
02/19/2014EP2698893A1 System side control device and method
02/19/2014EP2697889A2 Power distribution system and method for operation thereof
02/19/2014EP2697883A1 Load adjustment sharing system and method
02/19/2014EP2697878A1 Method and protective device for recognising a symmetrical short-circuit in a multi-phase electrical power supply network
02/19/2014CN203445667U Electric vehicle intelligent integrated charger applicable to micro grid
02/19/2014CN203445627U Wind power generator set high and low voltage ride through device and system thereof
02/19/2014CN203445626U Solar power generation device
02/19/2014CN203445625U Power grid impact load electric boiler peak-adjusting machine group
02/19/2014CN203445624U Reactive power compensation system for low-voltage network
02/19/2014CN203445623U Intelligent reactive power three-stage mixed compensation compensator
02/19/2014CN203445622U Static voltage adjusting reactive compensation device
02/19/2014CN203445621U Reactive compensation control electrical cabinet
02/19/2014CN203445620U High-voltage reactive compensation wave-filtering device
02/19/2014CN203445619U Multi-main-transformer flow control type magnetron reactor controller
02/19/2014CN203445618U Integrated high-voltage large-capacity power capacitor
02/19/2014CN203445617U Unified power flow controller capable of short-circuit current limiting
02/19/2014CN203445616U Controller integrating dynamic voltage stabilization and reactive power compensation
02/19/2014CN203445615U Harmonic wave absorbing device
02/19/2014CN203445614U Power efficiency gain power-saving device
02/19/2014CN203445613U Fully integrated energy system
02/19/2014CN103597696A Inverter with monitoring of the moisture state and method for operating an inverter
02/19/2014CN103597695A Mains-coupled inverter, inverter arrangement and method for operating an inverter arrangement
02/19/2014CN103597694A Operation control device for photovoltaic power generation system
02/19/2014CN103597693A Methods for de-energizing a chain-link converter, controller, computer programs and computer program products
02/19/2014CN103597692A A compensating system for medium or high voltage applications
02/19/2014CN103597691A Setting method, device authentication method, device authentication system, and controller
02/19/2014CN103597690A Optimized load management
02/19/2014CN103597689A Optimized load management
02/19/2014CN103595280A Deadbeat control method of solar power generating system inverter under condition of voltage unbalance
02/19/2014CN103595279A Photovoltaic inverter fixed-frequency-type model prediction control method in power grid asymmetric fault
02/19/2014CN103595278A Power balance resonance control method for solar power generation system grid-side converter
02/19/2014CN103595140A Power generation, power distribution and intelligent optimization system and method based on cloud technology
02/19/2014CN103595138A Smart micro-grid system
02/19/2014CN103595135A Intelligent reactive power optimization and coordinated control system of middle-and-low-voltage regional power grid
02/19/2014CN103595127A Intelligent control method and intelligent control system for offshore petroleum platform power grid
02/19/2014CN103595126A Photovoltaic sniffer
02/19/2014CN103595121A Comprehensive energy utilization method combining data center with distributed energy
02/19/2014CN103595077A Control method for converting split operation state into independent operation state in double-transformer system
02/19/2014CN103595076A Method for active power distribution for improving fatigue evenness of wind generating sets
02/19/2014CN103595075A Novel grid-connection control system for small gas generator set
02/19/2014CN103595074A System for integrated operation of intelligent grid-off-and-in inverter
02/19/2014CN103595073A Wind turbine generator and method for allowing same to overcome electricity grid fluctuation influences
02/19/2014CN103595072A Method of micro-grid for seamless switching from off-grid state to grid-connection state
02/19/2014CN103595071A Energy system of micro-grid
02/19/2014CN103595070A Energy storage system aggregation control method for stabilizing fluctuation of main output power of various wind power stations
02/19/2014CN103595069A Method for carrying out model prediction control on grid-side converter of photovoltaic power generation system under unbalanced voltage
02/19/2014CN103595068A Control method for stabilizing wind and light output power fluctuation through hybrid energy storage system
1 ... 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 ... 387