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)
07/2010
07/07/2010CN101771274A Method and system for improving operating efficiency of thermal generator set
07/07/2010CN101770445A Multiple linear regression calculating method of reactive compensation capacity of substation
07/07/2010CN101364735B Experiment method for speed adjusting system load frequency adjustment test of gas turbine electricity generating set
07/06/2010US7751166 Advanced feeder architecture with automated power restoration
07/06/2010US7750606 Method of charging and discharging of supercapacitors without the use of converters or chargers
07/06/2010US7750505 Power supply system and vehicle
07/06/2010US7750501 System and method of over voltage control for a power system
07/06/2010US7750499 Device for limiting current of electric appliance
07/01/2010WO2010074397A2 Apparatus and method for controlling output voltage interconnected with utility networks
07/01/2010WO2010073394A1 Wind-driven electricity generation system of type having storage battery, and device for controlling charge and discharge of storage battery
07/01/2010WO2010072112A1 Wind generating set, wind generating system and operating control method thereof
07/01/2010WO2010052258A4 Adaptive power supply
07/01/2010WO2010049231A3 Device for feeding a consumer network with the electric power of a supply network
07/01/2010US20100164430 Intelligent Adaptive Energy Management System and Method for Using
07/01/2010US20100164291 System, socket and plug apparatus for DC power distribution and usage
07/01/2010US20100164285 Power Supply Circuit and Power Supply System
07/01/2010US20100164284 Wireless-Controlled Power-Saving Apparatus
07/01/2010US20100164281 Active output compensation circuit
07/01/2010DE102007044166B4 Anordnung zur Messung von Stromertrags- und/oder Verbrauchsgrößen in einem Niederspannungsnetz nebst zugehörigem Verfahren Arrangement for measuring Stromertrags- and / or consumption variables in a low-voltage network together with associated methods
07/01/2010CA2748352A1 Wind-driven electricity generation system of type having storage battery and device for controlling charge and discharge of storage battery
06/2010
06/30/2010EP2202866A1 Photovoltaic module assembly
06/30/2010EP2202863A1 Multilevel convertor as reactive power compensator with active power balancing
06/30/2010EP2202862A1 Method and electricity generation system for stabilising an electricity distribution network
06/30/2010EP2201673A1 Power system having dual synchronization
06/30/2010EP2201390A2 Method and apparatus for monitoring power transmission
06/30/2010CN201518421U Microgrid solar photovoltaic power supply device
06/30/2010CN201518420U Wind and light grid-connected system at isolation belt of highway
06/30/2010CN201518419U High-voltage, medium-voltage and low-voltage comprehensive compensation control system for arc furnace
06/30/2010CN201518418U On-line distributed voltage reactive control system
06/30/2010CN201518417U Combined low-voltage power capacitor
06/30/2010CN201518416U Electric power active filter with optimized heat radiation structure
06/30/2010CN201518049U Distribution transformer monitoring metering terminal
06/30/2010CN101765959A Alternative-source energy management
06/30/2010CN101765955A Common mode filter system and method for a solar power inverter
06/30/2010CN101764415A Synchronously-closed multi-CPU coprocessing method
06/30/2010CN101764414A Photovoltaic electric station grid connection capacity optimization and control method based on four-element constraint method
06/30/2010CN101764413A System simulation method for connecting large-scale wind power into power grid in centralization way
06/30/2010CN101764412A Low-pressure grid-connection control device for solar photovoltaic generating system
06/30/2010CN101764411A Reactive power compensation optimizing configuration calculator for transformer substation and optimizing configuration method thereof
06/30/2010CN101764410A Trigger circuit of water-cooling light-control thyristor of 66 kV
06/30/2010CN101764409A Testing device for voltage and reactive power comprehensive control system
06/30/2010CN101764408A Intelligent energy-saving device
06/30/2010CN101764407A Planning method of distribution network based on fuzzy expected value model
06/30/2010CN101764406A Maintenance scheduling safety evaluation method based on power generation loss and load supply adequacy
06/30/2010CN101764405A Multicycle and multidimensional integrated maintenance scheduling optimization and safety analysis method
06/30/2010CN101764404A Method for judging coordination running state between provincial and local regions in coordination voltage control between provincial and local regions
06/30/2010CN101763489A Simulation method of phase of wind power generation power network
06/30/2010CN101762758A System for monitoring and orientating electric power quality pollution source in electric network
