Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663)
05/2010
05/19/2010CN101162841B Non-linearity PI voltage control method of stillness reactive compensator
05/18/2010US7721213 Graphical interface for configuring a power supply controller
05/18/2010US7719137 DC-DC switching converter device
05/17/2010CA2686062A1 Automatic disconnect system, transfer system and method
05/14/2010WO2010054091A1 Reactive power optimization
05/14/2010WO2010054072A1 Real-time power line rating
05/14/2010WO2010052946A1 Streetlight power supply system
05/14/2010WO2010052258A1 Adaptive power supply
05/14/2010WO2010052188A1 Device for feeding a consumer network with the electric power of a supply network
05/14/2010WO2010051854A1 Chain-link converter, method for starting chain-link converter and static compensator system
05/14/2010WO2010051812A1 Photovoltaic power plant having an offset voltage source controlling the dc potential at the inverter output
05/14/2010WO2010051727A1 Adjustable voltage reactor device on 500kv and extra-high-voltage line
05/14/2010WO2010028954A3 Power control for a wind park
05/14/2010WO2009156261A3 Method for operating a battery energy storage system
05/14/2010WO2009125013A3 Electrical network for aircraft
05/14/2010WO2009125012A3 Electrical network
05/14/2010WO2009125007A3 Method for managing electrical network
05/14/2010CA2743319A1 Chain-link converter, method for starting chain-link converter and static compensator system
05/14/2010CA2742854A1 Real-time power line rating
05/14/2010CA2684131A1 Resonance mitigation system and method
05/13/2010US20100117621 Method of load shedding to reduce the total power consumption of a load control system
05/13/2010US20100117620 Method of load shedding to reduce the total power consumption of a load control system
05/13/2010US20100117453 Multi-capacity power supply for electronic devices
05/13/2010US20100116574 Cost effective configuration for supercapacitors for hev
05/12/2010EP2184833A2 Method and device for controlling a printer should an electrical supply network be interrupted or fail
05/12/2010EP2183848A1 Voltage source converter for high voltage direct current power transmission
05/12/2010EP2183720A2 System and method for active power load management
05/12/2010EP2183651A1 Methods for managing high or low voltage conditions from selected areas of a power system of a utility company
05/12/2010DE202004021675U1 Leistungsversorgungsschaltungen Power supply circuits
05/12/2010DE102008056581A1 Vorrichtung zur Speisung eines Abnehmernetzes mit der elektrischen Leistung eines Versorgungsnetzes Apparatus for powering a customer network with the electric power of a supply network
05/12/2010DE102008054229A1 Verbundsystem zur Erzeugung und elektromechanischen Speicherung von elektrischer Energie Composite system for generating and storing electrical energy electromechanical
05/12/2010DE102008054086A1 Offset angle between the connection voltage of a current direction unit and an external mains synchronizing voltage is established by measured current components
05/12/2010CN201467533U Intelligentized high-reliability driving device
05/12/2010CN201467061U Motor driver with VAR compensation
05/12/2010CN201467023U Solar photovoltaic micro-grid power generation system
05/12/2010CN201467004U inverter
05/12/2010CN201466790U Integrated power distribution system of modularized UPS
05/12/2010CN201466780U Wind generating system
05/12/2010CN201466745U Low-voltage cross-over double-fed wind power generator frequency converter
05/12/2010CN201466744U Wind power generation system with centralized power conversion
05/12/2010CN201466743U Electric energy feedback device
05/12/2010CN201466742U Charging grind electrical equipment of bicycle
05/12/2010CN201466741U Three-phase electricity-saving protection controller
05/12/2010CN201466740U High voltage automatic compensation device
05/12/2010CN201466739U Household universal energy saver
05/12/2010CN201466738U Reactive power compensation device of grid
05/12/2010CN201466737U High-voltage static var compensation device based on minimum system
05/12/2010CN201466736U Static var compensator based on variable reactance
05/12/2010CN201466735U High voltage reactive power compensation device
05/12/2010CN201466734U Intelligent phase control type low-voltage power capacitor
05/12/2010CN201466733U Full-range on-load tap changing reactive power compensation device
