CN107863914B - Asynchronous motor rotor time constant self-adjusting system - Google Patents
Asynchronous motor rotor time constant self-adjusting system Download PDFInfo
- Publication number
- CN107863914B CN107863914B CN201711098286.1A CN201711098286A CN107863914B CN 107863914 B CN107863914 B CN 107863914B CN 201711098286 A CN201711098286 A CN 201711098286A CN 107863914 B CN107863914 B CN 107863914B
- Authority
- CN
- China
- Prior art keywords
- motor
- temperature
- time constant
- motor controller
- controller
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
- 238000005259 measurement Methods 0.000 claims description 3
- 230000008859 change Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P21/00—Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
- H02P21/14—Estimation or adaptation of machine parameters, e.g. flux, current or voltage
- H02P21/16—Estimation of constants, e.g. the rotor time constant
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/02—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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P2207/00—Indexing scheme relating to controlling arrangements characterised by the type of motor
- H02P2207/01—Asynchronous machines
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Electric Motors In General (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
The invention provides a rotor time constant self-adjusting system of an asynchronous motor, which comprises a temperature sensor, a torque sensor, a motor controller, a motor and a motor encoder, wherein the output end of the temperature sensor, the torque sensor and the motor encoder are all in signal connection with one end of the motor controller, and the other end of the motor controller is in signal connection with the motor; the invention has simple structure, high stability and low cost, monitors the working state of the motor in real time through the temperature sensor and the torque sensor, reduces the influence of temperature on the time constant of the rotor, ensures that the torque obtained at any temperature is maximum, and compensates the influence of the change of the motor working along with the temperature on the time constant of the rotor.
Description
Technical Field
The invention belongs to the field of motor control, and particularly relates to a rotor time constant self-adjusting system of an asynchronous motor.
Background
An ac asynchronous motor is an electric traction device that converts electrical energy into mechanical energy. It is mainly composed of stator, rotor and air gap between them. After the stator winding is connected to a three-phase alternating current power supply, a rotating magnetic field is generated and the rotor is cut, so that torque is obtained. The electric vehicle control system has the advantages of simple structure, reliable operation, low price, strong overload capacity, convenient use, installation and maintenance and the like, so that the electric vehicle control system gradually replaces a direct current motor in the control of new energy electric vehicles, and occupies a mainstream position in the current electric vehicle field.
Currently, an asynchronous motor is commonly adopted for directional control based on a rotor magnetic field, wherein if a rotor time constant is set inaccurately, the dynamic and static performances of the motor are affected to different degrees. Most manufacturers of the existing motor controllers of the electric automobile adopt a rotor time constant with a constant set value, so that influences of reference quantities such as temperature, magnetic circuit saturation and the like on the rotor time constant are ignored, and therefore part of performance of the motor is sacrificed, and the asynchronous motor cannot fully exert efficiency.
Disclosure of Invention
In view of the above, the invention aims to provide a simple and practical self-adjusting system for rotor time constant of an asynchronous motor, which can compensate the combination temperature of the rotor time constant influenced by the change of temperature.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
The utility model provides an asynchronous motor rotor time constant self-regulating system, includes temperature sensor, torque sensor appearance, motor controller, motor and motor encoder, temperature sensor's output, torque sensor appearance, motor encoder all with motor controller one end signal connection, motor controller other end and motor signal connection.
Further, a temperature compensation circuit is further connected between the temperature sensor and the motor controller, and the temperature compensation circuit is used for reducing measurement errors.
Further, an analog-to-digital converter is also connected between the torque sensor and the motor controller.
Further, the motor encoder is a code wheel, the output end of the code wheel is connected with the input end of the motor controller, and the code wheel is used for collecting the rotating speed of the motor.
Compared with the prior art, the self-adjusting system for the rotor time constant of the asynchronous motor has the following advantages:
The invention has simple structure, high stability and low cost, monitors the working state of the motor in real time through the temperature sensor and the torque sensor, reduces the influence of temperature on the time constant of the rotor, ensures that the torque obtained at any temperature is the maximum value, and compensates the influence of the change of the motor working along with the temperature on the time constant of the rotor.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art in a specific case.
The invention will be described in detail below with reference to the drawings in connection with embodiments.
As shown in FIG. 1, the asynchronous motor rotor time constant self-adjusting system comprises a temperature sensor, a torque sensor, a motor controller, a motor and a motor encoder, wherein the output end of the temperature sensor, the torque sensor and the motor encoder are all in signal connection with one end of the motor controller, and the other end of the motor controller is in signal connection with the motor.
A temperature compensation circuit is also connected between the temperature sensor and the motor controller, and the temperature compensation circuit is used for reducing measurement errors; and an analog-to-digital converter is also connected between the torque sensor and the motor controller.
The motor encoder is a code wheel, the output end of the code wheel is connected with the input end of the motor controller, and the code wheel is used for collecting the rotating speed of the motor.
