Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663)
12/2012
12/19/2012CN102832614A Robust optimizing method for power generation plan under uncertain environment
12/19/2012CN102832613A Power equipment control system
12/19/2012CN102832605A Anti-interference electricity system and control method based on SFCL (superconducting fault current limiter) and super capacitance energy storage
12/19/2012CN102832582A Online anti-icing and de-icing control system of alternating current electrified railway catenary
12/19/2012CN102832028A Broadband filtering compensation transformer
12/19/2012CN102832027A Single-phase electricity-saving autotransformer and control method
12/19/2012CN102831719A Orderly alternate electric vehicle charging control system capable of preventing overload of power grid
12/19/2012CN102831718A System and method for the sale and purchase of energy
12/19/2012CN102829575A Multisource region type cold, heat and electricity combined supply energy network system and method
12/19/2012CN102170128B Method and system for dynamic optimization control of electric power system
12/19/2012CN102122825B Temperature difference energy storage grid electricity peak shaving system
12/19/2012CN102118034B Method for stabilizing power system of marine gas turbine generator set
12/19/2012CN102104253B Oversampling digital realizing method for APF hysteresis current tracking and controlling
12/19/2012CN102074971B Feedback load energy-saving circuit for aging test and control method thereof
12/19/2012CN102025161B Five-level dual-buck parallel active power filter (APF) and dual-frequency half-wave control method thereof
12/19/2012CN101950968B Control method of railway power regulator based on half-bridge structure
12/19/2012CN101917011B Power quality comprehensive control method and device for electric railway traction power supply system
12/19/2012CN101882791B Controllable serial capacitor optimal configuration method capable of improving available transmission capacity
12/19/2012CN101789629B Electricity-saving space evaluating system and method
12/18/2012US8335936 Power node with network switch
12/18/2012US8335574 Power controlling device and methods of use
12/18/2012US8335061 Protection circuit, resonant converter including the protection circuit, and protecting method of the resonant converter
12/18/2012US8334618 Method and area electric power system detecting islanding by employing controlled reactive power injection by a number of inverters
12/18/2012US8334616 Photovoltaic integrated variable frequency drive
12/18/2012US8334615 System, apparatus and method for power transfer to vessels
12/17/2012DE202012104399U1 Dreiphasentransformatorsystem und Netz mit einem solchen Dreiphasentransformatorsystem Three-phase transformer system and network with such a three-phase transformer system
12/13/2012WO2012171014A2 Smart and scalable off-grid mini-inverters
12/13/2012WO2012170726A2 Solar panel systems having solar panels arranged in parallel, and associated methods
12/13/2012WO2012170323A1 System and method for managing power consumption
12/13/2012WO2012170320A1 System and method for managing power consumption
12/13/2012WO2012169902A1 System for supplying electricity
12/13/2012WO2012169879A2 A power control device for an electrical installation of a building and a method of power controlling an electrical installation of a building
12/13/2012WO2012169045A1 Uninterruptible power supply system
12/13/2012WO2012169013A1 Operation control device for photovoltaic power generation system
12/13/2012WO2012168772A1 Charging control device and charging control system
12/13/2012WO2012168323A1 Control unit for an electrical generation/consumption system
12/13/2012WO2012167835A1 Method for energizing a chain-link converter, controller, computer programs and computer program products
12/13/2012WO2012167834A1 A compensating system for medium or high voltage applications
12/13/2012WO2012167826A1 High voltage dc/dc converter with cascaded resonant tanks
12/13/2012US20120313559 Battery module, electronic apparatus, electric power storage system, electric power system, and electric vehicle
12/13/2012US20120313436 Renewable energy enhanced apparatus
12/13/2012US20120313432 Power distribution system connecting apparatus
12/13/2012DE102011106217A1 Hybrid power plant for continuously supplying predetermined amount of electric power to electric current supply network, has control device generating control signal for closing switching device upon request by request signal
12/13/2012DE102011106114A1 Verfahren zur Verteilung von elektrischer Energie in einem Stromnetzwerk mit einer Vielzahl von Verteilungszellen A process for the distribution of electrical energy in a power network comprising a plurality of distribution cells
12/13/2012DE102011103449A1 Vorrichtung zur Versorgung eines Hauses mit elektrischer Energie Apparatus for supplying a house with electricity