05/12/2010CN201466732U Static var compensator for steelmaking electric arc furnace
05/12/2010CN201466731U IGBT driving device of still idle work generator at power matching network side
05/12/2010CN201466730U Still idle work generator at power matching network side
05/12/2010CN201466729U Distributed reactive power compensation and user terminal remote monitoring device
05/12/2010CN201466728U Reactive power on-site compensating device for deep sea motor
05/12/2010CN201466727U Deep sea pressure compensator
05/12/2010CN201466726U Grouping automatic compensation box of high-voltage line capacitor
05/12/2010CN201466725U Voltage compensation device for low-voltage lines
05/12/2010CN201466724U Intelligent single-phase power saving protective controller
05/12/2010CN201466723U Electric device for improving quality of working power grid of electric arc furnace
05/12/2010CN201466722U High voltage filtering device with adjustable filtering rate
05/12/2010CN201466374U Novel three-phase power-saving protective control socket
05/12/2010CN201466373U Three-phase multi-function electricity-saving protection control socket
05/12/2010CN201466372U Novel power-saving protecting control socket
05/12/2010CN201466371U Multifunctional energy-saving protection control socket
05/12/2010CN201466368U Novel power-saving protecting control socket special for TV
05/12/2010CN201466367U Special television socket with intelligent energy-saving protection control function
05/12/2010CN201466366U Novel power-saving protecting control socket special for computer
05/12/2010CN201466365U Special computer socket with intelligent energy-saving protection control function
05/12/2010CN201466364U Single-phase multifunctional electricity-saving protecting and controlling socket
05/12/2010CN201466363U Novel single-phase electricity-saving protective control socket
05/12/2010CN201466359U Full-automatic energy-saving intelligent socket
05/12/2010CN201465815U Non-polarity active electrolytic capacitor
05/12/2010CN201465814U Non-polarity semiconductor electrolytic capacitor
05/12/2010CN201464510U Earth-leakage protection watt-hour meter
05/12/2010CN1992496B Control structure of double-fed AC-DC-AC converter for wind power generation
05/12/2010CN101707393A Automatic switching circuit of power supply
05/12/2010CN101707379A Auxiliary control system for economical operation of regional electric network transformer
05/12/2010CN101707378A Method for dispatching power grid pitch peak capability based on large-scale wind power sychronization
05/12/2010CN101707377A Dynamic comprehension device of split-phase reactive power
05/12/2010CN101707376A Split-phase switch of power capacitor
05/12/2010CN101707375A Closing synchronized switching control cabinet
05/12/2010CN101707374A Direct current (DC) side capacitor voltage balancing control circuit for H-bridge cascaded active power filter
05/12/2010CN101707373A Automatic differentiation based power system state estimation method
05/12/2010CN101707372A Method for calculating and releasing rate of qualified power quality and voltage indexes
05/12/2010CN101707371A Method for identifying equivalent parameters of power system load model under small disturbance condition
05/12/2010CN101707367A Superconducting current-limiting energy storage circuit
05/12/2010CN101707366A Inter-wire superconducting current-limiting tank circuits
05/12/2010CN101707348A Intelligent integrative circuit with electricity leakage protection and reactive compensation
05/12/2010CN101707345A Method for controlling switch controller
05/12/2010CN101706834A Automatic layout method of power dispatching large-screen power transmission grid single line diagram
05/12/2010CN101706778A Method for predicting power load
05/12/2010CN101705913A Floating island type water wind power generation device
05/12/2010CN101705602A Control device of washing machine
05/11/2010US7714463 Device for controlling single-phase power conditioner for renewable energy system
05/11/2010US7714461 Apparatus and methods for reducing resonance in multiple inverter systems
05/06/2010WO2010050138A1 Amount-of-room-for-improvement calculation apparatus, method for controlling same, and amount-of-room-for-improvement calculation program
05/06/2010WO2010049822A1 Electric appliance with energy monitoring and managing means and corresponding method
05/06/2010WO2010049231A2 Device for feeding a consumer network with the electric power of a supply network