Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663) |
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01/28/1998 | CN1171863A Transmission line power flow controller with unequal advancement and retardation of transmission angle |
01/27/1998 | US5712572 Insulation state measurement method, insulation state judgement apparatus, and dispersion type power generating system using the same |
01/22/1998 | WO1998003023A1 Processing data signals |
01/22/1998 | WO1997045926A3 An electric high voltage ac machine |
01/22/1998 | WO1997045921A3 Electromagnetic device |
01/21/1998 | EP0820137A2 Apparatus and method for the compensation of reactive current |
01/21/1998 | EP0565681B1 Control of power network |
01/21/1998 | CN2273073Y Auto-controlled compensation type high-efficiency electricity saver for motor |
01/21/1998 | CN2273071Y Reactive compensator for multiplex phase interruption sound and light alarm and automatic power cut-off arrangement |
01/21/1998 | CN1171088A Reserve power system |
01/21/1998 | CN1170984A Passive power factor compensator |
01/20/1998 | US5710691 For protecting an appliance receiving power from a household power socket |
01/20/1998 | US5710492 Apparatus for monitoring and stabilizing power swing in a power system by utilizing a power electronics technique |
01/15/1998 | WO1997045907A3 Rotating electrical machine plants |
01/14/1998 | CN2272626Y High voleage line reactive compensation automatic switch device |
01/14/1998 | CN1170262A Power source linkage of system |
01/14/1998 | CN1037052C Power converter with star configured modules |
01/13/1998 | US5708590 Method and apparatus for real time recursive parameter energy management system |
01/08/1998 | DE19620906A1 Windenergiepark Wind Energy Park |
01/07/1998 | EP0817362A2 Multiple output, zero voltage switching, series resonant VHF inverter |
01/07/1998 | EP0817350A2 Power-supply system involving system interconnection |
01/07/1998 | CN1169610A Power inverter having three or more parallel driven PWM-type power inverting units |
01/06/1998 | US5706207 Control equipment for electrical power generators |
01/06/1998 | US5706158 Method for short-circuit current limiting on an electrical power transmission line and configuration for short-circuit limiting |
01/02/1998 | DE19648657C1 Arrangement for controlling and monitoring electrical loads |
01/02/1998 | DE19624809A1 Active filter for compensating rapid power fluctuations in three=phase network |
12/31/1997 | WO1997050170A1 Independent load sharing of ac power systems connected in parallel |
12/31/1997 | WO1997050169A1 Wireless selective tripping of ac power systems connected in parallel |
12/31/1997 | CN1169050A Stable ac network able for anti reactive load undulation, and reactive power compensating device |
12/30/1997 | US5703791 Electric power system stabilization control apparatus and method thereof |
12/30/1997 | CA2158374C Method and closed-loop control arrangements for the transmission of direct current |
12/30/1997 | CA2126392C Combined phase-shifting directional zero phase sequence current filter |
12/30/1997 | CA2110724C Vernier control system for subsynchronous resonance mitigation |
12/24/1997 | WO1997049168A1 Power line harmonic reduction by hybrid parallel active/passive filter system with square wave inverter and dc bus control |
12/24/1997 | WO1997049167A1 Filter equipment |
12/24/1997 | WO1997049157A1 Method and device for compensation of reactive power |
12/23/1997 | US5701241 Recovery of transmitted power in an installation for transmission of high-voltage direct current |
12/23/1997 | US5701239 High-voltage direct current transmission installation having a high voltage regulation capability |
12/23/1997 | US5699666 Steam generating power station, process for operating the same, and interlinking network and process for its operation. |
12/18/1997 | WO1997048174A1 A method and an apparatus for filtering an electric current supplied to a motor |
12/18/1997 | WO1997048161A1 Real-time pricing control system and methods regarding same |
12/18/1997 | CA2257886A1 Real-time pricing control system and methods regarding same |
12/17/1997 | EP0813292A2 Power inverter having three or more parallel driven PWM-type power inverting units |
12/17/1997 | EP0813284A2 Process for stabilizing of an AC network against reactive power fluctuations and reactive power compensating apparatus |
12/17/1997 | EP0671066B1 Apparatus and method for charging electric vehicles |
12/17/1997 | CN1168016A System networking electric generator |
