| Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663) |
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| 05/10/2007 | US20070103124 System and method for controlling the drive strength of output drivers in integrated circuit devices |
| 05/10/2007 | US20070103108 Power converter for a solar panel |
| 05/10/2007 | US20070103003 Circuit apparatus and fabrication method for circuit apparatus |
| 05/10/2007 | US20070102423 Complex home appliance and method of controlling and installing the same |
| 05/10/2007 | DE102005052010A1 Wind turbine operating method for use in wind farm, involves automatically connecting electrical generator with network connection points when voltage is provided within main voltage band and preset voltage threshold value is exceeded |
| 05/09/2007 | EP1783499A1 Method and apparatus for verifying the accuracy of state estimation calculations |
| 05/09/2007 | EP1782519A1 Transformers |
| 05/09/2007 | EP1782518A1 Electrical power distribution system and method with active load control |
| 05/09/2007 | EP1782517A1 Device for the safe isolation of a nuclear power plant from a supply mains during a mains failure |
| 05/09/2007 | CN2899236Y Unified current controller with short-circuit current-limiting function |
| 05/09/2007 | CN2899235Y Overzero trigger of thyristor |
| 05/09/2007 | CN2899234Y Synchronous still series compensator with short-circuit current-limiting function |
| 05/09/2007 | CN2899233Y Non-power compensated energy saver |
| 05/09/2007 | CN2899232Y Loss-descending loading economical phase adjuster |
| 05/09/2007 | CN2899231Y Electric saver |
| 05/09/2007 | CN1960109A Static synchronous compensator device for electric power distribution of using transformer structure in multiple segmentations and multiple coils |
| 05/09/2007 | CN1960108A Active mode adjustment device for AC load characteristic |
| 05/09/2007 | CN1315238C A three-phase low pass filter connected with power network |
| 05/08/2007 | US7216246 Electronic apparatus and supply power setting method for the apparatus |
| 05/08/2007 | US7216043 Push communications architecture for intelligent electronic devices |
| 05/08/2007 | US7216021 Method, system and computer program for managing energy consumption |
| 05/08/2007 | US7215098 Electrical generating system having capacitative control of alternator regulation |
| 05/03/2007 | WO2007048420A1 Inverter |
| 05/03/2007 | US20070100506 System and method for controlling power flow of electric power generation system |
| 05/03/2007 | US20070100503 Multi-tier benefit optimization for operating the power systems including renewable and traditional generation, energy storage, and controllable loads |
| 05/03/2007 | US20070096564 System and method for efficient power utilization and extension of battery life |
| 05/03/2007 | US20070096562 Smart power supply |
| 05/03/2007 | US20070096471 Active anti-islanding system and method |
| 05/03/2007 | DE102005052013A1 Wind energy plant operating method for generation of electrical current, involves separating generator from network during falling of nominal voltage under given threshold value and outflow of reactive power |
| 05/03/2007 | DE102005052011A1 Wind energy plant operating method, involves dynamically changing electrical active power during exceeding main frequency threshold value by specific hertz depending on current main frequency in accordance with specific relationship |
| 05/02/2007 | EP1780861A2 Detection of islanding in power grids |
| 05/02/2007 | EP1780860A1 System and method for controlling power flow of electric power generation system |
| 05/02/2007 | EP1780859A1 Energy supply method and system |
| 05/02/2007 | EP1780619A1 Initializing an estimation of dynamic model parameters |
| 05/02/2007 | EP1779488A1 Network filter |
| 05/02/2007 | CN2896644Y Inverter parallel connection device |
| 05/02/2007 | CN2896643Y 谐波滤波器 Harmonic Filter |
| 05/02/2007 | CN2896642Y Electric-power wire filter |
| 05/02/2007 | CN2896641Y Multifunction electricity economizer |
| 05/02/2007 | CN2896468Y Staged loaded pressure-regulation switch |
| 05/02/2007 | CN1956286A Detection of islanding in power grids |
| 05/02/2007 | CN1314180C Inverter parallel connection system and its control method |
| 05/01/2007 | CA2400572C Dual-input, automatic-switching power supply |
| 04/26/2007 | WO2007046866A1 Method and apparatus for power management control of the cooling system of a refrigerating appliance |
| 04/26/2007 | US20070094043 Energy service business method and system |
| 04/26/2007 | US20070090693 Pulsed power supply with current ripple reduction |
| 04/26/2007 | US20070090651 Method for operating a wind park |
| 04/26/2007 | CA2563479A1 Detection of islanding in power grids |
| 04/25/2007 | EP1777793A2 System interconnection system |
| 04/25/2007 | CN2894084Y Energy-saving and anti-unauthorizedly using electricity integrated draging device for pumping unit |
| 04/25/2007 | CN2894027Y Dynamic capacitance compensating device |
| 04/25/2007 | CN2894026Y Three-phase stable voltage regulating apparatus compensating coil inductive voltage lowering and contact arc extinguishing structure |
