Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663)
01/2010
01/28/2010US20100019580 Detachable inverter for a solar module
01/28/2010US20100019575 System and method for creating and controlling a virtual power distribution unit
01/27/2010EP2148417A1 Inverter apparatus for a photovoltaic generator with a plurality of inverters being serially coupled at their input side
01/27/2010EP2148406A2 Power supply system, wireless communication system and illumination system
01/27/2010EP2147492A2 Static var compensator apparatus
01/27/2010EP2147491A1 Active filter having multilevel topology
01/27/2010EP2147490A2 Dynamic voltage sag correction
01/27/2010CN201393183Y Area grid-connected type photovoltaic system
01/27/2010CN201393072Y Device for realizing voltage source parallel current sharing in feedback type direct current power source load circuit
01/27/2010CN201393071Y Power factor compensation system
01/27/2010CN201393070Y Low-voltage reactive-power comprehensive compensation device
01/27/2010CN201393069Y Household electrical power saver
01/27/2010CN101635466A Megawatt-level variable-speed wind-power unit adopting multiphase generator and multilevel converter
01/27/2010CN101635465A Method for calculating transient stability limit value of electric power system according to stability index sensitivity
01/27/2010CN101635464A Magnetic control transient reactive power compensation method
01/27/2010CN101635463A Reactive configuration method for capacity of capacitor bank in substation
01/27/2010CN101635462A Capacity collocation method for substation compensation capacitor
01/27/2010CN101635461A Combined compensation system of injection-type hybrid active power filter and static var compensator
01/27/2010CN101635460A Control method of comprehensive compensation system of negative sequence and harmonic in high-speed electric railway
01/27/2010CN101635459A Switch for the access of single phase wire
01/27/2010CN101635458A Coordinating voltage control method of provincial power network and regional power network based on two-way coordination constraint
01/27/2010CN101635457A Electric network parameter estimation method based on parameter sensitivity of state estimation residual error
01/27/2010CN101635456A Method for joint state estimation of transmission network and distribution network
01/27/2010CN101635455A Method for calibrating characteristic waves of power network by utilizing clock stamp
01/27/2010CN100585978C Apparatus for adjusting capacity of power distribution network
01/27/2010CN100585977C Imbalance compensation and ant colony optimization method of static reactive compensator
01/27/2010CN100585949C Bus groove transmission device and multi-layer bus groove electric connection method
01/27/2010CN100585753C 电力电缆线路 Power cable lines
01/27/2010CN100585131C Turbogenerator
01/26/2010US7653443 Methods, systems, circuits and computer program products for electrical service demand management
01/26/2010US7652394 Responsive electricity grid substation
01/26/2010US7652392 Power supply device and high-frequency circuit system
01/26/2010CA2537999C Method for operating a wind turbine during a disturbance in the grid
01/21/2010WO2009145475A3 Power control apparatus and method thereof
01/21/2010US20100017341 Method and systems for predicting solar energy production
01/21/2010US20100017249 Systems and methods for electric vehicle charging and power management
01/21/2010US20100013647 Hybrid power system
01/21/2010US20100013326 Power station having a consumer and method for its operation
01/21/2010US20100013301 Electric power supply system
01/21/2010DE102008033091A1 Vorrichtung zur Begrenzung des Bezugs elektrischer Energie A device for limiting the reference electric energy
01/21/2010DE102008032813A1 Netzanbindung von Solarzellen Grid Connection of solar cells
01/21/2010CA2673503A1 Transfer switch controller employing active inductive load control and transfer switch including the same
01/20/2010EP2145374A1 Alternative-source energy management
01/20/2010EP2145372A2 Method and device for determining load flow in an electrical supply grid
01/20/2010EP2145371A1 Power station for power transmission to remotely located load
01/20/2010EP2144776A2 Power subassembly for micro-hybrid system in an automobile
01/20/2010EP2144775A2 Power subassembly for micro-hybrid system in an automobile
01/20/2010EP1927186B1 Control method for direct current transmission by means of several power converters
01/20/2010CN201388066Y Paralleling control device of low-power diesel generator unit
