CN101924514B - Rotary transformer initial position signal autocorrection method - Google Patents
Rotary transformer initial position signal autocorrection method Download PDFInfo
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- CN101924514B CN101924514B CN2010102983292A CN201010298329A CN101924514B CN 101924514 B CN101924514 B CN 101924514B CN 2010102983292 A CN2010102983292 A CN 2010102983292A CN 201010298329 A CN201010298329 A CN 201010298329A CN 101924514 B CN101924514 B CN 101924514B
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Abstract
The invention discloses a rotary transformer initial position signal autocorrection method, which realizes stator vector orientation through software, calculates the average value after multiple positions and multiple angles are tested. The method of the invention not only reduces the cost, but also improves the rotary transformer initial position signal autocorrection accuracy.
Description
Technical field
The invention belongs to the rotary transformer technology field, especially the permanent-magnetic synchronous motor rotor initial position detects, and is specifically related to a kind of method of rotary transformer initial position signal autocorrection.
Background technology
Permagnetic synchronous motor is highly suitable on electric motor car and the hybrid power truck system at present; Control requires very accurate to permagnetic synchronous motor; In the permanent-magnet synchronous control system; Not only require motor under various complex environments, to work, and very high to corner, rotating speed, the requirement of torque control precision of motor, therefore require the rotor-position signal of motor is detected and controls.
For accurate detection rotor position signalling, just must when resolver is installed, carry out initial position and proofread and correct.Mechanical alignment pin or positioning spigot are adopted in the bearing calibration of present most of electrical machinery plants, or adopt special devices to do rotary transformer initial position and demarcate, and these locate modes have increased operation and cost.Do not proofread and correct if when resolver is installed, do not consider earlier initial position, and carry out from dynamic(al) correction, then can save this part cost through electric machine control system.
Summary of the invention
The objective of the invention is to provides a kind of method that becomes initial position of revolving from dynamic(al) correction through letting the motor stator electric current produce the mode of directed magnetic vector.
Realize that this purpose can be through following scheme: a kind of rotary transformer initial position signal autocorrection method, it is characterized in that, said method comprising the steps of:
(1) through the given stator three-phase voltage of input, makes motor stator A phase, B phase, C phase circulating current respectively, produce the stator magnet vector of fixed-direction;
(2) through the stator magnet vector of field orientation generation with the dead in line of A phase coil, rotor is dragged to an equilbrium position, and supposes that this moment, the rotor-position electrical degree was 0 degree, this value is the test initial value;
(3) be worth θ to resolver rotor absolute position through the resolver decoding chip on the electric machine controller
AParse, be transferred to the controller core chip centroid to angle value through data/address bus then, carry out analyzing and processing, because the test initial value is 0 degree, then with θ
A-0 ° value deposits in the controller internal register, θ
ABe this time measure revolve the change initial position;
(4) repeating step (2), (3); And select to produce respectively with B mutually with the stator magnet vector of C phase axis coincidence; Make its test initial value be respectively 120 degree and 240 degree, and then be worth θ to resolver rotor absolute position through the resolver decoding chip on the electric machine controller
B, θ
CParse, measurement result is deducted test respectively ask average theta o again behind the initial value, and will final mean value θ o deposit internal drive in and write down the motor electrical degree and initially install in the nonvolatile memories such as EEPROM of phase place;
(5) in afterwards the Electric Machine Control program, when needs call the motor rotor position angle, just put angle value and deduct θ with the current displacement of revolving of reading
o, just obtained the current motor rotor position angle, also just realized revolving the change initial position from dynamic(al) correction.
The invention has the advantages that:
(1) can revolve the change initial position angle from dynamic(al) correction, practice thrift the manual cost of proofreading and correct;
(2) adopt repeatedly sampling, the mode that multi-angle is averaged obtains revolving and becomes the initial position angle, can eliminate the part measure error like this, improves certainty of measurement.
Description of drawings
Fig. 1, revolve and become the automatic correcting process figure of initial position.
Fig. 2, stator magnet vector oriented sketch map.
Embodiment
Below in conjunction with Figure of description technical scheme of the present invention is done further explain.
At first produce the stator magnet vector of fixed-direction according to the field orientation control method; Through the given motor stator A 10A that communicates that makes respectively of stator three-phase voltage, B communicates-5A, and C communicates-electric current of 5A, thus produce the directional magnetic field that coincides with stator A;
Specifically as shown in Figure 2.
