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)
08/2012
08/29/2012CN101154815B Dynamic economic burden distribution
08/28/2012US8254150 Inverter with commutation circuit
08/28/2012US8253277 Electronic assembly provided with a parallel circuit for connecting electrically to two battery units
08/28/2012US8253273 Power system having AC and DC power sources
08/28/2012US8253272 Fan controller with 8-bit signal encoding
08/28/2012US8253271 Home power supply system
08/28/2012CA2769387A1 Method and apparatus for testing a wind turbine installation
08/25/2012CA2769295A1 Wind turbine
08/25/2012CA2769274A1 Wind turbine
08/25/2012CA2769126A1 Capacitance placement in wind farms
08/23/2012WO2012111607A1 Analysis device of catenary-based transportation system, analysis method and program therefor
08/23/2012WO2012111416A1 Matrix converter device for wind-power electricity-generation, wind-power electricity-generation device, wind farm, and wind turbine manufacturing method
08/23/2012WO2012111377A1 Electricity use monitoring device, electricity use monitoring system
08/23/2012WO2012111373A1 Energy consumption monitoring system, method, and computer program
08/23/2012WO2012111234A1 Power supply system
08/23/2012WO2012110747A1 Photovoltaic array and method enabling a dc current and/or voltage to be generated from solar radiation for a number of electric circuits
08/23/2012WO2012110670A1 System and method for monitoring the waveform of the voltage of the electrical grid
08/23/2012WO2012110472A1 Load-balancing device on a polyphase network
08/23/2012WO2012109703A1 Common-mode filter device and system
08/23/2012WO2012079729A3 Monitoring inverters in a photovoltaic system
08/23/2012WO2012066005A3 Method for connecting a photovoltaic installation to a power supply grid
08/23/2012WO2012032487A3 Method for automatically re-phasing the current of a domestic electrical network
08/23/2012WO2012014043A3 Energy management system
08/23/2012WO2011128344A3 Method of balancing an electrical network comprising several generators, distributors and installations
08/23/2012US20120212211 Polyphase power distribution and monitoring apparatus
08/23/2012US20120212052 Electricity distribution system
08/23/2012US20120212051 Uninterruptible power supplies for use in a distributed network
08/23/2012US20120212050 Electricity supply management device
08/23/2012DE102012202465A1 Power supply system for supplying electric current to e.g. house to charge battery of hybrid car, has storage device storing surplus of electric solar when amount of electricity is larger than amount of electric current consumed by load
08/23/2012DE102012202441A1 Power supply system for controlling quantity of electricity in battery in hybrid car, has load controlling device controlling amount of electric current such that excess of current is provided back or made to flow to power supply system
08/23/2012DE102004003657B4 Stromrichterschaltungsanordnung und zugehöriges Ansteuerverfahren für Generatoren mit dynamisch veränderlicher Leistungsabgabe Converter circuit arrangement and associated method for driving generators with dynamically variable power output
08/23/2012CA2827212A1 System and method for monitoring the electric network voltage waveform
08/22/2012EP2490313A2 Energy storage system and controlling method thereof
08/22/2012EP2490312A1 Solar generation method and system
08/22/2012CN202395646U Active damping circuit of LCL grid-connected inverter system
08/22/2012CN202395486U Harmonic recycled energy-storage device
08/22/2012CN202395465U Three-level full power converter set specially for high-power wind driven generator
08/22/2012CN202395464U Device utilizing SVG technology to solve problem of unbalance of three phase voltage
08/22/2012CN202395463U Low-voltage three-phase dynamic reactive synchronous compensating device
08/22/2012CN202395462U Novel static reactive compensation device
08/22/2012CN202395461U Intelligent low-voltage shunt capacitor
08/22/2012CN202395460U Low-voltage dynamic reactive compensation device
08/22/2012CN202395459U Power distribution network dynamic reactive power compensation device
08/22/2012CN202395458U Dynamic reactive power compensation energy-saving device of pumping unit
08/22/2012CN202395457U High-voltage static var generator controlled by constant voltage and capable of realizing parallel operation
08/22/2012CN202395456U High and low voltage dynamic energy-saving compensation complete equipment of ore furnace
08/22/2012CN202395455U Small wind power generation load intelligent control system
08/22/2012CN202395454U Grid voltage sag resistance device of transducer cabinet in automobile plant
08/22/2012CN202395453U Electromagnetic electricity saving device of large-power system
08/22/2012CN202395452U Hybrid active power filter (APF)
08/22/2012CN202395451U Intelligent harmonic wave treatment system
