Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663) |
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01/11/2012 | CN101710712B Automatic recovery method for power loss of shipping grid |
01/11/2012 | CN101694944B Grid-connected seamless switching controller based on capacitive current inner ring and control method thereof |
01/11/2012 | CN101630846B Low-voltage reactive power compensation switching device |
01/11/2012 | CN101540504B Current analytical device and method on basis of step-length variable neural network |
01/11/2012 | CN101517879B Method for control of inverters |
01/11/2012 | CN101512864B Apparatus and method for transmission system |
01/11/2012 | CN101478166B Minimum energy compensation control and analysis method for three-phase electric system DVR |
01/11/2012 | CN101441244B Criterion for measuring breaking step oscillation center position based on in situ electric quantity |
01/11/2012 | CN101183791B Static reactive compensator and active power filter combined operation system and control method thereof |
01/11/2012 | CN101047316B System, method, and article for determining parameter values associated with an electrical grid |
01/10/2012 | US8093765 System for noise reduction in circuits |
01/10/2012 | US8093758 Method and apparatus for control of inductively coupled power transfer systems |
01/10/2012 | US8093756 AC power systems for renewable electrical energy |
01/10/2012 | US8093753 Sequential control master-slave socket device |
01/10/2012 | US8093752 Synchronization of plural DC-DC voltage converters |
01/10/2012 | US8093751 Method and system for controlling power to an electrically powered device |
01/10/2012 | US8093749 Sharing redundant power supply modules among physical systems |
01/10/2012 | US8093748 Universal power inlet system for power distribution units |
01/10/2012 | US8093745 Sensing current flowing through a power line |
01/09/2012 | CA2745312A1 Apparatus for providing an input dc voltage for a photovoltaic inverter and photovoltaic system including such apparatus |
01/05/2012 | WO2012002449A1 Energy management system |
01/05/2012 | WO2012002429A1 Charge/discharge control apparatus |
01/05/2012 | WO2012002286A1 Heat storage type air conditioning system and heat storage type showcase system control device |
01/05/2012 | WO2012002275A1 Heat-storage air conditioning system and storage battery, and control device for heat-storage showcase system and storage battery |
01/05/2012 | WO2012002001A1 Power control method, program, and power control device |
01/05/2012 | WO2012000549A1 Method and control device for controlling power flow within a dc power transmission network |
01/05/2012 | WO2012000548A1 A multi-terminal dc transmission system and method and means for control thereof |
01/05/2012 | WO2012000538A1 Switching on end devices according to network load |
01/05/2012 | WO2012000515A2 Controlling a wind power plant transformer |
01/05/2012 | WO2012000510A1 Method and system for monitoring structural health of a filter in a wind turbine, and a wind turbine |
01/05/2012 | WO2012000144A1 Wire connecting method and converter station for ultra-high voltage direct current power transmission, and ultra-high voltage direct current power transmission system |
01/05/2012 | WO2011141798A3 Electric power control apparatus and grid connection system having same |
01/05/2012 | WO2011126661A3 Energy storage system for peak-shaving of drilling rig power usage |
01/05/2012 | WO2011126221A3 Power control system by using distributed generation |
01/05/2012 | WO2011112255A3 Regulation of contribution of secondary energy sources to power grid |
01/05/2012 | WO2011094414A3 Advanced topologies for offshore power systems |
01/05/2012 | US20120004784 Apparatus and method for energy management |
01/05/2012 | US20120001490 Electronic device and method of controlling the same |
01/05/2012 | US20120001488 Method and system for controlling power to an electrically powered device |
01/05/2012 | US20120001487 Load Control System That Operates in an Energy-Savings Mode When an Electric Vehicle Charger is Charging a Vehicle |
01/05/2012 | US20120001486 Power supply system |
01/05/2012 | US20120000609 Power supplying means having shielding means for feeding line and substrate processing apparatus including the same |
01/04/2012 | EP2403098A2 Adaptive inductive power supply with communication |
01/04/2012 | EP2403097A2 Adaptive inductive power supply with communication |
01/04/2012 | EP2403094A2 Electronic control system for controlling the power consumption of multiple consumers of electricity |
01/04/2012 | EP2403093A2 Method and apparatus for control battery and specification determining method of battery |
01/04/2012 | EP2402828A2 PLC function block for automated demand response integration |