The specific implementation process of the invention comprises the following steps: the motor controller monitors the rotating speed of the motor in real time according to the motor code disc; according to the current temperature of the motor detected by the motor temperature sensor, the off-line standard limiting motor rotating speed of the motor controller is set as the motor rated rotating speed\the given motor current is set as the motor rated current by the motor encoder, the optimal value of the time constant of the motor rotor at the specific temperature (the middle temperature adopts an interpolation method) is calibrated, then the torque value acquired by the torque sensor is matched, the rotor time constant corresponding to the maximum torque is found out, the final result is output, and the motor controller is used for controlling the motor to work fully.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (1)
1. An asynchronous motor rotor time constant self-adjusting system is characterized in that: the motor controller comprises a temperature sensor, a torque sensor, a motor controller, a motor and a motor encoder, wherein the output end of the temperature sensor, the torque sensor and the motor encoder are all in signal connection with one end of the motor controller, and the other end of the motor controller is in signal connection with the motor;
a temperature compensation circuit is also connected between the temperature sensor and the motor controller, and the temperature compensation circuit is used for reducing measurement errors;
An analog-to-digital converter is also connected between the torque sensor and the motor controller;
The motor encoder is a code disc, the output end of the code disc is connected with the input end of the motor controller, and the code disc is used for collecting the rotating speed of the motor;
The motor controller monitors the rotating speed of the motor in real time according to the motor code disc; according to the current temperature of the motor detected by the motor temperature sensor, the off-line calibration motor rotating speed of the motor controller is set to be the rated motor rotating speed through the motor encoder, or the given motor current is set to be the rated motor current, the optimal value of the time constant of the motor rotor at the specific temperature is calibrated, then the torque value acquired by the torque sensor is matched, the rotor time constant corresponding to the maximum torque is found out, the final result is output, and the motor controller is used for controlling the motor to work in full effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711098286.1A CN107863914B (en) | 2017-11-09 | 2017-11-09 | Asynchronous motor rotor time constant self-adjusting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711098286.1A CN107863914B (en) | 2017-11-09 | 2017-11-09 | Asynchronous motor rotor time constant self-adjusting system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107863914A CN107863914A (en) | 2018-03-30 |
| CN107863914B true CN107863914B (en) | 2024-05-07 |
Family
ID=61700012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711098286.1A Active CN107863914B (en) | 2017-11-09 | 2017-11-09 | Asynchronous motor rotor time constant self-adjusting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107863914B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114148181B (en) * | 2021-11-26 | 2024-02-02 | 天津英捷利汽车技术有限责任公司 | Pure electric vehicle anti-slip method and system based on rotating speed ring and position ring |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR960008884U (en) * | 1994-08-25 | 1996-03-16 | Automatic measuring device of rotor time constant for induction motor | |
| CN101093033A (en) * | 2007-07-20 | 2007-12-26 | 孙力 | Frequency conversion type intellective electromotion unit for valve |
| CN102097985A (en) * | 2009-12-10 | 2011-06-15 | 通用汽车环球科技运作有限责任公司 | Method and system for induction machine control |
| KR20120067204A (en) * | 2010-12-15 | 2012-06-25 | 엘지전자 주식회사 | Appratus and method for controlling motor of electric vehicle |
| CN202608866U (en) * | 2012-06-12 | 2012-12-19 | 福建省福工动力技术股份公司 | Electric power-assisted steering system of hybrid electrical vehicle |
| KR101251533B1 (en) * | 2011-12-05 | 2013-04-05 | 명지대학교 산학협력단 | Apparatus for controling induction motor and method thereof |
| CN103731081A (en) * | 2013-12-30 | 2014-04-16 | 深圳市航盛电子股份有限公司 | Method for determining optimal time constant of three-phase asynchronous motor rotor |
| CN104158457A (en) * | 2014-07-24 | 2014-11-19 | 中国东方电气集团有限公司 | Torque calibration method for AC induction motor of electric vehicle |
| CN104410237A (en) * | 2014-11-27 | 2015-03-11 | 沈阳工业大学 | Integral direct-drive disc-type wheel hub motor |
| CN105811833A (en) * | 2016-04-21 | 2016-07-27 | 中国船舶重工集团公司第七〇二研究所 | Time constant adjustment method of AC asynchronous motor rotor |
| CN106053055A (en) * | 2016-05-31 | 2016-10-26 | 广州特种机电设备检测研究院 | Clutch explosion protection performance test device and test method |
| CN106602953A (en) * | 2016-12-16 | 2017-04-26 | 浙江大学 | Method for verifying induction motor rotor time constant based on magnetic field orientation accuracy |
