CN101603997B - Method for testing parameters of synchronous motor and device for achieving same - Google Patents

Method for testing parameters of synchronous motor and device for achieving same Download PDF

Info

Publication number
CN101603997B
CN101603997B CN2009100724591A CN200910072459A CN101603997B CN 101603997 B CN101603997 B CN 101603997B CN 2009100724591 A CN2009100724591 A CN 2009100724591A CN 200910072459 A CN200910072459 A CN 200910072459A CN 101603997 B CN101603997 B CN 101603997B
Authority
CN
China
Prior art keywords
synchronous motor
tested
tested synchronous
motor
current
Prior art date
Application number
CN2009100724591A
Other languages
Chinese (zh)
Other versions
CN101603997A (en
Inventor
寇宝泉
刘奉海
Original Assignee
哈尔滨工业大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 哈尔滨工业大学 filed Critical 哈尔滨工业大学
Priority to CN2009100724591A priority Critical patent/CN101603997B/en
Publication of CN101603997A publication Critical patent/CN101603997A/en
Application granted granted Critical
Publication of CN101603997B publication Critical patent/CN101603997B/en

Links

Abstract

The invention provides a method for testing parameters of a synchronous motor and a device for achieving the same, which relate to the field of motor tests. The method and the device solve the problems of low testing accuracy of quadrature and direct axis inductance parameters, complex method for testing moment coefficient, and strong dependency on driver performance in the prior method. The method comprises the following steps: energizing any two phases in three phases of windings of a tested synchronous motor with single-phase alternating current, driving a rotor of the tested synchronous motor with an external force to rotate at a uniform speed for at least one revolution, testing voltage signals at two ends of the energized windings, and obtaining the quadrature axis and direct axis inductances of Lq and Ld respectively of the tested synchronous motor according to the voltage signals; and energizing any two phases of the three phases of the windings ofthe tested synchronous motor with direct current I1, driving the motor of the tested synchronous motor with the external force to rotate at a uniform speed for at least one revolution, and calculating the moment coefficient KT of the tested synchronous motor according to the tested maximum moment value Tmax1. The method and the device are applied to the field of testing the parameters of the synchronous motor.

Description

Testing parameters of synchronous motor and realize the device of this method

Technical field

The present invention relates to the Motor Measuring Technology field, be specifically related to the measuring technology of parameter of synchronous machine.

Background technology

The order of accuarcy of parameter of synchronous machine has crucial influence for the computational accuracy of motor characteristic and performance, the accuracy of mathematical model, the control performance of kinetic control system.In parameter of synchronous machine, winding resistance can utilize methods such as LCR table, bridge method to record simply usually; Back emf coefficient can be utilized other motor to drag by measured motor to rotate, survey the unloaded electromotive force and the motor speed at its winding two ends, obtain by calculating then; The measuring process of moment coefficient is normally: adopt driver to drive by measured motor, loaded by measured motor by dynamometer machine, the output torque that utilizes torque sensor to record motor utilizes current sensor to record the winding current of motor, and then calculates moment coefficient; In parameter of synchronous machine the most difficult measurement be exactly hand over, the d-axis inductance, in the Electrical Motor teaching material, normally adopt the slip frequency method to come the unsaturated value of measurement synchronization motor, but its saturation value but is difficult to measure.

The method of testing subject matter of above-mentioned parameter of synchronous machine is: the measuring accuracy of friendship, d-axis inductance parameters is low; The method of testing complexity of moment coefficient, and measuring accuracy is low, and strong to the dependence of drive performance; Can not record each parameter simultaneously with a cover proving installation.

Summary of the invention

In order to solve low, the moment coefficient method of testing complexity of measuring accuracy of the ac-dc axis inductance parameters that exists in the method for testing that has parameter of synchronous machine now, and problem strong to the dependence of drive performance, that can not measure each parameter of acquisition simultaneously, the present invention proposes a kind of testing parameters of synchronous motor and realizes the device of this method.

