An Online Position Error Correction Method for Sensorless Control of Permanent Magnet Synchronous Machine With Parameter Mismatch
To eliminate the influence of parameter mismatch for fundamental model based sensorless methods, an effective online position error correction method is proposed for permanent magnet synchronous machines in this paper. Based on the derived position error mechanism, i.e. the error varies proportional...
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IEEE
2021-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/9551990/ |
| _version_ | 1818214361092587520 |
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| author | T. Y. Liu Z. Q. Zhu B. Shuang Z. Y. Wu David A. Stone Martin P. Foster |
| author_facet | T. Y. Liu Z. Q. Zhu B. Shuang Z. Y. Wu David A. Stone Martin P. Foster |
| author_sort | T. Y. Liu |
| collection | DOAJ |
| description | To eliminate the influence of parameter mismatch for fundamental model based sensorless methods, an effective online position error correction method is proposed for permanent magnet synchronous machines in this paper. Based on the derived position error mechanism, i.e. the error varies proportionally to the <italic>dq</italic>-axis currents, the proposed method injects a sinusoidal current signal with a small amplitude and low frequency into the <inline-formula> <tex-math notation="LaTeX">$d$ </tex-math></inline-formula>- or <inline-formula> <tex-math notation="LaTeX">$q$ </tex-math></inline-formula>-axis current for a short period. During injection, the corresponding sinusoidal response for current injection can be acquired from the estimated speed of the sensorless position observer. It is found that the amplitude of the response in the estimated speed decreases as the parameter mismatch reduces, and eventually reaches a minimum if there is no parameter mismatch. Thus, by applying the least mean square (LMS) algorithm, the amplitude of the response in the estimated speed can be minimised as the parameters are adaptively adjusted to the actual values, and then the position error can be corrected. The proposed method is validated through experiments on a permanent magnet generator drive system. |
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| format | Article |
| id | doaj.art-ce8efd4b45764b94af19f7ea282c6d1d |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-12T06:18:57Z |
| publishDate | 2021-01-01 |
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| spelling | doaj.art-ce8efd4b45764b94af19f7ea282c6d1d2022-12-22T00:34:57ZengIEEEIEEE Access2169-35362021-01-01913570813572210.1109/ACCESS.2021.31165159551990An Online Position Error Correction Method for Sensorless Control of Permanent Magnet Synchronous Machine With Parameter MismatchT. Y. Liu0Z. Q. Zhu1https://orcid.org/0000-0001-7175-3307B. Shuang2https://orcid.org/0000-0001-8647-0713Z. Y. Wu3David A. Stone4https://orcid.org/0000-0002-5770-3917Martin P. Foster5https://orcid.org/0000-0002-8565-0541Department of Electronic and Electrical Engineering, The University of Sheffield, Sheffield, U.K.Department of Electronic and Electrical Engineering, The University of Sheffield, Sheffield, U.K.Department of Electronic and Electrical Engineering, The University of Sheffield, Sheffield, U.K.Sheffield-Siemens Gamesa Renewable Energy (S2GRE) Research Centre, Sheffield, U.K.Department of Electronic and Electrical Engineering, The University of Sheffield, Sheffield, U.K.Department of Electronic and Electrical Engineering, The University of Sheffield, Sheffield, U.K.To eliminate the influence of parameter mismatch for fundamental model based sensorless methods, an effective online position error correction method is proposed for permanent magnet synchronous machines in this paper. Based on the derived position error mechanism, i.e. the error varies proportionally to the <italic>dq</italic>-axis currents, the proposed method injects a sinusoidal current signal with a small amplitude and low frequency into the <inline-formula> <tex-math notation="LaTeX">$d$ </tex-math></inline-formula>- or <inline-formula> <tex-math notation="LaTeX">$q$ </tex-math></inline-formula>-axis current for a short period. During injection, the corresponding sinusoidal response for current injection can be acquired from the estimated speed of the sensorless position observer. It is found that the amplitude of the response in the estimated speed decreases as the parameter mismatch reduces, and eventually reaches a minimum if there is no parameter mismatch. Thus, by applying the least mean square (LMS) algorithm, the amplitude of the response in the estimated speed can be minimised as the parameters are adaptively adjusted to the actual values, and then the position error can be corrected. The proposed method is validated through experiments on a permanent magnet generator drive system.https://ieeexplore.ieee.org/document/9551990/Extended electromotive force (E-EMF)least mean square (LMS)permanent magnet synchronous machine (PMSM)sensorless |
| spellingShingle | T. Y. Liu Z. Q. Zhu B. Shuang Z. Y. Wu David A. Stone Martin P. Foster An Online Position Error Correction Method for Sensorless Control of Permanent Magnet Synchronous Machine With Parameter Mismatch IEEE Access Extended electromotive force (E-EMF) least mean square (LMS) permanent magnet synchronous machine (PMSM) sensorless |
| title | An Online Position Error Correction Method for Sensorless Control of Permanent Magnet Synchronous Machine With Parameter Mismatch |
| title_full | An Online Position Error Correction Method for Sensorless Control of Permanent Magnet Synchronous Machine With Parameter Mismatch |
| title_fullStr | An Online Position Error Correction Method for Sensorless Control of Permanent Magnet Synchronous Machine With Parameter Mismatch |
| title_full_unstemmed | An Online Position Error Correction Method for Sensorless Control of Permanent Magnet Synchronous Machine With Parameter Mismatch |
| title_short | An Online Position Error Correction Method for Sensorless Control of Permanent Magnet Synchronous Machine With Parameter Mismatch |
| title_sort | online position error correction method for sensorless control of permanent magnet synchronous machine with parameter mismatch |
| topic | Extended electromotive force (E-EMF) least mean square (LMS) permanent magnet synchronous machine (PMSM) sensorless |
| url | https://ieeexplore.ieee.org/document/9551990/ |
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