Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663)
02/2008
02/14/2008WO2008019270A2 Smart power saving power supply
02/14/2008WO2008017754A2 Method and system of real time management and modulation of electricity consumption
02/14/2008WO2008017581A1 Parameter estimation for a thermal model of a power line
02/14/2008WO2007149132A3 Power distribution system
02/14/2008US20080037305 Monopolar dc to bipolar dc to ac converter
02/14/2008US20080036428 Connecting A Prime Mover Driven Alternator To A Circuit With An Existing Alternating Current
02/14/2008US20080036299 Standby power supply apparatus
02/14/2008DE102006037606A1 Method for electrical power supply and demand, requires assignment of computing device to electrical power consumer and using electrical power supplier data
02/14/2008CA2656524A1 Method and system of real time management and modulation of electricity consumption
02/13/2008EP1887675A2 Photovoltaic facility with insulating resistance measurement of solar generators and method for operating the same
02/13/2008EP1887674A1 Distributed generation system with improved network power quality
02/13/2008EP1887673A1 Parameter estimation of a thermal model of a power line
02/13/2008EP1886434A1 Method for transmitting data for controlling an hvdct system
02/13/2008EP1886392A1 Method for avoiding undesired, measurement error-induced protective tripping within a protection system of an hvdc transmission system
02/13/2008CN201022150Y Static phase forward part
02/13/2008CN101123416A Device and control method for elevator energy saving reverse control technology
02/13/2008CN101123352A Rear change converter of wind power generation system and its loop current control method
02/13/2008CN101123351A Elevator energy-saving reverse conversion synchronization technical device and its synchronization method
02/13/2008CN101123350A An integrated power-saving protection control system
02/13/2008CN100369345C Series-type voltage quality disturbing generating device
02/13/2008CN100369344C Synthetized compensation device in electric power system and synthetized compensation method
02/12/2008US7330363 Converter circuit with two converter elements
02/12/2008US7330362 Switching converter having at least two converter stages
02/12/2008US7330016 Induction generator power supply
02/07/2008WO2008015897A1 Power system and method for supplying ac power
02/07/2008WO2008015886A1 Power system and method for managing charging state in that power system
02/07/2008WO2008015502A1 Bilaterlal uninterruptable power supply (ups) unit
02/07/2008WO2008015306A2 Reactive energy compensator
02/07/2008WO2008015298A1 Single-phase inverter circuit for conditioning and converting dc electrical energy into ac electrical energy
02/07/2008US20080030079 Systems and methods for improving the ability of a power delivery system to withstand multiple failure events
02/07/2008US20080030075 Powering a wireless system from preexisting power
02/07/2008CA2657089A1 Power system and method for supplying ac power
02/06/2008EP1883877A1 Apparatus and method to compensate for effects of load capacitance on power regulator
02/06/2008CN201018445Y Overlapping dual-rotor motor and variable speed and variable frequency excitation system of the wind generating set
02/06/2008CN201018406Y Harmonic suppression device for variable frequency energy-saving controller
02/06/2008CN201018292Y Modified type photovoltaic network inverter
02/06/2008CN201018291Y Intelligent peak-to-valley time-sharing power saver
02/06/2008CN201018290Y Electric charge adjusting controller of low-voltage distribution system
02/06/2008CN201018289Y Adjustable oil extractor reactive power source
02/06/2008CN201018288Y Electric power distribution synthetic monitoring/controlling instrument
02/06/2008CN201018287Y Self-starting device of static reactive generators
02/06/2008CN201018286Y Column type reactive compensator
02/06/2008CN201018285Y Numerical control multi-order switching reactive compensator
02/06/2008CN201018284Y Economically intelligent synthetic power distribution unit
02/06/2008CN201018283Y Low-voltage distribution system
02/06/2008CN201018282Y Automatic switching filter device
02/06/2008CN201018281Y Intelligent pairing device
02/06/2008CN101120497A Power supply control apparatus
02/06/2008CN101119031A Photovoltaic three-phase grid control method for fast and steadily implementing maximal power tracing