The detailed process of testing parameters of synchronous motor of the present invention is:

Measure the friendship, the d-axis inductance L that obtain tested synchronous motor winding a, L d, detailed process is: give in any two-phase in three phase windings of tested synchronous motor and feed single-phase alternating current The rotor that adopts external force to drag tested synchronous motor at the uniform velocity rotates a circle above, in tested synchronous motor rotary course, measure the voltage at energising winding two ends, and decomposition computation goes out the fundamental voltage effective value of measuring voltage, takes out the maximal value U in whole fundamental voltage effective values then Max1, minimum value U Min1, then the friendship axle of tested synchronous motor and d-axis inductance are respectively With , wherein, R FaFor power frequency is The time every phase winding AC resistance, R Fa=kR 0a, k is the enhancement coefficient of winding resistance when considering kelvin effect, k 〉=1, R 0aSingle-phase winding D.C. resistance for tested synchronous motor;

Measure the moment coefficient K of tested synchronous motor T, detailed process is: give and feed DC current I in any two-phase in three phase windings of tested synchronous motor 1, the rotor that adopts external force to drag tested synchronous motor at the uniform velocity rotates a circle above, measures and obtain maximum torque value T in tested synchronous motor rotary course Max1, the moment coefficient of tested synchronous motor then

The direct current resistance R of every phase winding of described tested synchronous motor 0aMeasuring process be: feed DC current I for any two phase windings in three phase windings of tested synchronous motor 0a, gather the DC voltage U that acquisition is connected with two phase winding two ends of DC current 0a, then the single-phase winding D.C. resistance of tested synchronous motor is: R 0 a = U 0 a 2 I 0 a .

Be used to realize the device of above-mentioned testing parameters of synchronous motor, form by motor driver, data acquisition and controller, servo-driver, loading motor, torque/speed sensor, current sensor, voltage sensor, interchange programmable power supply and tested synchronous motor, motor driver is used for sending drive signal to tested synchronous motor under the control of data acquisition and controller, also be used for the parameter of described drive signal is sent to data acquisition and controller; Described data acquisition and controller are used to gather torque and tach signal, the current signal of current sensor transmission and the voltage signal that voltage sensor sends that the torque/speed sensor sends, and also are used to transmit control signal to servo-driver; Servo-driver is used for sending drive signal to loading motor under the control of data acquisition and controller; Loading motor is used to drag tested synchronous motor rotation; The torque/speed sensor is used to measure the rotating speed and the torque of tested synchronous motor; Exchanging programmable power supply is used for giving under the control of data acquisition and controller the winding of tested synchronous motor to feed electric current; Current sensor is used for measuring the current value in the tested synchronous motor winding; Voltage sensor is used for measuring the magnitude of voltage at tested synchronous motor winding two ends.

Method of testing of the present invention and device, can accurately measure the parameters of electric machine such as the winding resistance that obtains synchronous motor, winding inductance, back emf coefficient, moment coefficient, and system architecture is simple, easy to operate, especially when the winding inductance of measuring permagnetic synchronous motor and moment coefficient, of the influence of motor location torque can be effectively avoided, measuring accuracy can be improved greatly measurement result.

Description of drawings

The structural representation of testing parameters of synchronization electric motor device of the present invention during Fig. 1.Fig. 2 is in the embodiment one, measures friendship, the d-axis inductance L of tested synchronous motor winding a, L dProcess in, described motor windings energising synoptic diagram.Fig. 3 is embodiment two described direct current resistance R at every phase winding of measuring tested synchronous motor 0aProcess in, described motor windings energising synoptic diagram.Fig. 4 is that embodiment three is described at the back emf coefficient K that measures tested synchronous motor EProcess in, the effective value E of electromotive force first-harmonic 0The measuring position synoptic diagram.

