ClassID:

218419

H02P25/022 - CPC Classification

Classification description:

Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor Synchronous motors

Sub-classes:
Recent Application in this class:
#1
20260135508
2026-05-14

ELECTRIC VEHICLE

#2
20260106564
2026-04-16

INTEGRATED CHARGER UNIT WITH INVERTER AND MOTOR

#3
20260066827
2026-03-05

EXTERNALLY EXCITED SYNCHRONOUS MACHINE-BASED ELECTRIC DRIVE INTEGRATING GALVANICALLY ISOLATED AC

#4
20260066826
2026-03-05

INVERTER CONTROL APPARATUS AND SYNCHRONOUS MACHINE DRIVING APPARATUS

#5
20260058582
2026-02-26

MOTOR CONTROL

#6
20250357878
2025-11-20

SYSTEM AND METHOD FOR HIGH EFFICIENCYCLOSED-LOOP STARTUP FOR SENSORLESS MOTOR DRIVE

#7
20250330109
2025-10-23

MONITORING A SYNCHRONOUS MOTOR

#8
20250300584
2025-09-25

Parameter Estimation for a Permanent Magnet Synchronous Motor

#9
20250266781
2025-08-21

DUAL INVERTER SYSTEM

#10
20250253793
2025-08-07

DRIVE DEVICE

#11
20250211145
2025-06-26

METHOD FOR CONTROLLING AN ELECTRIC MOTOR IN THE EVENT OF A SPEED MEASUREMENT ANOMALY

#12
20250202400
2025-06-19

MOTOR ROTATIONAL SPEED CONTROL SYSTEM AND METHOD HAVING DUTY CYCLE VARIABLE MODULATION MECHANISM

#13
20250167713
2025-05-22

METHOD FOR CONTROLLING A DRIVE SYSTEM OF A RAIL VEHICLE

#14
20250158551
2025-05-15

SYSTEMS AND METHODS FOR ENERGY RECOVERY ON DRILLING RIGS

#15
20250105769
2025-03-27

MOTOR DRIVE CONTROL DEVICE AND INITIAL POSITION DETECTION METHOD FOR A ROTER

#16
20250055397
2025-02-13

BRUSHLESS WOUND FIELD SYNCHRONOUS MACHINES

#17
20250023499
2025-01-16

DRIVE UNIT

#18
20240421739
2024-12-19

POWER SUPPLY SYSTEM FOR A BEARING CONTROLLER

#19
20240388234
2024-11-21

AC ROTARY MACHINE CONTROLLER, VEHICLE DRIVING APPARATUS, AND ELECTRIC POWER STEERING APPARATUS

#20
20240372495
2024-11-07

Method and System of Adaptive Current Control for AC Servo Motor

#21
20240364252
2024-10-31

CONTROL APPARATUS FOR ELECTRIC MOTOR

#22
20240356470
2024-10-24

SYNCHRONOUS-MOTOR CONTROL DEVICE AND ELECTRIC VEHICLE

#23
20240348186
2024-10-17

METHOD FOR ESTIMATING ROTOR ANGLE AND ROTOR SPEED OF PERMANENT MAGNET SYNCHRONOUS MOTOR AND ASSOCIATED SYSTEM

#24
20240322726
2024-09-26

ELECTRICAL DRIVE SYSTEM AND METHOD

#25
20240262251
2024-08-08

ELECTRIFIED VEHICLE WITH WOUND ROTOR SYNCHRONOUS ELECTRIC MACHINE CONTROLLED TO HEAT BATTERY

#26
20240235446
2024-07-11

INJECTION MOULDING MACHINE WITH ELECTRIC SWITCHING UNITS AND METHOD FOR SYNCHRONISING THE CURRENTS OF ELECTRIC SWITCHING UNITS

#27
20240195340
2024-06-13

POWER SUPPLY SYSTEM SUPPLYING AN ELECTRICAL LOAD VIA A POLYPHASE VOLTAGE AND AN AUXILIARY NETWORK VIA A HOMOPOLAR COMPONENT OF THE VOLTAGE, AND RELATED ELECTRICAL INSTALLATION

#28
20240154561
2024-05-09

INVERTER CONTROL DEVICE AND PROGRAM

#29
20240136963
2024-04-25

System and Method for Controlling a Permanent Magnet Synchronous Motor to Optimally Track a Reference Torque

#30
20240128897
2024-04-18

POWER TOOL

#31
20240120860
2024-04-11

METHODS FOR IMPROVING RATE OF RISE OF TORQUE IN ELECTRIC MACHINES

#32
20240097595
2024-03-21

POWER CONVERSION DEVICE AND POWER CONVERSION METHOD

#33
20240072701
2024-02-29

Electric motor control device

#34
20240056010
2024-02-15

METHOD AND APPARATUS FOR DETECTING INITIAL POSITION OF ROTOR OF MOTOR

#35
20240056009
2024-02-15

METHOD FOR CONTROLLING OPERATION OF PERMANENT-MAGNET SYNCHRONOUS MOTOR THROUGH SENSORLESS VECTOR CONTROL

#36
20240030851
2024-01-25

Method and Device for Identifying the Anisotrophy of an Electric Three-Phase Machine