12/13/2012DE102009007796B4 Verfahren und Vorrichtung zur Versorgung einer in der Umgebung eines Elektromotors angeordneten elektrisch betätigten mechanischen Bremse Method and apparatus for supplying a arranged in the vicinity of an electric motor electrically actuated mechanical brake
12/13/2012CA2838880A1 A compensating system for medium or high voltage applications
12/13/2012CA2838775A1 Method for energizing a chain-link converter, controller, computer programs and computer program products
12/13/2012CA2833450A1 High voltage dc/dc converter with cascaded resonant tanks
12/12/2012EP2533413A1 Synchronisation of an inverter with an electrical circuit network
12/12/2012EP2533412A2 Solar power conversion apparatus
12/12/2012EP2533395A2 Energy supply/demand control system
12/12/2012EP2533392A1 Dispositif d'alimentation d'une habitation en énergie électrique
12/12/2012EP2533391A2 Multi-source management system of electrical generators
12/12/2012EP2533390A2 Load phase balancing at multiple tiers of a multi-tier hierarchical intelligent power distribution grid
12/12/2012EP2533389A2 Method for distributing electrical energy in a power network with a number of distribution network cells
12/12/2012EP2533299A1 Monitoring of distributed power harvesting systems using DC power sources
12/12/2012EP2533294A2 Solar module and method for its operation
12/12/2012EP2533189A1 Power demand-supply system
12/12/2012EP2532888A1 Arrangement for generating a control signal for controlling a power output of a power generation system
12/12/2012EP2532065A2 Detection of islanding for grid connected inverter
12/12/2012EP2532064A2 Method and system for facilitating design of a high voltage (hvdc) control system, an hvdc system and a method for optimising an hvdc system
12/12/2012EP2531367A1 Device and method for storing electrical energy
12/12/2012CN202602532U Auxiliary power supply apparatus used for photovoltaic grid-connected inverter
12/12/2012CN202602336U Electromobile charging station
12/12/2012CN202602307U Energy saving device capable of self-parallel connection for feeding back electric energy to power grid
12/12/2012CN202602306U Grid-connected offline micro-grid system
12/12/2012CN202602305U Railway train wind power station
12/12/2012CN202602304U Transformer system preventing inrush current
12/12/2012CN202602303U Generator parallel operation system without limitation to voltage value, frequency and phase difference
12/12/2012CN202602302U Comprehensive grid system for new energy
12/12/2012CN202602301U Energy feedback type diesel engine test apparatus
12/12/2012CN202602300U A single-phase 660V~3.3kV distributed direct power supply system for long distance
12/12/2012CN202602299U Anti-low-frequency ferroresonance apparatus
12/12/2012CN202602298U Voltage-regulating capacitance-regulating type reactive compensation complete device of high voltage line
12/12/2012CN202602297U LDB type JP cabinet
12/12/2012CN202602296U Combined type pump station reactive compensation system
12/12/2012CN202602295U Voltage reactive-power optimization compensation system in distribution transformer power supply area
12/12/2012CN202602294U Multifunctional communication converter for reactive power optimization compensation device
12/12/2012CN202602293U Voltage sag compensation device for direct-current capacitor energy-storage-type dynamic voltage restorer
12/12/2012CN202602292U Multi-branch SVC coordination control system
12/12/2012CN202602291U Wind generating set filter circuit and power generation system
12/12/2012CN202602290U Current-limiting harmonic suppression device for low-voltage system
12/12/2012CN202602289U Filter
12/12/2012CN202602288U GEE power saving system
12/12/2012CN202602287U Active harmonic wave compensation device of high-voltage system
12/12/2012CN202602286U Control device for power active filter
12/12/2012CN202602285U New energy electric field boosting transformer system
12/12/2012CN202602284U Low-voltage DC supply system
12/12/2012CN202602283U Three-phase unbalance monitoring system under reactive power optimization condition
12/12/2012CN202594549U Novel energy feedback elevator
12/12/2012CN102823209A Communication device, communication system, and vehicle
12/12/2012CN102823100A Recharging system
12/12/2012CN102822763A Power converter
12/12/2012CN102822509A Method and control arrangement for controlling a reactive power source
12/12/2012CN102822508A Wind turbine controller applying differential pole control algorithm
12/12/2012CN102820849A Variable frequency speed regulating method for multiple water injection pumps in oilfield water injection station
12/12/2012CN102820800A Solar power conversion apparatus
12/12/2012CN102820676A Electricity-limiting control method for wind farm
12/12/2012CN102820675A Automatic running recovery method considering real measured air speed for wind turbine generator