Embodiment

Embodiment one: the process of the described testing parameters of synchronous motor of present embodiment is:

Measure the friendship, the d-axis inductance L that obtain tested synchronous motor winding a, L d, detailed process is: give in any two-phase in three phase windings of tested synchronous motor and feed single-phase alternating current The rotor that adopts external force to drag tested synchronous motor at the uniform velocity rotates a circle above, in tested synchronous motor rotary course, measure the voltage u at energising winding two ends, and decomposition computation goes out the fundamental voltage effective value of measuring voltage, takes out the maximal value U in whole fundamental voltage effective values then Max1, minimum value U Min1, then the friendship axle of tested synchronous motor and d-axis inductance are respectively With , wherein, R FaFor power frequency is The time every phase winding AC resistance, R Fa=kR 0a, k is the enhancement coefficient of winding resistance when considering kelvin effect, k 〉=1, R 0aSingle-phase winding D.C. resistance for tested synchronous motor;

Measure the moment coefficient K of tested synchronous motor T, detailed process is: give and feed DC current I in any two-phase in three phase windings of tested synchronous motor 1, the rotor that adopts external force to drag tested synchronous motor at the uniform velocity rotates a circle above, measures and obtain maximum torque value T in tested synchronous motor rotary course Max1, the moment coefficient of tested synchronous motor then

In the process of the friendship of measuring tested synchronous motor, d-axis inductance, the rotating speed of described rotation is lower than 5 rev/mins.

At the moment coefficient K that measures tested synchronous motor TProcess in, the rotating speed of described rotation is lower than 5 rev/mins.

Two inductance value that present embodiment obtains both can also can be the d-axis inductance for handing over the axle inductance respectively, and concrete condition need be determined according to the rotor structure of tested synchronous motor.

Three phase windings of the tested synchronous motor described in the present embodiment are Y-connection, referring to shown in Figure 2, and the single-phase alternating current that feeds in any two-phase in three phase windings of tested synchronous motor That is: described single-phase alternating current i holds output from the input of B end, the C of three phase windings, measures the voltage u between B end and two end points of C end then.

Present embodiment is at the moment coefficient K that measures tested synchronous motor TProcess in, feed DC current I in any two-phase in three phase windings 1, in like manner be meant described DC current I 1In the input of B end, C output.

When described winding is a dihedral when connecting, the equivalent circuit structure of those skilled in the art during according to test parameter also can calculate the friendship, the d-axis inductance L that obtain tested synchronous motor winding a, L dWith moment coefficient K T

The described testing parameters of synchronous motor of present embodiment can be measured friendship, d-axis inductance and the moment coefficient that obtains tested synchronous motor simultaneously, and it is simple to have measuring method, it is little to the measurement result influence to measure the performance of using motor driver, the advantage that measuring accuracy is high.

Embodiment two: the described testing parameters of synchronous motor of present embodiment is on the basis of embodiment one described method of testing, has increased the direct current resistance R of every phase winding of measuring tested synchronous motor 0aStep, detailed process is: feed DC current I for any two phase windings in three phase windings of tested synchronous motor 0a, gather the DC voltage U that acquisition is connected with two phase winding two ends of DC current 0a, then the single-phase winding D.C. resistance of tested synchronous motor is:

Present embodiment is described to feed DC current I at any two-phase winding 0a,, be meant described DC current I referring to shown in Figure 3 0aHold output from the input of B end, the C of three phase windings, measure the DC voltage U between B end and two end points of C end then 0a

Embodiment three: the described testing parameters of synchronous motor of present embodiment is on the basis of embodiment one described method of testing, has increased the back emf coefficient K that measures tested synchronous motor EStep, detailed process is: adopt external force to drag tested synchronous motor and at the uniform velocity rotate with rotation speed n, gather the effective value E of the electromotive force first-harmonic at any two phase winding two ends in the tested synchronous motor in tested synchronous motor rotary course 0, obtain the back emf coefficient of tested synchronous motor

The electromotive force at the described any two phase winding two ends of present embodiment referring to shown in Figure 4, is meant the electromotive force at two phase winding two ends, that is: the electromotive force between B end and the C end.

Can adopt servomotor to realize in the external force described in embodiment one or three, that is: adopt servomotor to drag the rotor rotation of tested synchronous motor.Servomotor has the high advantage of rotating speed control accuracy, can reach the purpose of the rotating speed of the tested synchronous motor of accurate control, has guaranteed the precision of measurement result.

