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
08/09/2012WO2012103904A2 Method and device for determining the load flow in a power supply network
08/09/2012WO2012047888A3 Dynamic thermostatic control of small-scale electrical loads for matching variations in electric utility supply
08/09/2012WO2011151599A3 Matrix connection device for photovoltaic panels and/or wind turbines.
08/09/2012WO2011018542A3 Method for controlling an energy conversion system
08/09/2012US20120200346 Through-Hole-Vias In Multi-Layer Printed Circuit Boards
08/09/2012US20120200166 Power Or Voltage Oscillation Damping In A Power Transmission System
08/09/2012US20120200156 System for generating electrical power for a port
08/09/2012US20120200155 Electric power distribution methods and apparatus
08/09/2012DE102011010791A1 Grid-connected system for local production of renewable electric energy, has power management unit having local energy storage connected to local load and external power supply system
08/09/2012CA2826431A1 System and method for estimating and providing dispatchable operating reserve energy capacity through use of active load management
08/09/2012CA2825803A1 Smart node
08/09/2012CA2825537A1 On - load tap changer control method for a power excitation chain, related unit and power excitation chain comprising such unit
08/08/2012EP2485375A1 Power distribution system
08/08/2012EP2485361A1 Electric power management system
08/08/2012EP2485360A1 Electric power management system
08/08/2012EP2485359A1 Grid-connected power supply system
08/08/2012EP2485358A1 System and method for mitigating an electric unbalance of a three-phase current at a Point of Common Coupling between a wind farm and a power grid
08/08/2012EP2485357A1 Dynamic voltage restoration system and method
08/08/2012EP2485356A1 Energy storage and power management system
08/08/2012EP2485189A1 Energy management system and power feed control device
08/08/2012EP2484182A1 Energy storage based countermeasure for a delayed voltage recovery
08/08/2012EP2483986A1 Phase angle drift detection method for loss of mains /grid protection
08/08/2012EP2483985A2 System to store and to transmit electrical power
08/08/2012EP2340595B1 Apparatus and method for reactive power compensation of a test transformer
08/08/2012EP1665494B8 Method for operating or controlling a wind turbine and method for providing primary control power by means of wind turbines
08/08/2012DE202012006589U1 Steuereinheit zum Betrieb von Eigenerzeugungsanlagen an lokalen Stromnetzen mit Durchschaltung auf das Stromnetz im Netzbetrieb Control unit for operation of power generation facilities of local power networks with switching through the power grid in network operation
08/08/2012CN202374195U Photovoltaic off-connected grid and energy storage mixing power supply system
08/08/2012CN202374022U Charge and discharge control system
08/08/2012CN202373984U System capable of simulating micro-power grid system and alarming for abnormal operation of micro-power grid system
08/08/2012CN202373983U Standby power grid peak shaving base station
08/08/2012CN202373982U Reactive adjusting composite device for voltage regulating type high-voltage capacitor
08/08/2012CN202373981U Double-capacitance intelligent capacitor
08/08/2012CN202373980U Thyristor switching reactive power compensation and filtration device
08/08/2012CN202373979U Intelligent reactive power compensation and power parameter display integrated control device
08/08/2012CN202373978U Secondary low-voltage dynamic energy-saving compensation integrated device of submerged arc furnace
08/08/2012CN202373977U Low-voltage ride through device
08/08/2012CN202373976U Active filtering device
08/08/2012CN202373975U Passive filter compensating device
08/08/2012CN202373974U Harmonic processing device of low-voltage power grid
08/08/2012CN202373862U Capacitor mounting plate
08/08/2012CN102630360A 配电系统 Distribution system
08/08/2012CN102629849A Device for on-line adaptation of motor for automatic operation at optimum efficiency
08/08/2012CN102629837A Method for circulating current restraining of parallel system of dual grid-connected inverters based on zero voltage vector feedforward control
08/08/2012CN102629776A Auxiliary power supply system for power converter and method
08/08/2012CN102629768A Photovoltaic grid-connected inverter current control method based on positive and negative sequence component separation
08/08/2012CN102629767A Active desynchronization of switching converters
08/08/2012CN102629766A System and method for mitigating an electric unbalance of a three-phase current at a point of common coupling
08/08/2012CN102629765A Short net side low voltage dynamic reactive power compensation system in metallurgical industry
08/08/2012CN102629764A Novel power filter
08/08/2012CN102629763A Low-voltage side filter compensation energy-saving rectification transformer
08/08/2012CN102629762A Floating frequency difference regulation and variable rate load instruction modification-based primary frequency regulation method
