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Class Information
Number: 322/29
Name: Electricity: single generator systems > Automatic control of generator or driving means > Speed or frequency of generator
Description: Subject matter wherein the automatic control of the generator is in response to the speed or frequency of the generator.










Sub-classes under this class:

Class Number Class Name Patents
322/30 Centrifugal of fly weight governor 5
322/32 Frequency responsive devices or networks 126
322/31 Tachometer devices 13


Patents under this class:
1 2 3 4 5 6 7 8

Patent Number Title Of Patent Date Issued
8624543 Switching strategy for switched reluctance machine Jan. 7, 2014
8564255 Vehicle-use electric rotating machine Oct. 22, 2013
8476871 Method and system for controlling a doubly-fed induction machine Jul. 2, 2013
8471407 Spring-powered emergency electrical supply Jun. 25, 2013
8432051 Electric generator Apr. 30, 2013
RE44084 Control system for stand-by electrical generator Mar. 19, 2013
8395360 Direct power and stator flux vector control of a generator for wind energy conversion system Mar. 12, 2013
8378643 Wind turbine generator, control method for wind turbine generator, wind turbine generator system, and control method for wind turbine generator system Feb. 19, 2013
8330431 Method for smoothing alternating electric current from a number of power generating units and wind power plant including a number of wind mills with variable rotational speed Dec. 11, 2012
8305021 Dual purpose permanent magnet speed sensor and generator Nov. 6, 2012
8294429 Robust digital voltage regulator Oct. 23, 2012
8294430 Double-fed asynchronous generator and method for its operation Oct. 23, 2012
8203317 Control parameter adaptation dependent on rotational speed Jun. 19, 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
8164296 Method and apparatus for determining a field current in brushless electrical machines Apr. 24, 2012
8138729 Generation control apparatus for vehicles that controls current supply to a field winding of a generator to control output voltage of the generator Mar. 20, 2012
8140205 Driving system for hybrid vehicle Mar. 20, 2012
8134344 Regulation control for variable frequency generators Mar. 13, 2012
8111502 Arrangement adapted for a subsea application Feb. 7, 2012
8111048 Double fed synchronous generator motor Feb. 7, 2012
8080950 Induction motor torque control in a pumping system Dec. 20, 2011
8013578 Alternator Sep. 6, 2011
8004252 Power system stabilizer and method Aug. 23, 2011
7990113 Method for smoothing alternating electric current from a number of power generating units and wind power plant including a number of wind mills with variable rotational speed Aug. 2, 2011
7977910 Method of starting a synchronous motor with a brushless DC exciter Jul. 12, 2011
7964980 Wind turbine generator system Jun. 21, 2011
7960849 Method and system of control of the converter of an electricity generation facility connected to an electricity network in the presence of voltage sags in said network Jun. 14, 2011
7952331 Self-excited controlled frequency generator system with bi-directional converter May. 31, 2011
7932618 Miniature hydro-power generation system power management Apr. 26, 2011
7915868 Method of synchronizing a turbomachine generator to an electric grid Mar. 29, 2011
7875991 Method of operating a wind power installation and a wind power installation Jan. 25, 2011
7830029 Method for operating a wind park Nov. 9, 2010
7830030 Method for operating a wind energy system Nov. 9, 2010
7825641 Method and apparatus for regulating excitation of an alternator Nov. 2, 2010
7812574 Power control system and method Oct. 12, 2010
7808215 Active damping for synchronous generator torsional oscillations Oct. 5, 2010
7808119 Power control system and method Oct. 5, 2010
7804279 Power control system and method Sep. 28, 2010
7786608 Protection system for wind turbine Aug. 31, 2010
7772808 Voltage regulating system and voltage regulator Aug. 10, 2010
7764051 Alternating voltage generation apparatus and power output apparatus Jul. 27, 2010
7733066 Power generation apparatus using AC energization synchronous generator and method of controlling the same Jun. 8, 2010
7728561 Apparatus for controlling power generation for vehicle Jun. 1, 2010
7705568 Power-generator control apparatus for addressing occurrence of voltage transient Apr. 27, 2010
7692413 Power control system and method Apr. 6, 2010
7671570 Systems and methods involving operating variable speed generators Mar. 2, 2010
7646178 Broad-speed-range generator Jan. 12, 2010
7629776 Control and power module for a rotating electrical machine Dec. 8, 2009
7615972 System and method for electric current and power monitoring and control of a generator Nov. 10, 2009
7576443 Method and apparatus for generating electric power Aug. 18, 2009

1 2 3 4 5 6 7 8










 
 
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