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)
06/2012
06/21/2012DE102010061278A1 Method for monitoring power plant e.g. photovoltaic power plant, involves recognizing defect in power plant based on deviation of prognosticated power value of power plant with standard power value
06/21/2012DE102010056456A1 Windpark und Verfahren zum Betreiben eines Windparks Wind park and method for operating a wind farm
06/21/2012CA2821020A1 Intelligent power control unit for low voltage ride through and its application
06/21/2012CA2818939A1 Methods, systems, and software for controlling a power converter during low (zero)-voltage ride-through conditions
06/20/2012EP2466715A2 UPS circuit unit and method for continuous power supply for consumers of a power generation assembly
06/20/2012EP2466714A2 System and Method for Managing Cold Load Pickup Using Demand Response
06/20/2012EP2466713A2 Method and apparatus for control of fault-induced delayed voltage recovery (FIDVR) with photovoltaic and other inverter-based devices
06/20/2012EP2466407A1 Monitoring inverters in a photovoltaic system
06/20/2012EP2465181A2 Method and system for distributed power management
06/20/2012EP2465178A2 System and method for associating a load demand with a variable power generation
06/20/2012EP2465177A2 Controlling charging stations
06/20/2012EP2465176A2 Charging station for electric vehicles having network stabilization
06/20/2012EP1866717B1 Method and device for intentionally isolating distributed power generation sources
06/20/2012CN202282753U 一种电机节电控制器 A motor saving controller
06/20/2012CN202282713U Direct grid connection variable speed constant frequency power generator
06/20/2012CN202282618U 蓄电池活化放电的电能回收装置 Battery discharge activation energy recovery
06/20/2012CN202282617U Large-capacity real-time reactive compensation detection device based on high-voltage SVG (scalable vector graphics)
06/20/2012CN202282616U Control circuit for static var generator (SVG)
06/20/2012CN202282615U Integrated intensive type SVG (static var generator) cabinet based on multi-unit integrated drawer type power module
06/20/2012CN202282614U Device for eliminating voltage fluctuation and flicker of power grid based on fully controlled current transformer
06/20/2012CN202282613U Dynamic power flow control apparatus for controllable transformer based on multi-frequency multiplication modulation
06/20/2012CN202282595U High-voltage direct-current ice melting device with a source filter function
06/20/2012CN202280564U Semi-submerged-type power generator set floating on water level of river flow
06/20/2012CN102511117A Charge/discharge control device and power generating system
06/20/2012CN102510231A Diode clamp type five-level photovoltaic inverter and power supply system using the same
06/20/2012CN102510229A Modularized power supply with electric energy quality level-to-level management function
06/20/2012CN102510171A Direct drive type induction wind power generation system
06/20/2012CN102510120A Micro-grid inverter voltage and current double-ring hanging control method based on virtual impedance
06/20/2012CN102510108A Method for calculating maximum wind power installed capacity of district power network
06/20/2012CN102510107A Method for acquiring driving components of branch transmission power in power network
06/20/2012CN102510106A Combined heat and power dispatching system comprising steam-extracting steam-condensing type cogeneration unit and dispatching method thereof
06/20/2012CN102510105A Water source heat pump and pure condensing steam thermal power combined dispatching system and method
06/20/2012CN102510104A Combined cold and power dispatching system comprising steam-extracting steam-condensing type cogeneration unit and dispatching method thereof
06/20/2012CN102510103A Back-pressure type cogeneration and pure condensing steam thermal power combined dispatching system and dispatching method thereof
06/20/2012CN102510102A Combined cold and power dispatching system comprising gas combined cycle unit and dispatching method thereof
06/20/2012CN102510101A Combined heat and power dispatching system comprising back-pressure type cogeneration unit and dispatching method thereof
06/20/2012CN102510100A Heat and electricity joint scheduling system with water source heat pump and pure condensed steam thermal power unit and scheduling method thereof
06/20/2012CN102510099A Heat and electricity joint scheduling system with gas combined cycle unit and scheduling method thereof
06/20/2012CN102510098A Extraction condensing cogeneration and straight condensing thermal power combined dispatching system and method
06/20/2012CN102510097A Back pressure type cogeneration and straight condensing thermal power combined dispatching system and method
06/20/2012CN102510096A Cold and electricity joint scheduling system with backpressure type cogeneration unit and scheduling method thereof
06/20/2012CN102510095A Combined cycle and straight condensing thermal power combined dispatching system and method
06/20/2012CN102510094A Combined cycle and pure condensed steam thermal power scheduling system and method
06/20/2012CN102510093A Wind power field active power control method based on power forecasting information
06/20/2012CN102510092A Distributed real-time control unit of wind power converter
06/20/2012CN102510091A Coordinate control method suitable for real time scheduling and AGC (Automatic Gain Control) after large scale photovoltaic grid connection
06/20/2012CN102510090A External fault judging method for micro-grid power system
06/20/2012CN102510089A Wind and solar micro power grid system