08/08/2012CN102629761A AVC system power grid model maintenance method and system thereof
08/08/2012CN102629760A Method adaptive for coordinated optimization of low-frequency pump sheadding and load shedding with secure and stable frequency
08/08/2012CN102629757A Centralized low voltage ride through correction system
08/08/2012CN102005953B Grid-connected inverter and alternating-current output filter method thereof
08/08/2012CN101986496B Method for forming islands of distribution system containing distributed power supply
08/08/2012CN101968032B Low voltage ride-through monitoring system for doubly-fed wind generator
08/08/2012CN101963787B Dual feedback loop control method of power active filter
08/08/2012CN101924367B High-power intelligent harmonic and reactive current generating device based on IGBT
08/08/2012CN101860044B Method for cooperatively controlling reactive voltage of wind farm
08/08/2012CN101847878B Connected grid wind-light complementation control inverting device
08/08/2012CN101752874B Movable electricity transmission method based on turn-off device
08/08/2012CA2766570A1 Dynamic voltage restoration system and method
08/07/2012US8238125 Power system
08/07/2012US8237308 Dynamic electrical load management
08/07/2012DE202012006608U1 Steuereinheit zur Pufferung elektrischer Energie am Hausnetz mit der Möglichkeit der autarken Stromversorgung der elektrischen Anlage über Schützschaltungen Control unit for buffering electrical energy at the home network with the possibility of grid power to the electrical system via contactor circuits
08/07/2012CA2817822A1 Power control device
08/07/2012CA2766768A1 System and method for mitigating an electric unbalance of a three-phase current at a point of common coupling between a wind farm and a power grid
08/02/2012WO2012101911A1 Power control device and power system
08/02/2012WO2012101873A1 Electricity control system
08/02/2012WO2012101318A1 An arrangement and a method for synchronizing a generator set to an electric network
08/02/2012WO2012101258A1 Local power supply installation
08/02/2012WO2012101113A2 Management of the energy supply for a local energy transport network
08/02/2012WO2012100815A1 Regulation method for a photovoltaic system and photovoltaic system
08/02/2012WO2012100578A1 Alternator and electricity generation method thereof
08/02/2012WO2012100538A1 Communication power source with multi-energy supply and control method thereof
08/02/2012US20120197683 System and method for conserving energy resources through storage and delivery of renewable energy
08/02/2012US20120193991 Active desynchronization of switching converters
08/02/2012US20120193989 Operating direct current (dc) power sources in an array for enhanced efficiency
08/02/2012US20120193985 Washing machine and method of controlling the same
08/02/2012US20120193982 Shore power transfer switch
08/02/2012DE102012201206A1 Elektrische Vorrichtung, Energiemanagementeinrichtung und Verfahren für deren Steuerung An electrical device, energy management device and methods for their control
08/02/2012DE102011003459A1 Elektrische Schaltung für einen Windpark Electrical circuit for a wind farm
08/02/2012DE102011000459A1 Verfahren zur Lieferung von Blindstrom mit einem Umrichter sowie Umrichteranordnung und Energieversorgungsanlage A method of providing reactive current with an inverter and converter arrangement and power supply system
08/02/2012DE102011000394A1 Lokale Energieversorgungsanlage Local energy supply system
08/02/2012CA2766593A1 Energy storage and power management system
08/01/2012EP2482421A1 Reactive voltage control system and method for wind power field of double-fed wind power-generating units
08/01/2012EP2482420A2 Power flow regulator including a plurality of DC-DC converters
08/01/2012EP2482419A1 Power conversion device and fuel cell system provided therewith
08/01/2012EP2482418A1 Active desynchronization of switching converters
08/01/2012EP2482417A2 Systems, Methods, and Apparatus for Accelerating Volt/VAR Load Flow Optimization
08/01/2012EP2482416A1 On-load tap changer control method for a power excitation chain, related unit and power excitation chain comprising such unit
08/01/2012EP2482415A1 On-load tap changer control method, excitation control system carrying out said control method and power excitation chain
08/01/2012EP2482414A2 Device for generating torsional electromagnetic wave and electric power system employing the same
08/01/2012EP2481923A1 Output control method and output control device for wind-powered electricity generating facility
08/01/2012EP2481842A1 Washing machine, power management apparatus and method of controlling the same
08/01/2012EP2481139A2 Hod for controlling a power converter in a wind turbine generator
08/01/2012EP2297832B1 Time delay compensation in power system control
08/01/2012EP1879824B1 Elevator system
08/01/2012CN202364159U Photovoltaic energy storing device
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