01/04/2012 | EP2401797A1 Methods and apparatus for energy demand management |
01/04/2012 | EP1236212B1 Capacitor bank switching |
01/04/2012 | CN202103603U Urban open water channel parking lot photovoltaic power generation device |
01/04/2012 | CN202103438U Inverting power generation control protection system of dispersive type synchronization power grid in residential area |
01/04/2012 | CN202103437U Anti-inverted power transmission device for photovoltaic power station grid-connected operation |
01/04/2012 | CN202103436U Photovoltaic grid-connected inverter system based on embedded human-computer interface |
01/04/2012 | CN202103435U Rail traffic system energy storage regeneration device based on flywheel technology |
01/04/2012 | CN202103434U DVR based on super capacitor |
01/04/2012 | CN202103433U Mining low voltage reactive power compensator based on digital processing chip DSP |
01/04/2012 | CN202103432U Internal assembling structure for active filter |
01/04/2012 | CN202103431U MCR (Magnetically Controlled Reactor)-type static var compensator (SVC) |
01/04/2012 | CN202103430U High voltage wattless automatic compensation arrangement |
01/04/2012 | CN202103429U Electric energy adjusting system and electric energy regulators based on loads of shared bus of transformer station |
01/04/2012 | CN202103428U High voltage reactive power concentrated compensation device |
01/04/2012 | CN202103427U Static state filtering reactive compensation cabinet |
01/04/2012 | CN202103426U Reactive compensation device based on switching of grouping reactor |
01/04/2012 | CN202103425U Energy-efficient oil pumping unit control device |
01/04/2012 | CN202103424U Alternating-current chopped-wave electronic voltage regulator |
01/04/2012 | CN202103423U Intelligent active power filter in power distribution network |
01/04/2012 | CN202103422U Active electric energy quality control device based on series-parallel assembly structure |
01/04/2012 | CN202103421U Control device based on parallel running of plurality of active power filter |
01/04/2012 | CN202103420U Safety movable power source chamber |
01/04/2012 | CN202103406U Protection and dynamic reactive compensation control device of reactor |
01/04/2012 | CN202103327U Laminated bus connecting structure |
01/04/2012 | CN102308465A Power supply system |
01/04/2012 | CN102308452A Method and apparatus for controlling a hybrid power system |
01/04/2012 | CN102308451A Integrated voltage and var optimization process for a distribution system |
01/04/2012 | CN102307020A Phase shift soft switch high frequency isolation photovoltaic grid-connected inverter |
01/04/2012 | CN102306938A Starting method for current transformer |
01/04/2012 | CN102306937A Heat accumulation large scale electric power storage system |
01/04/2012 | CN102306936A Magnetron reactor capable of adjusting starting point |
01/04/2012 | CN102306935A Dynamic power flow control device with wave trap and control method for controllable transformer |
01/04/2012 | CN102305891A On-line monitoring method of low-frequency oscillation of power system |
01/04/2012 | CN101699694B Three-phase three-wire dynamic split-phase reactive power compensation device and control method thereof |
01/04/2012 | CN101388550B Intelligent building electricity saving and distributing apparatus |
01/03/2012 | US8090479 Electricity market-oriented DC-segmentation design and optimal scheduling for electrical power transmission |
01/03/2012 | US8089785 Power conditioning unit |
01/03/2012 | US8089176 Communication system and communication apparatus |
01/03/2012 | CA2377849C High power rotary transformer with bus duct assembly |
12/29/2011 | WO2011162578A2 Network system |
12/29/2011 | WO2011162238A1 Control system for alternative energy power station group, and control method for same |
12/29/2011 | WO2011162025A1 Dc power distribution system |
12/29/2011 | WO2011161758A1 Power supplying system |
12/29/2011 | WO2011161552A2 Control unit for brushless motor in a power tool |
12/29/2011 | WO2011160678A1 Cascaded multilevelconverter for hvdc application |
12/29/2011 | WO2011160643A2 A wind turbine and a method of operating a wind turbine |
12/29/2011 | WO2011133252A3 Current balancing multiphase power converters, controllers and mehtods |
12/29/2011 | WO2011128438A3 Method for inputting power and power input system |
12/29/2011 | US20110316342 Solar power generation system and method |
12/29/2011 | US20110316341 System, socket and plug apparatus for DC power distribution and usage |
12/29/2011 | US20110316340 Power generating system |
12/29/2011 | DE202011101013U1 Generatoren-Bedarfs-Regelschaltung. Generators Need regulator circuit. |
12/28/2011 | EP2400655A2 Power conversion system and method for a rotary power generation system |