06/20/2012CN102510088A Automatic direct current inverter tracking grid connection device
06/20/2012CN102510087A Micro-grid experimental system based on hybrid simulation platform
06/20/2012CN102510086A Multi-quadrant photovoltaic energy storage and inversion integrated device
06/20/2012CN102510085A MPPT-based Boost voltage booster circuit adopting double closed-loop control
06/20/2012CN102510084A Three-level photovoltaic grid-connected inversion technology
06/20/2012CN102510083A Integration protection method capable of reducing wind power field low-voltage crossing capacity requirement
06/20/2012CN102510082A Power-grid-friendly-type wind power generating set and control method thereof
06/20/2012CN102510081A Zero-cross control circuit, method and system of photovoltaic network disconnection relay
06/20/2012CN102510080A Method for scheduling energy storage system in micro-grid
06/20/2012CN102510079A Water source heat pump cooling and power combined dispatching system using solar power generation, and dispatching method thereof
06/20/2012CN102510078A Combined heat and power scheduling system and scheduling method for extraction and condensing unit
06/20/2012CN102510077A Cold and electricity scheduling system and method of extraction-condensing turbine unit
06/20/2012CN102510076A Heat and power dispatching system and dispatching method of back-pressure type combined heat and power generation unit
06/20/2012CN102510075A Thermoelectricity dispatching system and method of water source heat pump
06/20/2012CN102510074A Cooling and power dispatching system and dispatching method of back-pressure type combined heat and power generation unit
06/20/2012CN102510073A Data exchanging system of large power consumption interaction system/ distribution automation master station system
06/20/2012CN102510072A Power grid system transient destabilization differentiation method
06/20/2012CN102510071A Power grid system emergency control method and device
06/20/2012CN102510070A Method for realizing automatic voltage closed-loop control of power plant by taking powder factor as control target
06/20/2012CN102510069A Energy saving type control method of composite switch and energy saving type composite switch
06/20/2012CN102510068A Distributed power quality conditioner and method for controlling same
06/20/2012CN102510067A Method for preventing thyristors from being locked during quick and repeated zero cross switching of three-phase thyristor switched capacitor (TSC)
06/20/2012CN102510066A Integrated intensive static var compensation (SVG) cabinet based on multi-unit integrated drawer type power module
06/20/2012CN102510065A Cold and electricity joint scheduling system comprising water source heat pump and scheduling method thereof
06/20/2012CN102510064A Improved droop control method in micro electric network detached island operation control system
06/20/2012CN102510063A Grading frequency regulation control method of interconnected power grid
06/20/2012CN102510062A Improved space vector single period control method and device for active power filter
06/20/2012CN102510061A Parallel harmonic wave protection device
06/20/2012CN102510060A Computing method of frequency characteristic coefficient of electric system
06/20/2012CN102510059A Super short-term wind power forecasting method based on back propagation (BP) neural network
06/20/2012CN102510058A Intelligent power network controller and working method thereof
06/20/2012CN102506519A Heat and power cogenerator unit and wind power generator unit combined heat supply system and scheduling method thereof
06/20/2012CN102506477A Heat and power cogeneration unit and wind power generation combined refrigeration system and scheduling method thereof
06/20/2012CN102506476A Water source heat pump and wind power generation combined refrigeration system and scheduling method thereof
06/20/2012CN102506452A Backpressure heat and power cogenerator and wind power generator output heat supply scheduling system and method
06/20/2012CN102506451A Heat and power cogeneration system comprising wind power and fuel gas combined-cycle unit and heat and power cogeneration method
06/20/2012CN101847871B Load flow calculation solvability judging method of node type extension
06/20/2012CN101826804B Control method of parallel-type permanent magnet direct-drive wind power converter in wind driven generation system
06/20/2012CN101777769B Multi-agent optimized coordination control method of electric network
06/20/2012CN101777765B On-line load simulation method of power system
06/20/2012CN101764404B Method for judging coordination running state between provincial and local regions in coordination voltage control between provincial and local regions
06/20/2012CN101636898B Control device for rectifier stations in a high-voltage DC transmission system
06/20/2012CN101291068B Driving system for wind power generation of parallel net type with generated power totally monitored
06/20/2012CN101026301B Method and apparatus for injection current
06/19/2012US8204990 Power cycler with internet connectivity monitor
06/19/2012US8204632 Emergency frequency load shedding scheme
06/19/2012US8203856 Method and arrangement to reverse the power flow of a direct current power transmission system
06/19/2012US8203234 Power safety system
06/19/2012US8203233 PWM control apparatus and method for PWM control
06/19/2012CA2446876C Protection of an electric power transmission network
06/14/2012WO2012078433A2 Computing architecture for autonomous microgrids
06/14/2012WO2012077924A2 Method for controlling load
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