#37
20240022194
2024-01-18

Position estimation for permanent magnet synchronous machines via rotor flux space vector identification

#38
20240022192
2024-01-18

AC MOTOR CONTROL DEVICE AND DRIVE SYSTEM EQUIPPED WITH SAME

#39
20230402870
2023-12-14

Rechargeable energy storage system balancing

#40
20230361645
2023-11-09

VOLTAGE OPTIMIZATION TECHNIQUE FOR A PERMANENT MAGNET MOTOR USED IN AN ELECTRIC SUBMERSIBLE PUMP

#41
20230308040
2023-09-28

Delay reduction for pulsed wound field synchronous machines

#42
20230283154
2023-09-07

Systems, methods, and computer-readable media for driving polyphase motors

#43
20230261599
2023-08-17

Drive system having harmonics infeed

#44
20230246578
2023-08-03

Finite time speed control method for permanent magnet synchronous motor based on fast integral terminal sliding mode and disturbance estimation

#45
20230231425
2023-07-20

MOTOR AND CONTROL DEVICE THEREOF

#46
20230208329
2023-06-29

Predictive control method of current increment for permanent magnet synchronous motor under high-speed operation

#47
20230163704
2023-05-25

Control method for balancing scaling errors of multiple current sensors for PMSM

#48
20230080806
2023-03-16

Systems and methods for real time permanent magnet synchronous machine control

#49
20230079383
2023-03-16

Motor system

#50
20230045429
2023-02-09

Motor control device and air conditioner

#51
20230038317
2023-02-09

Synchronous motor startup configuration to synchronous mode at a field zero-crossing

#52
20230006582
2023-01-05

Control method of dual three-phase permanent magnet synchronous motor by alternately performing sampling and control procedures

#53
20230003798
2023-01-05

Permanent magnet synchronous motor diagnostic device and inverter comprising the same

#54
20220368260
2022-11-17

Driving and resistance control system for permanent-magnet synchronous motor

#55
20220352837
2022-11-03

Rotary machine control device

#56
20220345066
2022-10-27

CONTROLLER FOR AC ROTARY MACHINE

#57
20220337182
2022-10-20

Transient current planning method for ultra-high-speed permanent magnet synchronous motor for improving speed regulation response capabilities

#58
20220329187
2022-10-13

Method for tracing MTPA curve of vehicle permanent magnet synchronous motor based on DC power

#59
20220286077
2022-09-08

Fault tolerant actuator assembly

#60
20220263445
2022-08-18

Automatically determining control parameters for a voltage regulator of a synchronous machine

#61
20220247337
2022-08-04

Controller for AC rotary electric machine

#62
20220247332
2022-08-04

Method and system for determining crankshaft position in an electrical generating system

#63
20220239244
2022-07-28

DIVIDED PHASE AC SYNCHRONOUS MOTOR CONTROLLER

#64
20220190761
2022-06-16

MOTOR CONTROL DEVICE

#65
20220109386
2022-04-07

Torque capability optimization under active limiting of regenerative current in synchronous motor drives

#66
20220103109
2022-03-31

Electric motors and drive circuits therefor

#67
20220029553
2022-01-27

Circuit arrangement with active rectifier circuit and its application in a synchronous machine

#68
20220006408
2022-01-06

Motor drive apparatus and cooling apparatus

#69
20220006400
2022-01-06

Method for a network synchronization of a permanently excited three-phase machine comprising a soft starter which comprises thyristors

#70
20210313918
2021-10-07

Electric motors and drive circuits therefor

#71
20210242815
2021-08-05

Rotary machine controller, refrigerant compressor, refrigeration cycle system, and air conditioner

#72
20210152104
2021-05-20

Thyristor starter

#73
20210083602
2021-03-18

Thyristor starter

#74
20210075358
2021-03-11

Method for operating an electric synchronous machine

#75
20210075277
2021-03-11

Demagnetization of the rotor of an externally excited synchronous machine

#76
20210058018
2021-02-25

Permanent magnet synchronous electric motor control device, electric power steering device, and electric vehicle

#77
20200412287
2020-12-31

Divided phase AC synchronous motor controller

#78
20200384965
2020-12-10

Apparatus and method for detecting offset of motor position sensor

#79
20200321824
2020-10-08

Voltage optimization technique for a permanent magnet motor used in an electric submersible pump