Embodiment four: the device that is used to realize embodiment one described testing parameters of synchronous motor, form by motor driver 1, data acquisition and controller 2, servo-driver 3, loading motor 4, torque/speed sensor 5, current sensor, voltage sensor, interchange programmable power supply and tested synchronous motor 9, motor driver 1 is used for sending drive signal to tested synchronous motor 9 under the control of data acquisition and controller 2, also be used for the parameter of described drive signal is sent to data acquisition and controller 2; Described data acquisition and controller 2 are used to gather torque and tach signal, the current signal of current sensor transmission and the voltage signal that voltage sensor sends that torque/speed sensor 5 sends, and also are used to transmit control signal to servo-driver 3; Servo-driver 3 is used for sending drive signal to loading motor 4 under the control of data acquisition and controller 2; Loading motor 4 is used to drag tested synchronous motor 9 rotations; Torque/speed sensor 5 is used to measure the rotating speed and the torque of tested synchronous motor 9; Exchanging programmable power supply is used for giving under the control of data acquisition and controller 2 winding of tested synchronous motor 9 to feed electric current; Current sensor is used for measuring the current value in tested synchronous motor 9 windings; Voltage sensor is used for measuring the magnitude of voltage at tested synchronous motor 9 winding two ends.

Adopt the process of the described device to test parameter of synchronous machine of present embodiment to be:

Measure the friendship, the d-axis inductance L that obtain tested synchronous motor 9 windings a, L dDetailed process be: give the single-phase alternating current that feeds in any two-phase of three phase windings of tested synchronous motor 9 by data acquisition and controller 2 control motor drivers 1 Dragging tested synchronous motor 9 by data acquisition and controller 2 control servo-drivers 3 driving loading motors 4 at the uniform velocity rotates a circle above, obtain the voltage signal at energising winding two ends in tested synchronous motor 9 rotary courses by voltage sensor, decomposition computation goes out the fundamental voltage effective value of described voltage signal then, and takes out the maximal value U in whole fundamental voltage effective values Max1, minimum value U Min1, the friendship axle and the d-axis inductance that obtain tested synchronous motor 9 are respectively With , wherein, R FaFor power frequency is The time every phase winding AC resistance, R Fa=kR 0a, k is the enhancement coefficient of winding resistance when considering kelvin effect, k 〉=1.

In the process of the friendship of measuring tested synchronous motor 9, d-axis inductance, the rotating speed of described rotation is lower than 5 rev/mins.

Measure the moment coefficient K of tested synchronous motor 9 TDetailed process be: exchange programmable power supplies by 2 controls of data acquisition and controller and give in any two-phase in three phase windings of tested synchronous motor 9 and feed DC current I 1, drive loading motors 4 by data acquisition and controller 2 control servo-drivers 3 again and drag tested synchronous motor 9 and at the uniform velocity rotate a circle abovely, in tested synchronous motor 9 rotary courses, measure and obtain maximum torque value T by torque/speed sensor 5 Max1, the moment coefficient of tested synchronous motor 9 K T = 3 T max 1 2 I 1 .

At the moment coefficient K that measures tested synchronous motor 9 TProcess in, the rotating speed of described rotation is lower than 5 rev/mins.

Two inductance value that present embodiment obtains both can also can be the d-axis inductance for handing over the axle inductance respectively, and concrete condition need be determined according to the rotor structure of tested synchronous motor.

Measure the direct current resistance R of every phase winding of tested synchronous motor 9 0aProcess be: exchange programmable power supplies by 2 controls of data acquisition and controller and feed DC current I for any two phase windings in three phase windings of tested synchronous motor 9 0a, obtain to be connected with the DC voltage U at two phase winding two ends of DC current by the voltage sensor collection 0a, the single-phase winding D.C. resistance of tested synchronous motor 9 is:

Measure the back emf coefficient K of motor EProcess be: drive loading motors 4 by data acquisition and controller 2 control servo-drivers 3 and drag tested synchronous motor 9 and at the uniform velocity rotate with rotation speed n, in tested synchronous motor 9 rotary courses, obtain the effective value E of the electromotive force first-harmonic at any two phase winding two ends in the tested synchronous motor 9 by the voltage sensor collection 0, and then obtain the back emf coefficient of tested synchronous motor 9 K E = E 0 3 n .

