ClassID:

218328

H02P9/302 - CPC Classification

Classification description:

Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices using semiconductor devices Brushless excitation

Recent Application in this class:
#1
20240313593
2024-09-19

IMPROVED BRUSHLESS ALTERNATOR

#2
20240141827
2024-05-02

DUAL AXIS ALTERNATOR

#3
20220170416
2022-06-02

Dual axis alternator

#4
20220131489
2022-04-28

Control method of brushless DC motor system based on hybrid energy storage unit

#5
20210344274
2021-11-04

Electric machine control

#6
20210273590
2021-09-02

Method Of Performing Fast De-Excitation Of A Brushless Synchronous Machine

#7
20210249940
2021-08-12

DIRECT CURRENT POWER SUPPLY EXCITER MANAGEMENT

#8
20200007057
2020-01-02

Shorted rotating diode protection for synchronous machines

#9
20190363655
2019-11-28

Dynamic generator voltage control for high power drilling and logging-while-drilling

#10
20190348936
2019-11-14

Rotating direct current power supply for synchronous machines

#11
20190245466
2019-08-08

Brushless synchronous power generation apparatus

#12
20190219020
2019-07-18

System and method for operating an independent speed variable frequency generator as a starter

#13
20190211746
2019-07-11

Dual axis alternator

#14
20190190418
2019-06-20

Printed circuit board based exciter

#15
20190173404
2019-06-06

CONTROL OF HYBRID PERMANENT MAGNET MACHINE WITH ROTATING POWER CONVERTER AND ENERGY SOURCE

#16
20190158002
2019-05-23

Independent speed variable frequency alternating current generator

#17
20190052204
2019-02-14

Shorted rotating diode protection for synchronous machines

#18
20190016357
2019-01-17

System and method for locomotive diagnostics

#19
20180287533
2018-10-04

Dynamic generator voltage control for high power drilling and logging-while-drilling

#20
20180269752
2018-09-20

Sensorless control of a DC synchronous machine

#21
20180198395
2018-07-12

Double stator permanent magnet machine with magnetic flux regulation

#22
20180131303
2018-05-10

Automatic voltage regulator, automatic voltage regulating method, generator excitation system, and power generation system

#23
20180131302
2018-05-10

Printed circuit board based exciter

#24
20180131301
2018-05-10

Alternator controller

#25
20180034396
2018-02-01

Systems and methods concerning exciterless synchronous machines

#26
20180034395
2018-02-01

Aircraft starting and generating system

#27
20180030944
2018-02-01

Integrated brushless starter generator

#28
20180026568
2018-01-25

Aircraft starting and generating system

#29
20170331402
2017-11-16

SYSTEM AND METHOD FOR VEHICLE DIAGNOSTICS

#30
20170310260
2017-10-26

Controller for a separately excited electric generator in a vehicle electrical system of a motor vehicle

#31
20170237373
2017-08-17

Power generation system

#32
20170194887
2017-07-06

Excitation device of AC exciter

#33
20170163192
2017-06-08

Supplying a synchronous machine with an excitation current

#34
20170136845
2017-05-18

BUS AIR-CONDITIONING ARRANGEMENT, AND METHOD FOR PRODUCING SAME

#35
20170126158
2017-05-04

Doubly stator-fed synchronous generator

#36
20170070126
2017-03-09

Rotor for a synchronous machine

#37
20160373038
2016-12-22

High voltage direct current system with improved generator excitation

#38
20160365814
2016-12-15

VARIABLE SPEED AC GENERATOR SYSTEM INCLUDING INDEPENDENTLY CONTROLLED ROTOR FIELD

#39
20160359400
2016-12-08

Dual axis alternator

#40
20160308423
2016-10-20

Sensorless control of a DC synchronous machine

#41
20160301345
2016-10-13

Alternator controller

#42
20160268942
2016-09-15

Control of Hybrid Permanent Magnet Machine With Rotating Power Converter and Energy Source

#43
20160211787
2016-07-21

Systems and methods concerning exciterless synchronous machines

#44
20160141989
2016-05-19

Two stage flux switching machine for an electrical power generation system

#45
20160105136
2016-04-14

Method and a generator system for operating a generator

#46
20160046247
2016-02-18

Electric system architecture for more-electric engine accessories

#47
20150349696
2015-12-03

Main field voltage limiter in brushless synchronous machines

#48
20150333679
2015-11-19

Wound field synchronous machine with resonant field exciter

#49
20150263658
2015-09-17

Brushless permanent magnet generator plus auxiliary voltage source constant potential exciter

#50
20150188470
2015-07-02

System and method for monitoring a rapid de-excitation system for synchronous machines

#51
20150115762
2015-04-30

Rotating transformers for electrical machines

#52
20150002106
2015-01-01

Generator excitation apparatus and power conversion system

#53
20140361610
2014-12-11

Voltage regulator, operation method thereof, voltage regulating system, and mobile vehicle