08/22/2012CN202395450U Filtering compensation device
08/22/2012CN202395449U Active power filtering device
08/22/2012CN202395448U Comprehensive electricity quality treatment device
08/22/2012CN202395447U Master-slave active filtering system
08/22/2012CN202395446U Multi-machine fractional completely active treatment device for low voltage large current harmonics
08/22/2012CN202395445U Multi-machine full compensation and fractional compensation combination type completely active harmonic treatment device
08/22/2012CN202395444U Voltage harmonic generating device having self-compensation function
08/22/2012CN202395443U Microgrid system for laboratories
08/22/2012CN202395442U High-voltage intelligent electricity-saving control device
08/22/2012CN102648559A Power control method and device
08/22/2012CN102648479A Load scheduling optimization in distributed system
08/22/2012CN102647092A Voltage regulating device for low voltage side of alternating-current power transmission and transformation
08/22/2012CN102646996A Power control system of double-fed set wind power plant
08/22/2012CN102646995A Wind, light and superconducting magnetic energy storage hybrid power generation system based on current-source inverters
08/22/2012CN102646994A Automatic switching device for intelligent control of parallel operation of 220kV three-winding transformers
08/22/2012CN102646993A Low-voltage ride through (LVRT) system of wind generation set and method of the system
08/22/2012CN102646992A Power grid fault isolating system for clean energy grid connection
08/22/2012CN102646991A Low-voltage ride-through switch and dynamic resistor for double-fed type wind driven generator set
08/22/2012CN102646990A Net source coordination oriented large wind farm closed-loop control system
08/22/2012CN102646989A Historical-information-based switching control method for neutral current suppression device of distribution transformer
08/22/2012CN102646988A Control method of reactive compensation controller in low-voltage distribution system
08/22/2012CN102646987A Power factor regulating circuit and regulating method
08/22/2012CN102646986A Magnetically controlled reactor controller and method thereof
08/22/2012CN102646985A Compensating method and control software of electric power reactive tracking compensator
08/22/2012CN102646984A Method and system for realizing real-time automatic compensation of voltage and reactive power of substation
08/22/2012CN102646983A Long-term reactive voltage analyzing and optimizing method in power system
08/22/2012CN102646982A Low-carbon power generation dispatching method for wind farm
08/22/2012CN102646981A Power system short-circuit current attenuation practical calculation method
08/22/2012CN102646980A Novel primary frequency-modulation compensation control method of unit thermal generator set
08/22/2012CN102646968A Reactor type short-circuit fault current limiter
08/22/2012CN102646940A Double-power 10KV power distribution device
08/22/2012CN102646939A Single-power-supply 10KV power distribution device
08/22/2012CN102646181A Method and device for simulating phase of flow power generation grid
08/22/2012CN102646180A Method and device for simulating current of flow power generation grid
08/22/2012CN101980436B Grid-connected photovoltaic inverter device and control method for improving conversion efficiency thereof
08/22/2012CN101964527B Non-balanced type active filtering compensation method for voltage on power grid side
08/22/2012CN101951073B Small and medium size wind driven generator
08/22/2012CN101882792B Connection method for ultrahigh-voltage direct current transmission and ultrahigh-voltage converter stations
08/22/2012CN101867197B Light direct current supply experiment system of offshore grid-connected wind farm
08/22/2012CN101867192B Reactive compensation control simulation test system
08/22/2012CN101841167B Flyback converter leakage inductance energy absorption feedback circuit of photovoltaic grid-connected inverter
08/22/2012CN101800430B High and low pressure combined reactive compensation control system for submerged arc furnace
08/22/2012CN101728837B Energy feedback system
08/22/2012CN101499663B Parallel control method for inverter and inverter therefor
08/21/2012US8247924 Power supply and method that maintains supply voltage in communications systems during a power supply interruption
08/21/2012US8247923 Method for operating a photovoltaic system and photovoltaic system for carrying out the method
08/21/2012US8247922 Power supply device with low standby power consumption
08/21/2012DE202012102677U1 Vorrichtung zur Eigenverbrauchssteuerung bei der Energiegewinnung mittels photovoltaischer Anlagen Apparatus for control of own consumption in energy by means of photovoltaic systems
08/21/2012CA2536833C Power regulator for power inverter
1 ... 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 ... 387