The described testing parameters of synchronization electric motor device of present embodiment can be measured the parameters such as friendship, d-axis inductance and moment coefficient that obtain tested synchronous motor 9 as required simultaneously, have that apparatus structure is simple, measuring method is simple, it is little to the measurement result influence to measure the performance of using motor driver, the advantage that measuring accuracy is high.

In the described device of present embodiment, the nominal torque of loading motor 4 is greater than the nominal torque of tested synchronous motor 9; The maximum speed of loading motor 4 is higher than the rated speed of tested synchronous motor 9.Exchange the rated current of the maximum output current of programmable power supply greater than tested synchronous motor 9; There is not damping winding on the rotor of tested synchronous motor 9; Three phase windings of tested synchronous motor 9 are Y-connection.

Loading motor 4 in the present embodiment is selected servomotor for use.Servomotor has the high advantage of rotating speed control accuracy, can reach the purpose of the rotating speed of the tested synchronous motor of accurate control, has guaranteed the precision of measurement result.

Claims (9)

1. testing parameters of synchronous motor is characterized in that its detailed process is:
Measure the friendship, the d-axis inductance L that obtain tested synchronous motor winding a, L d, detailed process is: give in any two-phase in three phase windings of tested synchronous motor and feed single-phase alternating current The rotor that adopts external force to drag tested synchronous motor at the uniform velocity rotates a circle above, in tested synchronous motor rotary course, measure the voltage at energising winding two ends, and decomposition computation goes out the fundamental voltage effective value of measuring voltage, takes out the maximal value U in whole fundamental voltage effective values then Max1, minimum value U Min1, then the friendship axle of tested synchronous motor and d-axis inductance are respectively With , wherein, R FaFor power frequency is The time every phase winding AC resistance, R Fa=kR 0a, k is the enhancement coefficient of winding resistance when considering kelvin effect, k 〉=1, R 0aSingle-phase winding D.C. resistance for tested synchronous motor;
Measure the moment coefficient K of tested synchronous motor T, detailed process is: give and feed DC current I in any two-phase in three phase windings of tested synchronous motor 1, the rotor that adopts external force to drag tested synchronous motor at the uniform velocity rotates a circle above, measures and obtain maximum torque value T in tested synchronous motor rotary course Max1, the moment coefficient of tested synchronous motor then
The direct current resistance R of every phase winding of described tested synchronous motor 0aMeasuring process be: feed DC current I for any two phase windings in three phase windings of tested synchronous motor 0a, gather the DC voltage U that acquisition is connected with two phase winding two ends of DC current 0a, then the single-phase winding D.C. resistance of tested synchronous motor is: R 0 a = U 0 a 2 I 0 a .
2. testing parameters of synchronous motor according to claim 1 is characterized in that, in the process of the friendship of measuring tested synchronous motor, d-axis inductance, the rotating speed of described rotation is lower than 5 rev/mins; At the moment coefficient K that measures tested synchronous motor TProcess in, the rotating speed of described rotation is lower than 5 rev/mins.