#54
20140285053
2014-09-25

Flux controlled PM electric machine rotor

#55
20140266080
2014-09-18

Rotating electrical machine

#56
20140266078
2014-09-18

Generator architecture with main field rotating power converter

#57
20140265693
2014-09-18

Permanent magnet machine for integrated starter generator

#58
20140253053
2014-09-11

Resonant commutation system for exciting a three-phase alternator

#59
20140225575
2014-08-14

Method for regulating a generator set

#60
20140203788
2014-07-24

Method for regulating a generator set

#61
20140001841
2014-01-02

Control device for generator-motor and control method for generator-motor

#62
20130234678
2013-09-12

ALTERNATOR RIPPLE VOLTAGE REDUCTION USING OUTPUT FEEDBACK TO AN INDEPENDENT FIELD COIL

#63
20130193903
2013-08-01

Synchronous machine with switching element in the excitation circuit

#64
20130176648
2013-07-11

Pole-slip protection system and method for synchronous machines

#65
20130099493
2013-04-25

Control apparatus for motor-generator

#66
20130076316
2013-03-28

METHOD AND ARRANGEMENT IN CONNECTION WITH A CASCADE-FED ASYNCHRONOUS GENERATOR

#67
20130063066
2013-03-14

Method and system for detecting faults in a brushless exciter

#68
20130033038
2013-02-07

Starting/generating system with multi-functional circuit breaker

#69
20120268082
2012-10-25

Control device and method for controlling a separately excited rotor winding of a synchronous machine

#70
20120242296
2012-09-27

System and method for generator phase signal monitoring and control

#71
20120187923
2012-07-26

Method and assembly for the turning gear operation of a turbo set

#72
20120182648
2012-07-19

Overvoltage limiter in an aircraft electrical power generation system

#73
20120153904
2012-06-21

Resonant commutation system for exciting a three-phase alternator

#74
20120056601
2012-03-08

Rotor based air gap heating for air driven turbine

#75
20120007428
2012-01-12

Electric power generating system with boost converter/synchronous active filter

#76
20110298430
2011-12-08

RAPID DE-EXCITATION SYSTEM FOR SYNCHRONOUS MACHINES WITH INDIRECT EXCITATION

#77
20110133703
2011-06-09

Architecture for dual source electric power generating system

#78
20110121773
2011-05-26

Separately excited electrical synchronous machine, and method for operating a synchronous machine

#79
20110115444
2011-05-19

Electric load damper for damping torsional oscillation

#80
20110050184
2011-03-03

Active rectification for a variable-frequency synchronous generator

#81
20110050183
2011-03-03

Static exciter of a field winding and method for operating the same

#82
20110018504
2011-01-27

System and method for generator phase signal monitoring and control

#83
20100308582
2010-12-09

Starting/generating system with multi-functional circuit breaker

#84
20100219786
2010-09-02

Method and apparatus for determining a field current in brushless electrical machines

#85
20100109324
2010-05-06

System and method for generating an alternating current output signal

#86
20100039077
2010-02-18

Load angle measurement and pole slip detection

#87
20100039073
2010-02-18

Adaptive field control of a variable frequency synchronous generator

#88
20090296777
2009-12-03

METHOD AND APPARATUS FOR DETECTING A FAULT IN A BRUSHLESS EXCITER FOR A GENERATOR

#89
20090267353
2009-10-29

Capacitor-compensation-type generator

#90
20090174188
2009-07-09

Aircraft engine starter/generator and controller

#91
20090167257
2009-07-02

Shorted rotating diode detection and protection

#92
20090153105
2009-06-18

Alternator

#93
20090051219
2009-02-26

Integrated electrical power extraction for aircraft engines

#94
20090008993
2009-01-08

Hybrid electromechanical power transfer system

#95
20080303280
2008-12-11

Engine start system with quadrature AC excitation

#96
20080265697
2008-10-30

Electrical Machine, in Particular Rotary Current Generator

#97
20080258672
2008-10-23

Method of starting a synchronous motor with a brushless DC exciter

#98
20080238202
2008-10-02

Integrated electrical power extraction for aircraft engines

#99
20080150494
2008-06-26

Pole shifting generator

#100
20080061747
2008-03-13

System and method for DC power generation from a reluctance machine

#101
20080024941
2008-01-31

Method and apparatus for operating electrical machines

#102
20070268005
2007-11-22

System and method for AC power generation from a reluctance machine

#103
20070222220
2007-09-27

Aircraft engine starter/generator and controller

#104
20070176579
2007-08-02

Active rectification of alternator output without using a position sensor

#105
20070159140
2007-07-12

Brushless exciters using a high temperature superconducting field winding

#106
20070102936
2007-05-10

System and method for AC power generation from a reluctance machine

#107
20070102935
2007-05-10

System and method for DC power generation from a reluctance machine

#108
20060214427
2006-09-28

Hybrid gas turbine engine starter-generator

#109
20060181251
2006-08-17

Energy discharge apparatus

#110
20060181250
2006-08-17

Energy discharge apparatus

#111
20060181249
2006-08-17

Energy discharge apparatus

#112
20060038405
2006-02-23

Hybrid gas turbine engine starter-generator

#113
20050216225
2005-09-29

Adaptive position sensing method and apparatus for synchronous motor generator system

#114
20050180862
2005-08-18

Fixed frequency electrical generation system and corresponding control procedure