Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663)
09/2012
09/07/2012WO2012117751A1 Power generation system
09/07/2012WO2012117026A2 Control arrangement and method for regulating the output current of a dc source power converter connected to a multi-source dc system
09/07/2012WO2012116738A1 Fault current limitation in dc power transmission systems
09/07/2012WO2012116559A1 Virtual impedance based method for parallel operation of inverters
09/07/2012WO2012116532A1 Power-generating apparatus
09/07/2012WO2012116428A1 Methods, systems, and apparatus for natural power collection and distribution
09/07/2012WO2012092606A3 Line cord a ride-through functionality for momentary disturbances
09/07/2012WO2012084196A3 Responsive load system and method
09/07/2012WO2012082430A3 Methods, systems, and software for controlling a power converter during low (zero)-voltage ride-through conditions
09/07/2012WO2012078433A3 Computing architecture for autonomous microgrids
09/07/2012WO2012010649A3 Operating an inductive energy receiver
09/07/2012WO2011141807A3 Uninterruptiple power supply systems and methods supporting load balancing
09/07/2012WO2011101189A3 Energy generating system and control thereof
09/07/2012WO2011032783A3 Gateway and method for network stabilisation
09/07/2012CA2828645A1 Control arrangement and method for regulating the output current of a dc source power converter connected to a multi-source dc system
09/07/2012CA2828606A1 Methods, systems, and apparatus for natural power collection and distribution
09/07/2012CA2828342A1 Simultaneous detection of communications signals on all phases of a multi-phase power distribution network
09/06/2012US20120223679 Power conversion device, power generation system and charge and discharge control method
09/06/2012US20120223580 Methods, systems and apparatus for natural power collection and distribution
09/06/2012US20120223579 Electrical charging and discharging system and charge and discharge control device
09/06/2012DE102011013609A1 Method for supplying power to load e.g. TV set, involves supplying missing amount of energy by switching on additional peripheral power generators if metered over-consumption of load units is above threshold value
09/06/2012DE102011012695A1 Geographisch beeinflusstes Blindleistungsmanagement Geographically influenced reactive power management
09/06/2012CA2770166A1 Systems and methods of data transmission and management
09/05/2012EP2495864A1 Control arrangement and method for regulating the output current of a dc source power converter connected to a multi-source dc system
09/05/2012EP2495840A2 Power conversion apparatus
09/05/2012EP2495839A1 Energy system
09/05/2012EP2495838A1 Method and device for stabilising the power supply operation of an energy supply network
09/05/2012EP2495837A1 Consumer and system with inductive energy transfer
09/05/2012EP2495436A1 Wind power generator control device and control method
09/05/2012EP2494737A2 Method of controlling network system
09/05/2012EP2494736A2 Method of controlling network system
09/05/2012EP2494735A2 Network system and method of controlling the same
09/05/2012EP2494671A2 Wind power plant with optimal power output
09/05/2012EP2494670A2 System and method for optimizing power loads in a power distribution unit
09/05/2012EP2494104A2 Device and method for controlling electric product
09/05/2012CN202424718U Low voltage power line carrier isolator
09/05/2012CN202424590U Temperature difference solar power generation wall
09/05/2012CN202424525U Frequency converter
09/05/2012CN202424240U Multifunctional photovoltaic UPS (Uninterruptible Power Supply) system
09/05/2012CN202424201U Parallel operation control device of ship power station
09/05/2012CN202424200U Device for achieving synchronous high frequency modulation
09/05/2012CN202424199U Device and system with high-frequency reverse transmission and unidirectional transmission functions
09/05/2012CN202424198U Sunlight automatic sensing system for grid-connected inverter
09/05/2012CN202424197U Low-voltage ride through device of constant-speed constant-frequency wind generator set
09/05/2012CN202424196U Large-capacity energy storage converter formed by connecting multiple groups of inverter units in parallel
09/05/2012CN202424195U IGBT switch tube protection system for inverter CO2 welder
09/05/2012CN202424194U Formation electricity storing system for lithium ion battery
09/05/2012CN202424193U Energy storage and unloading device of wind power generation system
09/05/2012CN202424192U Reactive compensation circuit