06/30/2010CN101340096B Electric reactive compensating controller
06/29/2010US7747356 Integrated protection, monitoring, and control system
06/29/2010US7745956 Grid interconnection device, grid interconnection system and transfer trip system
06/29/2010US7745954 Power sampling systems and methods
06/24/2010WO2010071457A1 Islanding detection system
06/24/2010WO2010069371A1 A method of upgrading a plant for transmitting electric power and such a plant
06/24/2010WO2010069316A1 Power saving system and method
06/24/2010WO2010032954A3 Generator control system using peak voltage
06/24/2010US20100156908 Information processing apparatus and power saving effect display method
06/24/2010US20100156194 Device for filtering harmonics
06/24/2010US20100156191 Generator set control system
06/24/2010US20100156189 Collection of electric power from renewable energy sources via high voltage, direct current systems with conversion and supply to an alternating current transmission network
06/24/2010US20100156188 Solar Photovoltaic Power Collection via High Voltage, Direct Current Systems with Conversion and Supply to an Alternating Current Transmission Network
06/24/2010US20100156186 Photovoltaic and fuel cell hybrid generation system using dual converters and single inverter and method of controlling the same
06/24/2010US20100156185 Photovoltaic and fuel cell hybrid generation system using single converter and single inverter, and method of controlling the same
06/24/2010DE102009011084A1 Stationäre Energiegewinnungsanlage mit einer Einrichtung zur Dämpfung mechanischer Schwingungen Stationary energy recovery plant with a device for damping of mechanical vibrations
06/24/2010DE102008064329A1 Control line and electroencephalogram-compensation line providing arrangement for ensuring safety of electrical energy connecting system, has electrical steam and/or hot water generator connected with electrical energy system
06/24/2010CA2689029A1 Device for filtering harmonics
06/23/2010EP2200144A1 Arrangement to stabilise an electric power grid
06/23/2010EP2200143A2 Method for operating electric and/or electromechanic systems
06/23/2010EP2200142A1 Method and arrangement for limiting electric power required by electric loads
06/23/2010EP2198505A1 Methods for minimizing double-frequency ripple power in single-phase power conditioners
06/23/2010EP2198497A2 Wind turbines having control for network faults and operating method therefor
06/23/2010EP2198496A2 Virtual branch load management
06/23/2010EP1555746B1 System interconnection inverter device
06/23/2010CN201515345U Automatic control system of hydroelectric low-pressure machine set
06/23/2010CN201515334U Solar photovoltaic generating system for power supply transformer substation
06/23/2010CN201515330U Grid-connected power supply unit of viaduct type solar power station built above coastal beach
06/23/2010CN201515322U Solar energy generating utilization device
06/23/2010CN201515237U Low-cost single phase high-frequency energy feedback device
06/23/2010CN201515236U Novel energy feedback device capable of being connected with frequency converters
06/23/2010CN201515235U Novel energy feedback device adopting high-frequency switch mode
06/23/2010CN201515234U Mechanical energy-storing power generator
06/23/2010CN201515233U Three-load switching device
06/23/2010CN201515232U Large-capacity motor reactive power compensation stepping automatic cut-in device
06/23/2010CN201515231U High-voltage power capacitor fixing support
06/23/2010CN201515230U Series capacitor compensator
06/23/2010CN201515229U Special contactor for switching capacitors
06/23/2010CN201515228U Low-voltage reactive-compensation intelligent capacitor
06/23/2010CN201515227U Capacitance compensation energy-saving device of electric motor
06/23/2010CN201515226U Device for increasing network voltage at tail end of long power supply arm for heavy haul railway
06/23/2010CN201515183U Intelligent integrated distribution box with leakage protection remote monitoring function
06/23/2010CN201513299U Wind power generating set of non-mechanical speed-increasing gearbox
06/23/2010CN201513295U Direct-drive wind generator set
06/23/2010CN101753612A System and method for remotely monitoring power grid by utilizing reactive power compensation device
06/23/2010CN101753086A Fault traversing performance analog system of double-fed wind driven generator
06/23/2010CN101752893A Cable voltage drop compensation for battery chargers
06/23/2010CN101752878A Digit type fast and accurate self-synchronous parallel operation control method of electric generator
06/23/2010CN101752877A Photovoltaic synchronization inverter with photovoltaic array IV test function and test method
06/23/2010CN101752876A Arrangement to stabilise an electric power grid
06/23/2010CN101752875A Interconnecting meter
06/23/2010CN101752874A Movable electricity transmission method based on turn-off device
1 ... 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 ... 387