12/16/1997 | US5698969 Apparatus and method for interline power flow control |
12/10/1997 | CN1167289A Voltage reactive comprehensive controller by microcomputer |
12/09/1997 | US5696695 System for rate-related control of electrical loads |
12/04/1997 | WO1997045926A2 An electric high voltage ac machine |
12/04/1997 | WO1997045921A2 Electromagnetic device |
12/04/1997 | WO1997045909A1 Photovoltaic to grid interconnection |
12/04/1997 | WO1997045908A1 Wind power site |
12/04/1997 | WO1997045907A2 Rotating electrical machine plants |
12/04/1997 | WO1997045906A1 Reduction of harmonics in ac machines |
12/04/1997 | WO1997045905A1 An installation for power transmission by means of high-voltage direct current, comprising device for detection of a permanent ground fault |
12/04/1997 | WO1997045848A1 A dc transformer/reactor |
12/04/1997 | WO1997045847A1 Transformer/reactor |
12/04/1997 | DE19621333A1 Method and equipment for controlling domestic AC loads |
12/04/1997 | CA2256535A1 Rotating electrical machine plants |
12/04/1997 | CA2256469A1 Transformer/reactor |
12/04/1997 | CA2256347A1 Electromagnetic device |
12/04/1997 | CA2255742A1 A dc transformer/reactor |
12/04/1997 | CA2255739A1 An electric high voltage ac machine |
12/03/1997 | EP0810713A2 Apparatus and method for detecting an inverter islanding operation |
12/03/1997 | EP0810711A2 Microprocessor control of parallel power supply systems |
12/03/1997 | EP0809879A1 Method and device for filtering and damping conducted interference caused by ultimate consumers |
12/03/1997 | EP0809876A2 Series-compensated converter station |
12/03/1997 | CN2269652Y Power socket for absorbing peak pulse |
12/03/1997 | CN1166911A System and method for optimizing energy efficiency of building system for target energy consumption level |
12/02/1997 | US5694309 Synchronization of power converter arrays |
12/02/1997 | US5694306 Method and device for control of a series-compensated converter station |
12/02/1997 | US5693988 Filtering device |
11/27/1997 | DE19620586A1 Uninterrupted current supply (UCS) system on board ship with two electrical plants |
11/26/1997 | CN2269020Y Electric power monitor |
11/26/1997 | CN1166242A Interconnection system for transmitting power between electrical systems |
11/26/1997 | CN1166080A Switched-mode power supply having standby mode |
11/26/1997 | CN1166078A Output voltage compensating circuit |
11/25/1997 | US5692158 Methods for generating models of non-linear systems and components and for evaluating parameters in relation to such non-linear models |
11/25/1997 | US5691626 Active damping control for active power filter |
11/25/1997 | US5691577 Reflector-pump network for preempting AC power supply harmonic distortion and for satiating the complex harmonic power demand of a rectifier |
11/20/1997 | WO1997043811A1 Method for on-line dynamic contingency screening of electric power systems |
11/19/1997 | EP0808012A1 Method for managing the tariff of electrical power in a network of a room |
11/19/1997 | EP0807329A1 Dynamic power and voltage regulator for an ac transmission line |
11/19/1997 | CN2268340Y Electricity-saving starting compensator for ac. asynchronous motor |
11/13/1997 | DE19618874A1 Relaying, distributing and storing of energy |
11/13/1997 | DE19617915A1 Power distribution arrangement esp for powering loads in aircraft |
11/13/1997 | DE19612744C1 Transformatoranordnung Transformer assembly |
11/12/1997 | EP0806314A1 Hybrid power system with clutches for drive mode control |
11/12/1997 | EP0689689A4 Energy saving power control system |
11/11/1997 | US5687139 Electrical load optimization device |
11/11/1997 | US5687071 Voltage lowering device and asynchronous traction system supplied from a single-phase mains supply incorporating a device of this kind |
11/11/1997 | US5686767 Apportioning minimal standby power |
11/11/1997 | US5686766 Utility-linking system |
11/06/1997 | DE19654830A1 Electric power converter control appts |
11/05/1997 | EP0805547A2 Reflector-pump network for preempting AC power supply harmonic distortion and for satiating the complex harmonic power demand of a rectifier |
11/04/1997 | US5684710 System for measuring electrical power interruptions |
11/04/1997 | US5684389 Switch-off method for a three-phase reactive power compensator with two thyristor switches |
11/04/1997 | US5684379 Device and procedure for recharging electric vehicles |
10/29/1997 | EP0803146A1 Structure and method for performing active injection mode filtering on an ac power system |