Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663)
04/2011
04/13/2011CN201797334U Solar electric automobile charging station
04/13/2011CN201797326U Multifunctional power network simulator
04/13/2011CN201797325U Multi-input parallel feedback energy-saving electronic load
04/13/2011CN201797324U Intelligent microgrid
04/13/2011CN201797323U Automatic capacitance-adjusting capacitor device
04/13/2011CN201797322U Grouping switching reactor cabinet
04/13/2011CN201797321U Static reactive power compensation generator for power distribution
04/13/2011CN201797320U Capacitance compensation fling-cut switch device
04/13/2011CN201797319U Dynamic reactive power compensation device of large motor with voltage adjusting soft start function
04/13/2011CN201797318U Reactance-adjustable reactive power compensator
04/13/2011CN201797317U Power grid harmonic suppression device
04/13/2011CN1933274B H bridge cascade active electric filter DC side capacitance-voltage equalizing controlling method
04/13/2011CN102017383A Wind energy plant having converter control
04/13/2011CN102017352A Circuitry for feeding a drive machine having a plurality of winding systems
04/13/2011CN102013871A Frequency variable electricity saver for three-phase injection molding machine
04/13/2011CN102013777A Variable speed synchronous generator
04/13/2011CN102013703A Measurement injection-based generator model parameter checking method
04/13/2011CN102013702A Dynamic equating method for grid-connected wind farm in case of external power grid failure
04/13/2011CN102013701A Method for calculating photovoltaic power generation accepting capability of power grid of high-altitude region
04/13/2011CN102013700A Large-and-medium-sized photovoltaic power station grid-connected characteristic research and electric energy quality evaluation method
04/13/2011CN102013699A Method for distributing active power of wind power station
04/13/2011CN102013698A Novel control method of double-feed wind-driven generator converter
04/13/2011CN102013697A Voltage/reactive power comprehensive intelligent control method for wind farm
04/13/2011CN102013696A Transformer free inductance energy-storing topological structure
04/13/2011CN102013695A Grid-connected topology structure without transformer based on H-bridge used for wind power generation
04/13/2011CN102013694A Transformerless wind power generation grid-connected topology structure based on MMC
04/13/2011CN102013693A Safety grid connection method for generator set and control loop
04/13/2011CN102013692A Solar energy generating system and control system of header box thereof
04/13/2011CN102013691A Battery energy storage topology structure without transformer based on MMC modularized multi-level inverter
04/13/2011CN102013690A MMC (multimedia controller)-based modular multi-level transformerless inductive energy storage topological structure
04/13/2011CN102013689A Judgment method for exciting main network oscillation mode by using subarea oscillation mode
04/13/2011CN102013688A Synchronous switch for controlling switching of three-phase power capacitor
04/13/2011CN102013687A Reactive power compensation device
04/13/2011CN102013686A Integrated intelligent variable capacitor
04/13/2011CN102013685A Transformerless STATCOM (Static Compensator) topological structure based on MMC (Modular Multilevel Converter)
04/13/2011CN102013684A Algorithm for harmonic wave and reactive power compensation command current
04/13/2011CN102013683A Method for reducing overshooting voltage in active filter
04/13/2011CN102013682A Current injection device and method
04/13/2011CN102013681A Three-phase solar inversion output waveform dynamic compensation control method
04/13/2011CN102013680A Fast decoupled flow calculation method for power systems
04/13/2011CN102013679A Method for analyzing influence on power grid after large-scale wind power central integration
04/13/2011CN102013678A Method for displaying full view of wind power information on dispatching automation system
04/13/2011CN102013307A On-load capacity-regulation distributing transformer
04/13/2011CN102013041A Accident beforehand case calling method for dispatching automation system
04/13/2011CN102012468A Multifunctional power-grid quality monitoring device
04/13/2011CN102011678A Wave-activated power generation method and system for implementing same
04/13/2011CN102011673A Runoff kinetic energy power plant
04/13/2011CN102011471A Solar cell wall brick
04/13/2011CN101728834B Reactive automatic compensating method
04/13/2011CN101615772B Ice-melting method of transmission line with ends therefore infused with reactive current