| 04/25/2007 | CN2894025Y Intelligent power control electricity-saving device |
| 04/25/2007 | CN2894011Y High pressure energy-saving antistealing electricity integrated drawing device for kitchen fumes exhauster |
| 04/25/2007 | CN1954484A Solar inverter and photovoltaic installation comprising several solar inverters |
| 04/25/2007 | CN1312820C Parallel single-phase DC-to-AC converter systems |
| 04/25/2007 | CN1312819C Phase-sequence adaptive symmetrical components reactive power compensation device |
| 04/24/2007 | US7209839 Real time power flow method for distribution system |
| 04/19/2007 | WO2007041788A1 A load switching arrangement |
| 04/19/2007 | WO2006068495A3 Device for reducing harmonics |
| 04/19/2007 | US20070087722 Power supply apparatus and power line communication apparatus |
| 04/19/2007 | US20070087231 Method and apparatus for multiple mode control of voltage from a fuel cell system |
| 04/19/2007 | US20070086221 Power converter methods and apparatus for variable speed high power machines |
| 04/19/2007 | US20070085675 Powered Device with Priority Indicator |
| 04/19/2007 | US20070085421 Electrical installation for coupling a power supply system and a central direct current branch and method for operating an installation of this type |
| 04/19/2007 | US20070085344 Method for operating a frequency converter of a generator |
| 04/19/2007 | US20070085343 Method for operating or controlling a wind turbine and method for providing primary control power by means of wind turbines |
| 04/19/2007 | US20070084942 Domestic heat and power system |
| 04/19/2007 | DE102005047901A1 Apparatus for identifying users in an electrical network i.e. electricity consumers based on a generated model |
| 04/18/2007 | EP1775819A2 Method of operating a wind energy plant |
| 04/18/2007 | EP1774636A1 Apparatus and method for inductive power transfer |
| 04/18/2007 | EP1774420A2 Power flow controller responsive to power circulation demand for optimizing power transfer |
| 04/18/2007 | EP1774163A2 Connecting a prime mover driven alternator to a circuit with an existing alternating current |
| 04/18/2007 | CN2891473Y Photoelectric current transformer with offline/online, charging control and power regulation functions |
| 04/18/2007 | CN2891442Y Portable charger for electric automobile |
| 04/18/2007 | CN2891440Y Self-adapting controllable dynamic reactive power factor compensator |
| 04/18/2007 | CN2891439Y Carrier filter circuit for active power filter |
| 04/18/2007 | CN2891438Y Active power filter |
| 04/18/2007 | CN2891437Y Distribution connection structure for electric fire hazard alarm in building |
| 04/18/2007 | CN2891436Y Super long range power transmission device |
| 04/18/2007 | CN2891035Y Intelligent reactive compensating device |
| 04/18/2007 | CN1950983A Power supply device |
| 04/18/2007 | CN1949944A Intelligent illuminating remote-monitoring electricity saver and energy saving controlling method |
| 04/17/2007 | US7206670 Energy management system for controlling energy supplied to a set of customer buildings |
| 04/17/2007 | US7205681 Generation and distribution of a dual-redundant logic supply voltage for an electrical system |
| 04/17/2007 | CA2362163C Ferroresonance-suppressing static transfer switch |
| 04/12/2007 | WO2007001416A3 Power generation system incorporating a vanadium redox battery and a direct current wind turbine generator |
| 04/12/2007 | WO2006138592A3 Fast acting distributed power system for trasmission and distribution system load using energy storage units |
| 04/12/2007 | US20070081369 Pwm cycloconverter |
| 04/12/2007 | DE102006042754A1 Synchronous machine e.g. generator, starting device for synchronous compensator, has transformer formed between change-over switch and output of device so that output voltage equal to rated voltage of machine is produced |
| 04/12/2007 | DE102005026062A1 Virtual rotary mass for use in railroad network, has self-commutated pulse width modulated inverter, which is operated by electronic circuit or software, where inverter supplies power from power station to three-phase power system |
| 04/12/2007 | DE102004052700B4 Mehrphasen-Netzfilter Polyphase line filter |
| 04/11/2007 | EP1772939A2 Methods and apparatus for coupling an energy storage system to a variable energy supply system |
| 04/11/2007 | EP1772938A2 Reconfigurable power distribution network |
| 04/11/2007 | CN2888744Y An electricity-saving device for soft start with harmonic suppression and random reactive compensation |
| 04/11/2007 | CN2888715Y Novel TSVG dynamic reactive compensation generated electric source |
| 04/11/2007 | CN2888714Y Large capacity long-distance power transmission system based on electromagnetic wave impedance |
| 04/11/2007 | CN1945961A AC exciting control system of double feed wind power generator based on DSP with secondary frequency modulation and its working method |
| 04/11/2007 | CN1945952A Integrated double junction non-crystal silicon solar energy battery curtain wall and its producing method and use |
| 04/11/2007 | CN1945920A Method for operation of a converter system |