09/05/2012CN202424191U Reactive compensator concentrator
09/05/2012CN202424190U Port belt conveyor conveying power supply system equipped with dynamic compensation device
09/05/2012CN202424189U Modular capacitance compensation device
09/05/2012CN202424188U Motor control device and two-for-one twister thereof
09/05/2012CN202424187U Movable static var generator
09/05/2012CN202424186U Voltage compensation device for traction substation
09/05/2012CN202424185U Submersible series-capacitor compensation device
09/05/2012CN202424184U Optimized reactive voltage compensation system based on reactive power flow analysis for 10kV line
09/05/2012CN202424183U Medium-voltage capacitance compensation cabinet
09/05/2012CN202424182U Intelligent maintenance-free high-voltage reactive compensation monitoring device
09/05/2012CN202424181U Microcontrol energy saving unit
09/05/2012CN202424180U Three-phase low-voltage asynchronous motor reactive terminal compensation energy-saving device
09/05/2012CN202424179U Automatic load regulating device of parallel generator set
09/05/2012CN202424178U Three-phase load imbalance adjusting switch
09/05/2012CN202424177U Frequency conversion voltage regulation control system based on boost chopper technology
09/05/2012CN202424176U High-frequency absorption and energy saving device for power supply
09/05/2012CN202424175U Active filter compensation complete set device
09/05/2012CN202424174U Low-voltage dynamic filtering compensation device for transformer
09/05/2012CN202424173U Low-voltage high-power passive filter circuit
09/05/2012CN202424172U Active power filter
09/05/2012CN202424171U Manual operated power restoration protection switch
09/05/2012CN202424170U Intelligent power-saving cabinet
09/05/2012CN202424169U Wind power control system
09/05/2012CN202424168U Load-isolating switch box for crossing power substations to supply power
09/05/2012CN202424167U Primary step-down station power system for 1,000kV ultrahigh voltage substation
09/05/2012CN202424166U Electric system of self-propelled type touring car
09/05/2012CN202424165U 170 V type high-temperature superconduction 10 kV power supply transmission and transformation line
09/05/2012CN202424133U High power motor differentiation protection system
09/05/2012CN202423893U Reactive power compensation cabinet
09/05/2012CN202422977U Balancing transformer for converting three-phase to two-phase
09/05/2012CN202422940U Single-phase double-column oblique-angle elliptic iron-core magnetic-control electric reactor
09/05/2012CN202422937U Magnetically controlled reactor with single-phase double-column right-angled circular iron cores
09/05/2012CN202422936U Double-three column bevel angle round iron core magnetic control electric reactor
09/05/2012CN202422935U Magnetically controlled reactor having six-climb elliptical-section core and right-angle joint seam
09/05/2012CN202421797U Measurement and control unit for low-voltage static Var generator
09/05/2012CN1992465B Method for power balancing of multiple synchronized generators and synchronized generator system
09/05/2012CN1945920B Method for operation of a converter system
09/05/2012CN1941537B Power conditioner
09/05/2012CN102656770A Power control method, communication apparatus, and power control system
09/05/2012CN102656765A Power supplying system, control apparatus for power supplying system, operating method for power supplying system, and control method for power supplying system
09/05/2012CN102656764A DC power source for high voltage power apparatus
09/05/2012CN102655389A Industry driver provided with external inductor
09/05/2012CN102655385A Soft starter of three-phase asynchronous motor and control method of soft starter
09/05/2012CN102655332A Method for controlling network side rectifier of brushless double-feed wind-driven generator under unbalanced electric network
09/05/2012CN102655331A Surface solar energy and hydropower combined power generation method
09/05/2012CN102655330A New energy resource electric power system and method thereof
09/05/2012CN102655329A Battery control system and battery control method
09/05/2012CN102655328A Error-free voltage-stabilizing method of special frequency converter for motor
09/05/2012CN102655327A Control method for sliding mode converter control structure of active power filter containing parameter perturbation
09/05/2012CN102655326A Forming method for neural network inverse controller of active power filter
09/05/2012CN102655325A Simplified analysis method of power distribution network tidal current