3. testing parameters of synchronous motor according to claim 1 is characterized in that it also comprises the back emf coefficient K that measures tested synchronous motor EStep, detailed process is: adopt external force to drag tested synchronous motor and at the uniform velocity rotate with rotation speed n, gather the effective value E of the electromotive force first-harmonic at any two phase winding two ends in the tested synchronous motor in tested synchronous motor rotary course 0, obtain the back emf coefficient of tested synchronous motor
4. according to claim 1 or 3 described testing parameters of synchronous motor, it is characterized in that described external force adopts servomotor to realize, that is: adopt servomotor to drag the rotor rotation of tested synchronous motor.
5. be used to realize the device of the described testing parameters of synchronous motor of the arbitrary claim of claim 1 to 3, it is characterized in that described device is by motor driver (1), data acquisition and controller (2), servo-driver (3), loading motor (4), torque/speed sensor (5), current sensor, voltage sensor, exchanging programmable power supply and tested synchronous motor (9) forms, motor driver (1) is used for sending drive signal to tested synchronous motor (9) under the control of data acquisition and controller (2), also be used for the parameter of described drive signal is sent to data acquisition and controller (2); Described data acquisition and controller (2) are used to gather torque and tach signal, the current signal of current sensor transmission and the voltage signal that voltage sensor sends that torque/speed sensor (5) sends, and also are used to transmit control signal to servo-driver (3); Servo-driver (3) is used for sending drive signal to loading motor (4) under the control of data acquisition and controller (2); Loading motor (4) is used to drag tested synchronous motor (9) rotation; Torque/speed sensor (5) is used to measure the rotating speed and the torque of tested synchronous motor (9); Exchanging programmable power supply is used for giving under the control of data acquisition and controller (2) winding of tested synchronous motor (9) to feed electric current; Current sensor is used for measuring the current value in tested synchronous motor (9) winding; Voltage sensor is used for measuring the magnitude of voltage at tested synchronous motor (9) winding two ends.
6. testing parameters of synchronization electric motor device according to claim 5 is characterized in that, the nominal torque of described loading motor (4) is greater than the nominal torque of tested synchronous motor (9); The maximum speed of loading motor (4) is higher than the rated speed of tested synchronous motor (9).
7. testing parameters of synchronization electric motor device according to claim 5 is characterized in that the maximum output current of described interchange programmable power supply is greater than the rated current of tested synchronous motor (9).
8. testing parameters of synchronization electric motor device according to claim 5 is characterized in that, three phase windings of tested synchronous motor (9) are Y-connection.
9. testing parameters of synchronization electric motor device according to claim 5 is characterized in that, described loading motor (4) is a servomotor.
CN2009100724591A 2009-07-03 2009-07-03 Method for testing parameters of synchronous motor and device for achieving same CN101603997B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009100724591A CN101603997B (en) 2009-07-03 2009-07-03 Method for testing parameters of synchronous motor and device for achieving same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009100724591A CN101603997B (en) 2009-07-03 2009-07-03 Method for testing parameters of synchronous motor and device for achieving same