04/13/2011CN101557110B On-line analysis and aid decision making method for low-frequency oscillation of electric power system
04/13/2011CN101465546B Electric energy quality synthesis evaluation system
04/13/2011CN101262134B Power transmission and parallel network system for large solar power generation system
04/12/2011US7924134 Inductor packaging for power converters
04/12/2011US7923868 Method and apparatus for adjusting a power supply of an integrated circuit
04/12/2011US7923864 Power feed system, terminal device, power feeding method and computer readable medium
04/12/2011US7923856 Low voltage control interface coupler for multipulse transmitter
04/12/2011US7923855 Communication between network interface device and subscriber devices via power supply lines
04/12/2011CA2715351A1 Utility-interactive inverter system architecture and method of operation thereof
04/07/2011WO2011040689A1 Voltage-regulating system for a power system, and voltage-regulating method
04/07/2011WO2011040656A1 System and method for operating a microgrid
04/07/2011WO2011040471A1 Charge/discharge control device and power generating system
04/07/2011WO2011040470A1 Charge/discharge control device and power generating system
04/07/2011WO2011039610A1 Energy management system and power feed control device
04/07/2011WO2011039604A1 Device for monitoring source of electric power supplied to storage battery in power supply system
04/07/2011WO2011039603A1 Electric power monitoring system
04/07/2011WO2011039599A1 Power distribution system
04/07/2011WO2011039586A1 Electric power management system
04/07/2011WO2011039585A1 Electric power management system
04/07/2011WO2011039552A2 Method for minimizing neutral point voltage of a three-phase electric network
04/07/2011WO2011039249A1 An electrical power conversion system and method
04/07/2011WO2011039045A2 System to store and to transmit electrical power
04/07/2011WO2011038981A2 Adapter for coupling a current consumer to a power supply network
04/07/2011WO2011038756A1 Phase angle drift detection method for loss of mains /grid protection
04/07/2011WO2011020831A9 Electrical charging device
04/07/2011US20110081945 High Efficiency Laser Drive Apparatus
04/07/2011US20110080758 Plant for transmitting electric power
04/07/2011US20110080046 Master and slave power outlet system
04/07/2011US20110080045 Solar energy system for a building
04/07/2011US20110080044 Standalone unit of a standalone power grid for communicating energy requests with another standalone unit
04/07/2011DE102009047980A1 Activation control device for controlling separation switch device in current path between photo voltaic system and low voltage network, has program part enabling switching-on and off separation switch device in time controlled manner
04/07/2011DE102009047794A1 Adapter zum Koppeln eines Stromverbrauchers mit einem Stromversorgungsnetzwerk Adapter for coupling a power consumer with a power supply network
04/07/2011DE102009043530A1 Elektrische Antriebswelle und Fahrzeug mit einer derartigen elektrischen Antriebswelle Electric drive shaft and vehicle with such an electric drive shaft
04/07/2011DE102009043380A1 Charging control system for controlling unidirectional charging process of electrical vehicle, has charging control unit receiving predicted charging motion and controlling charging of battery in relation to unidirectional charging motion
04/07/2011CA2776255A1 Phase angle drift detection method for loss of mains /grid protection
04/07/2011CA2775771A1 System to store and to transmit electrical power
04/07/2011CA2775623A1 An electrical power conversion system and method
04/06/2011EP2306649A2 Phase-locked-loop circuit
04/06/2011EP2306610A1 System to store and to transmit electrical power
04/06/2011EP2306213A1 Power saving system for household electric appliance
04/06/2011EP2304861A2 Energy systems, energy devices, energy utilization methods, and energy transfer methods
04/06/2011EP2304858A1 A plant for transmitting electric power
04/06/2011EP2304513A1 Water heater demand side management system
04/06/2011EP1262090B1 Lighting system
04/06/2011EP1261096B1 Stability prediction for an electric power network
04/06/2011CN201789467U Double-fed wind-driven generation unit low-voltage-ride-through frequency conversion control system
04/06/2011CN201789459U Large high-voltage motor capacitance energy-storage compensating starter
04/06/2011CN201789306U Solar grid-connected inverter with starting point test function
04/06/2011CN201789305U Power supply system
04/06/2011CN201789304U Three-phase rectifying and reactive power compensation circuit