| CN106877767A (en) * | 2017-02-20 | 2017-06-20 | 上海新时达电气股份有限公司 | The method and device of on-line measurement time constant of rotor of asynchronous machine |
| CN206609455U (en) * | 2017-01-24 | 2017-11-03 | 杭州威衡科技有限公司 | A kind of motor working condition measurement system |
| CN207368824U (en) * | 2017-11-09 | 2018-05-15 | 天津英捷利汽车技术有限责任公司 | A kind of rotor time constant adjusting apparatus of combination temperature |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101221748B1 (en) * | 2011-10-27 | 2013-01-11 | 엘에스산전 주식회사 | Apparatus for estimating rotor time constant of induction motor |
-
2017
- 2017-11-09 CN CN201711098286.1A patent/CN107863914B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR960008884U (en) * | 1994-08-25 | 1996-03-16 | Automatic measuring device of rotor time constant for induction motor | |
| CN101093033A (en) * | 2007-07-20 | 2007-12-26 | 孙力 | Frequency conversion type intellective electromotion unit for valve |
| CN102097985A (en) * | 2009-12-10 | 2011-06-15 | 通用汽车环球科技运作有限责任公司 | Method and system for induction machine control |
| KR20120067204A (en) * | 2010-12-15 | 2012-06-25 | 엘지전자 주식회사 | Appratus and method for controlling motor of electric vehicle |
| KR101251533B1 (en) * | 2011-12-05 | 2013-04-05 | 명지대학교 산학협력단 | Apparatus for controling induction motor and method thereof |
| CN202608866U (en) * | 2012-06-12 | 2012-12-19 | 福建省福工动力技术股份公司 | Electric power-assisted steering system of hybrid electrical vehicle |
| CN103731081A (en) * | 2013-12-30 | 2014-04-16 | 深圳市航盛电子股份有限公司 | Method for determining optimal time constant of three-phase asynchronous motor rotor |
| CN104158457A (en) * | 2014-07-24 | 2014-11-19 | 中国东方电气集团有限公司 | Torque calibration method for AC induction motor of electric vehicle |
| CN104410237A (en) * | 2014-11-27 | 2015-03-11 | 沈阳工业大学 | Integral direct-drive disc-type wheel hub motor |
| CN105811833A (en) * | 2016-04-21 | 2016-07-27 | 中国船舶重工集团公司第七〇二研究所 | Time constant adjustment method of AC asynchronous motor rotor |
| CN106053055A (en) * | 2016-05-31 | 2016-10-26 | 广州特种机电设备检测研究院 | Clutch explosion protection performance test device and test method |
| CN106602953A (en) * | 2016-12-16 | 2017-04-26 | 浙江大学 | Method for verifying induction motor rotor time constant based on magnetic field orientation accuracy |
| CN206609455U (en) * | 2017-01-24 | 2017-11-03 | 杭州威衡科技有限公司 | A kind of motor working condition measurement system |
| CN106877767A (en) * | 2017-02-20 | 2017-06-20 | 上海新时达电气股份有限公司 | The method and device of on-line measurement time constant of rotor of asynchronous machine |
| CN207368824U (en) * | 2017-11-09 | 2018-05-15 | 天津英捷利汽车技术有限责任公司 | A kind of rotor time constant adjusting apparatus of combination temperature |
Non-Patent Citations (1)
| Title |
|---|
| 潘新民.《微型计算机与传感器技术》.人民邮电出版社,1988,63-64. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107863914A (en) | 2018-03-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2013204591A1 (en) | Methods and systems for controlling an electric motor | |
| CN102005889A (en) | Electrically driven equipment with control function of brushless direct current motor | |
| CN103312246A (en) | Control system and control method of permanent magnet synchronous motor of series-connected cascade-type multi-level converter | |
| CN203708155U (en) | Permanent magnet synchronous motor (PMSM) controller and vehicle-mounted system for electric vehicles | |
| CN107863914B (en) | Asynchronous motor rotor time constant self-adjusting system | |
| CN203180813U (en) | A motor controller for a self-balance double-wheel electric bicycle, and the self-balance double-wheel electric bicycle | |
| CN206302299U (en) | Wall-breaking machine motor | |
| CN201887605U (en) | Electric drive equipment for BLDCM with control function | |
| CN207368824U (en) | A kind of rotor time constant adjusting apparatus of combination temperature | |
| CN200976563Y (en) | Main driving mechanism of AC electric vehicle | |
| CN102638215A (en) | Vector control system for speedless sensor of induction motor of electric automobile | |
| CN204392131U (en) | Based on the AC magnetism bearing electric chief axis operating control device of matrix converter | |
| CN201515278U (en) | digital motor | |
| CN105553343A (en) | Capacitor-free direct-current brushless driving controller | |
| CN114402514B (en) | Motor, control method, power system and electric automobile | |
| CN207559893U (en) | A kind of Multiple coil wide range speed control permanent magnet type synchronous motor system | |
| CN201178392Y (en) | Control circuit of DC frequency converting motor | |
| CN201763525U (en) | Permanent magnet direct current brushless pitch control device | |
| CN209709979U (en) | A kind of air compressor machine using no Hall brushless motor | |
| CN216922452U (en) | Self-adaptive constant-pressure water supply pump variable-frequency controller without sensor | |
| CN104734576A (en) | Controller of permanent magnetic synchronous motor for electric vehicle and vehicle-mounted system | |
| CN212849835U (en) | DC motor protector | |
| CN205212681U (en) | Novel drag electricity generation type motor in two plays axle | |
| CN204334231U (en) | Integral type variable-frequency motor | |
| CN207851583U (en) | A kind of intelligent power supply module of brushless motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |