The fourth order flux observer with in‐loop filter for permanent magnet synchronous motor sensorless control
Abstract Given the presence of various non‐ideal conditions, such as detection errors, converter non‐linearity, noise, and parameter mismatches, the flux model experiences the introduction of DC bias and high‐frequency harmonics, which subsequently deteriorate the accuracy of flux estimation. To dis...
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| Format: | Article |
| Language: | English |
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Wiley
2024-11-01
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| Series: | IET Electric Power Applications |
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| Online Access: | https://doi.org/10.1049/elp2.12489 |
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| author | Ziwen Wang Ciyong Luo Xiaoshu Jia Zihao Xing |
| author_facet | Ziwen Wang Ciyong Luo Xiaoshu Jia Zihao Xing |
| author_sort | Ziwen Wang |
| collection | DOAJ |
| description | Abstract Given the presence of various non‐ideal conditions, such as detection errors, converter non‐linearity, noise, and parameter mismatches, the flux model experiences the introduction of DC bias and high‐frequency harmonics, which subsequently deteriorate the accuracy of flux estimation. To dispose these issues, an improved non‐linear flux observer (FOIFFO) using a second‐order generalised integrator as an in‐loop filter is proposed for the sensorless control of permanent magnet synchronous motors. The observer demonstrates robust performance in eliminating DC bias and having a strong filtering ability for high‐order harmonics even without amplitude and phase compensation to accurately estimate the rotational speed and rotor position. The performance of the method is analysed by transfer functions and bode plots, while the discretisation method of the FOIFFO is proposed. Finally, the new sensorless control strategy is verified by synthesising the experimental results. |
| format | Article |
| id | doaj-art-468b05ae0f2941e1b5902c6ce8bb429d |
| institution | OA Journals |
| issn | 1751-8660 1751-8679 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Electric Power Applications |
| spelling | doaj-art-468b05ae0f2941e1b5902c6ce8bb429d2025-08-20T02:28:28ZengWileyIET Electric Power Applications1751-86601751-86792024-11-0118111421143410.1049/elp2.12489The fourth order flux observer with in‐loop filter for permanent magnet synchronous motor sensorless controlZiwen Wang0Ciyong Luo1Xiaoshu Jia2Zihao Xing3School of Electrical Engineering Chongqing University Chongqing ChinaSchool of Electrical Engineering Chongqing University Chongqing ChinaSchool of Materials Science and Engineering Chongqing University Chongqing ChinaSchool of Electrical Engineering Chongqing University Chongqing ChinaAbstract Given the presence of various non‐ideal conditions, such as detection errors, converter non‐linearity, noise, and parameter mismatches, the flux model experiences the introduction of DC bias and high‐frequency harmonics, which subsequently deteriorate the accuracy of flux estimation. To dispose these issues, an improved non‐linear flux observer (FOIFFO) using a second‐order generalised integrator as an in‐loop filter is proposed for the sensorless control of permanent magnet synchronous motors. The observer demonstrates robust performance in eliminating DC bias and having a strong filtering ability for high‐order harmonics even without amplitude and phase compensation to accurately estimate the rotational speed and rotor position. The performance of the method is analysed by transfer functions and bode plots, while the discretisation method of the FOIFFO is proposed. Finally, the new sensorless control strategy is verified by synthesising the experimental results.https://doi.org/10.1049/elp2.12489nonlinear estimationpermanent magnet motorsPI controlrotorssensorless machine control |
| spellingShingle | Ziwen Wang Ciyong Luo Xiaoshu Jia Zihao Xing The fourth order flux observer with in‐loop filter for permanent magnet synchronous motor sensorless control IET Electric Power Applications nonlinear estimation permanent magnet motors PI control rotors sensorless machine control |
| title | The fourth order flux observer with in‐loop filter for permanent magnet synchronous motor sensorless control |
| title_full | The fourth order flux observer with in‐loop filter for permanent magnet synchronous motor sensorless control |
| title_fullStr | The fourth order flux observer with in‐loop filter for permanent magnet synchronous motor sensorless control |
| title_full_unstemmed | The fourth order flux observer with in‐loop filter for permanent magnet synchronous motor sensorless control |
| title_short | The fourth order flux observer with in‐loop filter for permanent magnet synchronous motor sensorless control |
| title_sort | fourth order flux observer with in loop filter for permanent magnet synchronous motor sensorless control |
| topic | nonlinear estimation permanent magnet motors PI control rotors sensorless machine control |
| url | https://doi.org/10.1049/elp2.12489 |
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