01/20/2010CN201388065Y Quasi-synchronization device applying software and hardware frequency measuring and phase measuring combined technology
01/20/2010CN201388064Y Megawatt variable-speed wind turbine generator system employing polyphase generators and multilevel convertors
01/20/2010CN201388063Y Intelligent dynamic reactive power compensation controller
01/20/2010CN201388062Y Special dynamic reactive power compensation device for electrified railway
01/20/2010CN201388061Y High-voltage-to-low-voltage reactive power compensation flexible switching device
01/20/2010CN201388060Y Intelligent high-pressure reactive compensation device
01/20/2010CN201388059Y Operating circuit structure for fuse
01/20/2010CN201388058Y Power-saving compensator
01/20/2010CN201388057Y Power-restraining electricity-saving appliance
01/20/2010CN201388056Y Active power filter
01/20/2010CN201388055Y Power supply processing circuit
01/20/2010CN201388054Y Voltage and current conditioning device used for earth fault diagnosis of medium-voltage distribution network
01/20/2010CN201388053Y Special programmable analog-digital mixed ISA high-speed sampling board for electric power fault recording
01/20/2010CN201387799Y Adjustable iron-core reactor
01/20/2010CN101632211A Power-line sag calculation by way of power-system state estimation
01/20/2010CN101630850A Through power network fault device and through power network fault method of double-fed induction generator
01/20/2010CN101630849A Dynamic reactive power compensation wind power generation box-type substation
01/20/2010CN101630848A Method for balancing single-phase load of electrified railway by SVG
01/20/2010CN101630847A Low inductance interconnect device for a power capacitor component
01/20/2010CN101630846A Low-voltage reactive power compensation switching device
01/20/2010CN101630845A Controller of production clearance reactive power compensation device of power supply and distribution systems of small steel rolling workshop
01/20/2010CN101630844A Novel subsynchronous oscillation damping controller
01/20/2010CN101630843A Alternating current phase modulation energy saver
01/20/2010CN101630842A Implementation method of inverse system controller of active power filter
01/20/2010CN101630841A Dynamic harmonic filter
01/20/2010CN101630840A Intelligent control system for microgrid energy
01/20/2010CN101630839A Transient state and medium and long-term voltage stability distinguishing method based on power current reversal
01/20/2010CN100583586C Unbalanced protection method and device for high-voltage serial connection compensation capacitor group
01/19/2010US7649282 Wind park and method for the operation of a wind park
01/19/2010US7649280 Method and circuit for cross regulation in a power converter
01/19/2010US7648387 Diagnostic jumper
01/19/2010CA2666061C Capacitor bank switching
01/14/2010WO2010005630A2 Methods and systems for managing facility power and cooling
01/14/2010WO2010005324A1 A contactless power receiver and method of operation
01/14/2010WO2010003469A1 Power control module and method for controlling energy flow
01/14/2010WO2009105452A3 Apparatus for controlling electrical power distribution
01/14/2010US20100007210 Green power system
01/14/2010CA2728214A1 Methods and systems for managing facility power and cooling
01/14/2010CA2672333A1 Electrical distribution panel including first non-critical load bus and second critical load bus
01/13/2010EP2144361A1 Method and device for regulating the regenerative power of a base frequency clocked inverter
01/13/2010EP2143186A2 Wind energy plant with reactive power condition
01/13/2010CN201383793Y Electrical control device for self-elevating drilling ship
01/13/2010CN201383685Y Multi-power alternating current variable frequency electric energy feedback device
01/13/2010CN201383684Y Automatic reactive power compensation device of low voltage networks
01/13/2010CN201383683Y Mixed digital analogue active power filter
01/13/2010CN201383682Y Synchronous voltage switching device
01/13/2010CN201383657Y Ice melting device injecting reactive current to ends of power transmission line
01/13/2010CN101627515A Demand control system, demand controller, demand program, and demand control method
01/13/2010CN101626163A Hybrid wind power generation system
01/13/2010CN101626162A Electricity management terminal with power factor compensation function
01/13/2010CN101626161A Method and circuit for realizing harmonic wave self-inhibition in alternating current voltage-regulation voltage-stabilization process