Stator is dragged to an equilbrium position through the magnetic vector of field orientation generation with the dead in line of A phase coil with rotor, and supposes that this moment, the rotor-position electrical degree was 0 degree, and this value is the test initial value;
Revolving on the electric machine controller becomes decoding chip AD1205 resolver rotor absolute position value θ
AParse, be transferred to controller core chip centroid DSP2407 to angle value through data/address bus then, carry out analyzing and processing.Because the test initial value is 0 degree, then with θ
A-0 ° value deposits in the controller internal register, θ
ABe this time measure revolve the change initial position;
Repeated for the 2nd, 3 steps, select to produce respectively with B mutually with the stator magnet vector of C phase axis coincidence, make the test initial value of rotor be respectively 120 and spend and 240 spend, and then carry out the absolute position angular detection, with testing result θ
BAnd θ
CDeduct the test initial value respectively, ask three results on average again, and with final mean value θ
oDepositing internal drive record motor electrical degree in initially installs in the nonvolatile memories such as EEPROM of phase place;
In the Electric Machine Control program afterwards, when needs call the motor rotor position angle, just put angle value and deduct θ with the current displacement of revolving of reading
o, just obtained the current motor rotor position angle, also just realized revolving the change initial position from dynamic(al) correction.
Claims (1)
1. a rotary transformer initial position signal autocorrection method is characterized in that, said method comprising the steps of:
(1) through the given stator three-phase voltage of input, makes motor stator A phase, B phase, C phase circulating current respectively, produce the stator magnet vector of fixed-direction;
(2) through the stator magnet vector of field orientation generation with the dead in line of A phase coil, rotor is dragged to an equilbrium position, and supposes that this moment, the rotor-position electrical degree was 0 degree, this value is the test initial value;
(3) be worth θ to resolver rotor absolute position through the resolver decoding chip on the electric machine controller
AParse, be transferred to the controller core chip centroid to angle value through data/address bus then, carry out analyzing and processing, because the test initial value is 0 degree, then with θ
A-0 ° value deposits in the controller internal register, θ
ABe the rotary transformer initial position of this time measuring;
(4) repeating step (2), (3); And select to produce respectively with B mutually with the stator magnet vector of C phase axis coincidence; Make its test initial value be respectively 120 degree and 240 degree, and then be worth θ to resolver rotor absolute position through the resolver decoding chip on the electric machine controller
B, θ
CParse, with θ
BAnd θ
CDeduct 120 degree and 240 degree respectively, again gained result and θ
A-0 ° of θ that averages together
o, and with said mean value θ
oDepositing internal drive record motor electrical degree in initially installs in the EEPROM nonvolatile memory of phase place;
(5) in afterwards the Electric Machine Control program, when needs call the motor rotor position angle, just deduct said mean value θ with the current resolver position angle value that reads
o, just obtained the current motor rotor position angle, just realized that also rotary transformer initial position is from dynamic(al) correction.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102983292A CN101924514B (en) | 2010-09-30 | 2010-09-30 | Rotary transformer initial position signal autocorrection method |
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| CN2010102983292A CN101924514B (en) | 2010-09-30 | 2010-09-30 | Rotary transformer initial position signal autocorrection method |
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| CN101924514A CN101924514A (en) | 2010-12-22 |
| CN101924514B true CN101924514B (en) | 2012-07-04 |
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| CN103178681B (en) * | 2011-12-24 | 2015-07-29 | 大洋电机新动力科技有限公司 | A kind of motor entity with the initial installation deviation information of rotor-position sensor and initial installation deviation information measuring method thereof |
