Detent force suppression of permanent magnet linear synchronous motor based on a V‐shaped tooth‐slot structure
Abstract Given the existence of detent force, the positioning accuracy of permanent magnet linear synchronous motor (PMLSM) with an iron core worsens in its application in the field of the precision drive. To address this problem, a method is proposed to weaken the detent force of PMLSM with a V‐sha...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2023-04-01
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| Series: | IET Electric Power Applications |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/elp2.12282 |
| _version_ | 1797846711059611648 |
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| author | Zhiyong Lan Lifang Chen Xinhui Xiao Yuanjun Luo Meijun Deng Shangfeng Zhu |
| author_facet | Zhiyong Lan Lifang Chen Xinhui Xiao Yuanjun Luo Meijun Deng Shangfeng Zhu |
| author_sort | Zhiyong Lan |
| collection | DOAJ |
| description | Abstract Given the existence of detent force, the positioning accuracy of permanent magnet linear synchronous motor (PMLSM) with an iron core worsens in its application in the field of the precision drive. To address this problem, a method is proposed to weaken the detent force of PMLSM with a V‐shaped tooth‐slot structure. The models of the detent force, including the cogging force and end force, are established theoretically. The analytical expressions of cogging force and end force are obtained by analysing the ripple rule of the motor. Then, the tooth‐slot surface of the motor with the V‐shaped tooth‐slot structure conducts infinitesimal processing. The relationship between cogging force, end force, and the V‐shaped depth of the V‐shaped tooth‐slot PMLSM is deduced, respectively, using the integration method. Furthermore, Ansoft finite element simulation software Maxwell module is used to compare the conventional PMLSM, V‐shaped magnetic pole PMLSM, and V‐shaped tooth‐slot PMLSM. The comparison reveals that the V‐shaped tooth‐slot structure has the excellent characteristic of increasing the average value of thrust while reducing the ripple of thrust caused by detent force. Finally, prototype fabrication and experiments are conducted to verify the correctness and feasibility of the proposed method. |
| first_indexed | 2024-04-09T18:00:26Z |
| format | Article |
| id | doaj.art-b66cdec999cb43c3a7e33b35cc0100e9 |
| institution | Directory Open Access Journal |
| issn | 1751-8660 1751-8679 |
| language | English |
| last_indexed | 2024-04-09T18:00:26Z |
| publishDate | 2023-04-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Electric Power Applications |
| spelling | doaj.art-b66cdec999cb43c3a7e33b35cc0100e92023-04-14T08:15:50ZengWileyIET Electric Power Applications1751-86601751-86792023-04-0117453554610.1049/elp2.12282Detent force suppression of permanent magnet linear synchronous motor based on a V‐shaped tooth‐slot structureZhiyong Lan0Lifang Chen1Xinhui Xiao2Yuanjun Luo3Meijun Deng4Shangfeng Zhu5The College of Automation and Electronic Information Xiangtan University Xiangtan ChinaThe College of Automation and Electronic Information Xiangtan University Xiangtan ChinaThe College of Automation and Electronic Information Xiangtan University Xiangtan ChinaThe College of Automation and Electronic Information Xiangtan University Xiangtan ChinaChangsha Epoch Direct Drive Technology Co., Ltd. Changsha ChinaChangsha Epoch Direct Drive Technology Co., Ltd. Changsha ChinaAbstract Given the existence of detent force, the positioning accuracy of permanent magnet linear synchronous motor (PMLSM) with an iron core worsens in its application in the field of the precision drive. To address this problem, a method is proposed to weaken the detent force of PMLSM with a V‐shaped tooth‐slot structure. The models of the detent force, including the cogging force and end force, are established theoretically. The analytical expressions of cogging force and end force are obtained by analysing the ripple rule of the motor. Then, the tooth‐slot surface of the motor with the V‐shaped tooth‐slot structure conducts infinitesimal processing. The relationship between cogging force, end force, and the V‐shaped depth of the V‐shaped tooth‐slot PMLSM is deduced, respectively, using the integration method. Furthermore, Ansoft finite element simulation software Maxwell module is used to compare the conventional PMLSM, V‐shaped magnetic pole PMLSM, and V‐shaped tooth‐slot PMLSM. The comparison reveals that the V‐shaped tooth‐slot structure has the excellent characteristic of increasing the average value of thrust while reducing the ripple of thrust caused by detent force. Finally, prototype fabrication and experiments are conducted to verify the correctness and feasibility of the proposed method.https://doi.org/10.1049/elp2.12282AC motorsdesignelectric machine analysis computing |
| spellingShingle | Zhiyong Lan Lifang Chen Xinhui Xiao Yuanjun Luo Meijun Deng Shangfeng Zhu Detent force suppression of permanent magnet linear synchronous motor based on a V‐shaped tooth‐slot structure IET Electric Power Applications AC motors design electric machine analysis computing |
| title | Detent force suppression of permanent magnet linear synchronous motor based on a V‐shaped tooth‐slot structure |
| title_full | Detent force suppression of permanent magnet linear synchronous motor based on a V‐shaped tooth‐slot structure |
| title_fullStr | Detent force suppression of permanent magnet linear synchronous motor based on a V‐shaped tooth‐slot structure |
| title_full_unstemmed | Detent force suppression of permanent magnet linear synchronous motor based on a V‐shaped tooth‐slot structure |
| title_short | Detent force suppression of permanent magnet linear synchronous motor based on a V‐shaped tooth‐slot structure |
| title_sort | detent force suppression of permanent magnet linear synchronous motor based on a v shaped tooth slot structure |
| topic | AC motors design electric machine analysis computing |
| url | https://doi.org/10.1049/elp2.12282 |
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