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Class Information
Number: 322/58
Name: Electricity: single generator systems > Generator control > With means for suppressing, eliminating or minimizing undesired frequencies
Description: Subject matter wherein the system includes means for suppressing, eliminating or minimizing undesired frequencies.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8653683 Device for controlling a double-fed asynchronous machine Feb. 18, 2014
8593006 Wind turbine braking device and method of use damping drivetrain oscillation Nov. 26, 2013
8476779 Method of reducing torsional oscillations in the power train of a wind turbine Jul. 2, 2013
8452462 System stabilizing device May. 28, 2013
8427117 Electromechanical arrangement Apr. 23, 2013
8305049 Starter voltage reducing synchronous machine Nov. 6, 2012
8169197 Device for damping control of mechanical torsional oscillations of an electrical alternating current generator of multi-phase power supply system May. 1, 2012
8125196 Electrical power arrangement Feb. 28, 2012
8118627 Propulsion arrangement Feb. 21, 2012
8106540 Compensation system for power transmission Jan. 31, 2012
8004252 Power system stabilizer and method Aug. 23, 2011
7939956 Torsional protection system and method for wind turbine May. 10, 2011
7518344 Method and damping device for damping a torsional vibration in a rotating drivetrain Apr. 14, 2009
7400117 Generating system with a regulated permanent magnet machine and an active rectifier Jul. 15, 2008
7239113 Method for reducing undesired currents in an electrical power generation system Jul. 3, 2007
6876098 Methods of operating a series hybrid vehicle Apr. 5, 2005
6819087 Distributed resource (DR) stabilization control for microgrid applications Nov. 16, 2004
6700357 Electromagnetic wave noise entry inhibiting connector for vehicular AC generator control device Mar. 2, 2004
6675301 Microcomputer malfunction preventive apparatus and microcomputer malfunction preventive method Jan. 6, 2004
6576416 Analyte measurement device and method of use Jun. 10, 2003
6563228 Power plant with a gas turbine and method of operating it May. 13, 2003
6285168 Reactive droop compensation system and method Sep. 4, 2001
6215271 Charging system having a controlled rectifier bridge and a single voltage sensor Apr. 10, 2001
6150731 Integrated high frequency marine power distribution arrangement with transformerless high voltage variable speed drive Nov. 21, 2000
6130523 Generator transfer function regulator Oct. 10, 2000
6057672 Control signal processor and power system stabilizer using the same May. 2, 2000
5929613 Regulator for an alternator of a vehicle Jul. 27, 1999
5808449 Method and apparatus for detecting islanding operation of dispersed generator Sep. 15, 1998
5760486 Charge control system for use in internal combustion engine Jun. 2, 1998
5703791 Electric power system stabilization control apparatus and method thereof Dec. 30, 1997
5698968 Power system stabilizer for generator Dec. 16, 1997
5625277 Dynamic mechanically switched damping system and method for damping power oscillations using the same Apr. 29, 1997
5604420 Stabilizer for power system Feb. 18, 1997
5559421 Apparatus for removing harmonic components of an electric power frequency generated in electric power generation equipment Sep. 24, 1996
5455500 Alternating current generator for vehicles Oct. 3, 1995
5448167 Power system control apparatus for reducing power fluctuations Sep. 5, 1995
5444355 Charging generator for a vehicle Aug. 22, 1995
5389870 Method and apparatus for filtering alternator ripple using synchronous sampling Feb. 14, 1995
5300876 Power system stabilizer estimating a power system impedance Apr. 5, 1994
5274322 Alternating current generator for vehicle Dec. 28, 1993
5245271 Voltage regulator and method Sep. 14, 1993
5227713 Vernier control system for subsynchronous resonance mitigation Jul. 13, 1993
5198745 Dynamic braking resistor system Mar. 30, 1993
5194800 Power supply system Mar. 16, 1993
5097163 Electrical power generating system having reduced conducted emissions in output power Mar. 17, 1992
5087869 Protective circuit in a device for reducing vibrations of a vehicle body Feb. 11, 1992
5043653 Noise filter for zero crossing detector Aug. 27, 1991
5038095 Control for a DC link power conversion system Aug. 6, 1991
5023540 Brushless power generating system having reduced conducted emissions in output power Jun. 11, 1991
4999564 Power system stabilizer system having improved integrity checking scheme Mar. 12, 1991

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