| KR101829926B1 (en) * | 2012-01-02 | 2018-02-19 | 현대모비스 주식회사 | Position error compensation method of drive motor for vehicle |
| CN102801377B (en) * | 2012-08-14 | 2014-07-16 | 安徽巨一自动化装备有限公司 | Simple position sensor fine-adjustment system and adjustment method thereof |
| CN102778252B (en) * | 2012-08-14 | 2014-10-29 | 安徽巨一自动化装备有限公司 | Automatic position sensor fine adjustment system and adjustment method |
| CN102983803A (en) * | 2012-11-12 | 2013-03-20 | 中冶南方（武汉）自动化有限公司 | Initial positioning method for permanent-magnet synchronous motor |
| CN104079215B (en) * | 2013-03-26 | 2016-06-01 | 上海电驱动股份有限公司 | The accurate Detection and adjustment method of automobile permanent magnet synchronous motor initial position of rotor |
| CN103560724B (en) * | 2013-09-27 | 2014-12-17 | 南车株洲电力机车研究所有限公司 | Method for determining initial position of synchronous motor |
| TWI571043B (en) * | 2014-01-27 | 2017-02-11 | 山葉發動機股份有限公司 | Motor control device and correction data generation method in the same device |
| CN104660118B (en) * | 2015-03-11 | 2017-04-12 | 南车株洲电力机车研究所有限公司 | Zero calculation method for permanent magnet synchronous motor rotating transformer |
| CN104796051B (en) * | 2015-04-17 | 2017-08-01 | 天津大学 | Rotary transformer linear transformation method and converter based on FPGA |
| CN106533277B (en) * | 2016-12-28 | 2019-04-09 | 北京新能源汽车股份有限公司 | A kind of motor rotation becomes the method for calibration and device of dead-center position |
| CN107834934B (en) * | 2017-12-01 | 2020-05-08 | 重庆长安汽车股份有限公司 | Electric automobile and automatic correction method and system for initial position of rotary transformer of electric automobile |
| CN110739895B (en) * | 2018-07-18 | 2021-08-06 | 郑州宇通客车股份有限公司 | Motor control method and device based on rotary transformer initial position |
| CN111146979A (en) * | 2018-11-02 | 2020-05-12 | 宝沃汽车（中国）有限公司 | Initial angle correction method and device of motor rotor and electric vehicle |
| CN111200387B (en) * | 2018-11-16 | 2021-12-21 | 郑州宇通客车股份有限公司 | Method and device for correcting initial electrical angle of motor rotating transformer of new energy automobile |
| CN114070151A (en) * | 2020-07-30 | 2022-02-18 | 广汽埃安新能源汽车有限公司 | Method, device and system for detecting rotary zero-bit value of permanent magnet synchronous motor |
| CN113328670B (en) * | 2021-05-11 | 2023-06-09 | 江苏交科能源科技发展有限公司 | Zero adjustment method for rotary transformer of permanent magnet motor |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101110559B (en) * | 2006-07-20 | 2011-10-12 | 比亚迪股份有限公司 | Magneto synchronous generator controlling system used for hybrid vehicle |
| CN101777861B (en) * | 2010-02-10 | 2012-07-11 | 株洲南车时代电气股份有限公司 | Initial positioning device of permanent synchronous motor |
| CN101814883B (en) * | 2010-03-29 | 2011-11-09 | 南京磁谷科技有限公司 | Method for detecting magnetic pole position of permanent magnet synchronous motor rotor based on displacement sensor |
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Application publication date: 20101222 Assignee: CHONGQING CHANGAN NEW ENERGY AUTOMOBILE TECHNOLOGY Co.,Ltd. Assignor: Chongqing Changan Automobile Co.,Ltd.|CHONGQING CHANG'AN NEW ENERGY AUTOMOBILE Co.,Ltd. Contract record no.: 2018500000018 Denomination of invention: Rotary transformer initial position signal autocorrection method Granted publication date: 20120704 License type: Exclusive License Record date: 20181121 |
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Effective date of registration: 20190104 Address after: 401133 room 208, 2 house, 39 Yonghe Road, Yu Zui Town, Jiangbei District, Chongqing Patentee after: CHONGQING CHANGAN NEW ENERGY AUTOMOBILE TECHNOLOGY Co.,Ltd. Address before: 400023, No. 260, Jianxin East Road, Jiangbei District, Chongqing Co-patentee before: CHONGQING CHANG'AN NEW ENERGY AUTOMOBILE Co.,Ltd. Patentee before: Chongqing Changan Automobile Co.,Ltd. |
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Address after: 401133 room 208, 2 house, 39 Yonghe Road, Yu Zui Town, Jiangbei District, Chongqing Patentee after: Deep Blue Automotive Technology Co.,Ltd. Address before: 401133 room 208, 2 house, 39 Yonghe Road, Yu Zui Town, Jiangbei District, Chongqing Patentee before: CHONGQING CHANGAN NEW ENERGY AUTOMOBILE TECHNOLOGY Co.,Ltd. |
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