02/06/2008CN101119030A 10KV and below power distribution network compensating capacitor configuring method
02/06/2008CN101119029A Automatic power generation controlled advance control method for power system
02/06/2008CN101119026A High-power electric energy-saving device and control method for elevator
02/06/2008CN100367622C Vehicle
02/06/2008CN100367621C High-voltage network high-capacity powerfree compensation continuous regulation method
02/06/2008CN100367620C Power network topology error identification method based on mixed state estimation
02/05/2008US7327586 Power supply unit and lighting device for vehicle
01/2008
01/31/2008US20080024011 Composite backup-type power supply system
01/31/2008US20080024009 Portable hand held multi-source power inverter with pass through device
01/31/2008US20080024007 Multiple load hybrid power supply
01/30/2008EP1882216A2 Multi-level active filter
01/30/2008CN201015168Y Capacitance compensation power distribution cabinet
01/30/2008CN101116232A Building energy management system
01/30/2008CN101114771A Wind-electricity integration power stabilizer based on active type voltage source DC power transmission
01/30/2008CN100365912C Automatic input device and control method for emergency power supply of bus for middle-low voltage section factory
01/30/2008CN100365905C DSP control static power-free generator based on IGBT module and control method therefor
01/30/2008CN100365904C Controllable series capacity compensation device non linear controller and construction method
01/30/2008CN100365903C Single-phase AC inputting electromagnetic interference killer circuit
01/30/2008CN100365902C Energy distribution network
01/29/2008US7325147 Personal computer operation environment presetting system and method based on detecting an input AC power source voltage on the personal computer when a wireless LAN card is mounted therein
01/29/2008US7324977 Historical database system for resolving energy imbalance requirements in real-time
01/29/2008US7323793 System and method for driving one or more loads
01/24/2008WO2007135073A3 Detecting faults in power systems
01/24/2008WO2006078544A3 Low-noise switching voltage regulator and methods therefor
01/24/2008US20080018175 Electrical power distribution system and method thereof
01/24/2008US20080018174 Power control apparatus and method thereof
01/24/2008DE102006032389A1 Windpark sowie Verfahren zum Betreiben eines Windparks Wind park as well as methods for operating a wind farm
01/23/2008EP1880459A2 Wind farm and method for controlling the same
01/23/2008EP1880458A1 Tuning methods and apparatus for inductively coupled power transfer (icpt) systems
01/23/2008EP1879824A1 Elevator system
01/23/2008CN101111981A Mapping power system components
01/23/2008CN101110518A Method for synchronization of three-phase parallel type inversion module
01/23/2008CN101109315A Marsh gas power generation system for organic materials
01/23/2008CN100364223C Power supply system and air conditioning device
01/23/2008CN100364201C System interconnection inverter device
01/23/2008CN100364200C Power converter
01/23/2008CN100364199C Single-phase active electric-power filter using analog cascade connection controller
01/22/2008USRE40016 Power factor correction control circuit
01/22/2008US7321834 Method for calculating power flow solution of a power transmission network that includes interline power flow controller (IPFC)
01/22/2008US7321810 Method of dynamic economic dispatch
01/22/2008US7321500 Electric power converter
01/22/2008US7321011 Self-emulsifying copolymer
01/17/2008WO2008006192A1 Method and apparatus for managing an energy consuming load
01/17/2008US20080015742 Method and apparatus for managing an energy consuming load
01/17/2008US20080013347 Method and apparatus for adjusting wakeup time in electrical power converter systems and transformer isolation
01/17/2008US20080012423 USB connector devices for charging
01/17/2008DE202007014924U1 Energieterminal zur Anordnung an einem Kai Power terminal arrangement at a quay
01/17/2008DE102006033046A1 Anordnung und Verfahren zum Versorgen von Verbrauchern in einem Schienenfahrzeug Arrangement and method for supplying consumers in a railway vehicle,
01/17/2008CA2654870A1 Method and apparatus for managing an energy consuming load
01/16/2008EP1879277A2 Wind farm and method for operating a wind farm
01/16/2008EP1879091A1 Voltage sag generator device