Publications (2)

Publication Number Publication Date
CN101603997A CN101603997A (en) 2009-12-16
CN101603997B true CN101603997B (en) 2011-03-30

Family

ID=41469810

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009100724591A CN101603997B (en) 2009-07-03 2009-07-03 Method for testing parameters of synchronous motor and device for achieving same

Country Status (1)

Country Link
CN (1) CN101603997B (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101975923B (en) * 2010-08-24 2013-07-03 上海奥波电子有限公司 System for testing loading performance of motor
US8803461B2 (en) * 2010-12-22 2014-08-12 Arvind Kumar Tiwari System and method for synchronous machine health monitoring
CN102323057B (en) * 2011-08-23 2013-05-08 宜昌长机科技有限责任公司 Multispindle synchronization error detection apparatus and detection method thereof
CN102621396B (en) * 2012-03-09 2014-08-20 常州信息职业技术学院 Method and device for measuring alternate and direct axis induction of permanent magnet synchronous motor
CN103033748A (en) * 2012-12-27 2013-04-10 上海交通大学 Counter-trawling loading low speed electrical machine test equipment based on flexible hinge
CN103149453A (en) * 2013-03-20 2013-06-12 哈尔滨工业大学 Method for testing quadrature axis inductance and direct axis inductance of permanent magnet synchronous motors
JP6437633B2 (en) * 2014-08-21 2018-12-12 グアンドン ウェリング モーター マニュファクチュアリング カンパニー リミテッド Motor driving method and apparatus, electronic device
CN104635158A (en) * 2015-02-27 2015-05-20 北京精密机电控制设备研究所 Permanent magnet motor characteristic quantity measuring device and torque coefficient measuring method
CN104634485A (en) * 2015-03-07 2015-05-20 哈尔滨工业大学 Simple testing method for moment coefficient of alternating current permanent magnetic motor
CN104964776B (en) * 2015-06-30 2017-12-05 清华大学苏州汽车研究院(相城) The measuring apparatus and method of a kind of motor cogging torque and friction torque
CN105137168B (en) * 2015-08-29 2018-06-01 北京天航华创科技股份有限公司 A kind of low pressure case dynamic load sealing test system
CN105352638A (en) * 2015-10-16 2016-02-24 上海鲍麦克斯电子科技有限公司 Method for testing static holding torque of stepping motor
CN106772027A (en) * 2015-11-20 2017-05-31 沈阳新松机器人自动化股份有限公司 A kind of measuring method of AC servo motor parameter
JP6356716B2 (en) * 2016-02-29 2018-07-11 ファナック株式会社 Motor control device having torque command limiter
CN107543640B (en) * 2016-06-27 2019-11-08 深圳市智创电机有限公司 Motor torque measurement method and device
CN107490763B (en) * 2017-08-22 2019-05-03 中国矿业大学 A kind of the load simulation experimental rig and method of low-speed big permanent-magnet drive system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101087093A (en) * 2007-06-08 2007-12-12 哈尔滨工业大学 Synchronization electromotor with detection coil
CN101261294A (en) * 2008-04-24 2008-09-10 奇瑞汽车股份有限公司 Permanent-magnetic electric machine inductance parameter measuring apparatus and method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101087093A (en) * 2007-06-08 2007-12-12 哈尔滨工业大学 Synchronization electromotor with detection coil
CN101261294A (en) * 2008-04-24 2008-09-10 奇瑞汽车股份有限公司 Permanent-magnetic electric machine inductance parameter measuring apparatus and method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP特开2008-86129A 2008.04.10

Also Published As

Publication number Publication date
CN101603997A (en) 2009-12-16

Similar Documents

Publication Publication Date Title
US8207701B2 (en) Control method of electromotor
CN103269198B (en) Permanent magnet synchronous motor control method and system based on encoder automatic zero set
EP3190697B1 (en) Rotor temperature monitoring method and system for permanent magnet synchronous motor
CN103650326B (en) Method and apparatus for angle estimation in a synchronous machine
CN103248307B (en) Fault diagnosis method for current sensor in induction motor speed regulating system
US7560895B2 (en) Indirect rotor resistance estimation system and method
CN102487265B (en) For the method for the site error of adaptive equalization solver
CN100399695C (en) Rotor position detecting for conversion-type magnetic resistance drive
US8604745B2 (en) Apparatus and method for rotating-sensorless identification of mechanical parameters of a three-phase asynchronous motor
JP2010115063A (en) Controller which calculates power consumption of industrial machine
Suresh et al. Inductance based position encoding for sensorless SRM drives
EP2681064B1 (en) System for controlling an electric motor at or near stall conditions
CN101261294B (en) Permanent-magnetic electric machine inductance parameter measuring apparatus and method
CN101459406B (en) Automatic detection method and apparatus for double feeding motor rotor initial position angle
US8531141B2 (en) System for calibrating an electrical control system
CN104081652A (en) Control device and control method for permanent magnet electric motor
JP2014515244A (en) Method and system for controlling an electric motor with temperature compensation
JP2892802B2 (en) Motor speed control device
US8587239B2 (en) Apparatus and method for sensorless identification of rotating electrical equivalent circuit parameters of a three-phase asynchronous motor
US8415916B2 (en) Estimation of parameters of an induction machine
CN1153344C (en) Method of minimizing errors in rotor angle estimate in synchronous machine
US20120038298A1 (en) Apparatus And Method For Rotating-Sensorless Identification Of Equivalent Circuit Parameters Of An AC Synchronous Motor
CN104104299A (en) Sensorless vector control apparatus for induction motor
KR950010191B1 (en) Apparatus for estimating the rotator resistance of an industion motor
CN103076566B (en) A kind of to dragging loading slowspeed machine proving installation

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
C14 Grant of patent or utility model