#80
20200295696
2020-09-17

Rotary electric machine control device

#81
20200287482
2020-09-10

CONTROL CIRCUIT FOR ELECTRIC TOOL

#82
20200244203
2020-07-30

Motor control device and brake control device

#83
20200112280
2020-04-09

Dynamic estimation of supply current for electric motor drive

#84
20200108856
2020-04-09

Inverter commutation techniques for five-phase synchronous motor drives

#85
20200044576
2020-02-06

Current source converter with dynamical firing angle determination

#86
20190356255
2019-11-21

Device and a method for estimating inductances of an electric machine

#87
20190348940
2019-11-14

Reconfigurable winding connection for five-phase permanent magnet electric machine

#88
20190296671
2019-09-26

Divided phase AC synchronous motor controller

#89
20190275890
2019-09-12

Method for switching off a current-excited synchronous machine of a motor vehicle

#90
20190222159
2019-07-18

Motor drive device including power storage unit, and motor drive system

#91
20190199260
2019-06-27

Inverter control device and motor drive system

#92
20190140564
2019-05-09

Power management in permanent magnet synchronous motor drives

#93
20190089274
2019-03-21

Motor control integrated circuit

#94
20190044462
2019-02-07

Magnetic pole position detecting device for synchronous motor and magnetic pole position detecting method for synchronous motor

#95
20190020295
2019-01-17

Hybrid surface magnet machine

#96
20190006967
2019-01-03

Method for detecting load differences

#97
20180269771
2018-09-20

Power conversion device

#98
20180262141
2018-09-13

Motor control apparatus

#99
20180234040
2018-08-16

MOTOR

#100
20180219504
2018-08-02

Magnetization state control method and magnetization state control device

#101
20180198332
2018-07-12

Rotary electric machine, rotary electric machine system, and machine

#102
20180175769
2018-06-21

Electrical Drive Unit

#103
20180175691
2018-06-21

Alternator with integrated engine controller

#104
20180167012
2018-06-14

Divided phase AC synchronous motor controller

#105
20180138848
2018-05-17

MOTOR AND MOTOR DRIVING CIRCUIT

#106
20180094512
2018-04-05

Systems and methods for optimizing an efficiency of a variable frequency drive

#107
20180091079
2018-03-29

Inverter control device and air conditioner

#108
20180062547
2018-03-01

Systems and methods for reducing DC link voltage dynamics with limited energy storage element

#109
20180034398
2018-02-01

Divided phase AC synchronous motor controller

#110
20180019700
2018-01-18

CONTROLLER FOR PERMANENT MAGNET SYNCHRONOUS MOTOR, IMAGE FORMING APPARATUS, AND CONTROL METHOD

#111
20180013375
2018-01-11

Slip-dependent motor model

#112
20180013369
2018-01-11

Control apparatus for rotary electric machine

#113
20180013367
2018-01-11

Hybrid surface magnet machine

#114
20170353140
2017-12-07

Controller and a method to drive an inverter circuit for a permanent-magnet synchronous motor

#115
20170310263
2017-10-26

Apparatus and methods of controlling electric drive with reconfigurable winding

#116
20170271999
2017-09-21

Module, and power conversion apparatus and motor using the module

#117
20170179795
2017-06-22

Driver assembly

#118
20170133960
2017-05-11

Rotating electric machine drive system

#119
20160352204
2016-12-01

REFRIGERATION APPARATUS

#120
20160329853
2016-11-10

Electric motor drive device and control method therefor

#121
20160254772
2016-09-01

Method for suppressing a speed fluctuation, a control apparatus and a compressor control system

#122
20160248359
2016-08-25

Control device for rotating electrical machine

#123
20160226406
2016-08-04

Variable Voltage Drive using Bidirectional Bipolar Transistors

#124
20160204722
2016-07-14

Hybrid surface magnet machine

#125
20160126870
2016-05-05

Motor drive controller and control method of motor drive controller

#126
20160072416
2016-03-10

Motor drive device

#127
20150326100
2015-11-12

Electronically controlled universal motor

#128
20150288311
2015-10-08

Method and Apparatus for Control of a Synchronous Permanent Magnet Motor, Particularly Over a Long Cable in a Well

#129
20150236632
2015-08-20

Methods of controlling a machine using a torque command limit derived from a current limit and systems thereof

#130
20150130390
2015-05-14

Electronically controlled universal motor

#131
20150035499
2015-02-05

Method for using an electric unit

#132
20150035285
2015-02-05

Electric unit for a pumped-storage power plant having components within and outside of an underground cavern

#133
20140117905
2014-05-01

Rotor control

#134
18763985
2025-02-25

Dead-time compensation method and apparatus for permanent magnet synchronous motor, device, and storage medium

#135
17737826
2023-06-06

Efficiency optimization of maximum torque per amps control for synchronous motors

#136
16585070
2020-10-13

Voice coil motor saturation detection

#137
16116106
2019-11-19

System and method for reducing current harmonic distortion in a motor controller

#138
16049921
2020-01-07

Machine current limiting for permanent magnet synchronous machines