Research on Cogging Force Suppression for Toroidal PMLSM Based on Disturbance Observer
For a new type of toroidal permanent magnet linear motor(TPMLSM), this paper analyzes the thrust fluctuation in the constant acceleration operation of the motor from the Angle of the cogging force of the linear motor. For the motor whose structure has been determined and processed, the structural pa...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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China Electrotechnical Society
2023-06-01
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| Series: | CES Transactions on Electrical Machines and Systems |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10032062 |
| _version_ | 1797755692018302976 |
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| author | Rongtao Zeng Jinghong Zhao Sinian Yan Yinhao Mao |
| author_facet | Rongtao Zeng Jinghong Zhao Sinian Yan Yinhao Mao |
| author_sort | Rongtao Zeng |
| collection | DOAJ |
| description | For a new type of toroidal permanent magnet linear motor(TPMLSM), this paper analyzes the thrust fluctuation in the constant acceleration operation of the motor from the Angle of the cogging force of the linear motor. For the motor whose structure has been determined and processed, the structural parameters of the motor cannot be changed, and its performance cannot be improved from the perspective of the motor body. Therefore, this paper tries to consider the influence of the cogging force on the normal operation of the motor from the perspective of control. In this paper, starting from the body structure of motor, first on the annular linear motor of the cogging force characteristics were extracted, and its expression is obtained by Fourier decomposition, then investigated considering the cogging force and does not consider the cogging force control of motor model, it can be seen that the control performance deteriorates significantly after considering cogging force of the motor, and the acceleration fluctuation increases significantly during the operation of the motor. On this basis, disturbance observation algorithm is introduced, and feedforward compensation is carried out by extracting the characteristic values of the disturbance model. The results show that the disturbance observer can suppress the thrust fluctuation caused by the motor cogging force to a large extent, and it can reduce the peak-to-peak value of the thrust fluctuation by more than 85% during the motor acceleration operation. |
| first_indexed | 2024-03-12T17:50:51Z |
| format | Article |
| id | doaj.art-bc52ef8409fe40719303df264dbff8e7 |
| institution | Directory Open Access Journal |
| issn | 2096-3564 2837-0325 |
| language | English |
| last_indexed | 2024-03-12T17:50:51Z |
| publishDate | 2023-06-01 |
| publisher | China Electrotechnical Society |
| record_format | Article |
| series | CES Transactions on Electrical Machines and Systems |
| spelling | doaj.art-bc52ef8409fe40719303df264dbff8e72023-08-03T08:55:52ZengChina Electrotechnical SocietyCES Transactions on Electrical Machines and Systems2096-35642837-03252023-06-017218719210.30941/CESTEMS.2023.00017Research on Cogging Force Suppression for Toroidal PMLSM Based on Disturbance ObserverRongtao Zeng0Jinghong Zhao1Sinian Yan2 Yinhao Mao3Electrical Engineering Department, Naval University of Engineering, Wuhan, ChinaElectrical Engineering Department, Naval University of Engineering, Wuhan, ChinaElectrical Engineering Department, Naval University of Engineering, Wuhan, ChinaElectrical Engineering Department, Naval University of Engineering, Wuhan, ChinaFor a new type of toroidal permanent magnet linear motor(TPMLSM), this paper analyzes the thrust fluctuation in the constant acceleration operation of the motor from the Angle of the cogging force of the linear motor. For the motor whose structure has been determined and processed, the structural parameters of the motor cannot be changed, and its performance cannot be improved from the perspective of the motor body. Therefore, this paper tries to consider the influence of the cogging force on the normal operation of the motor from the perspective of control. In this paper, starting from the body structure of motor, first on the annular linear motor of the cogging force characteristics were extracted, and its expression is obtained by Fourier decomposition, then investigated considering the cogging force and does not consider the cogging force control of motor model, it can be seen that the control performance deteriorates significantly after considering cogging force of the motor, and the acceleration fluctuation increases significantly during the operation of the motor. On this basis, disturbance observation algorithm is introduced, and feedforward compensation is carried out by extracting the characteristic values of the disturbance model. The results show that the disturbance observer can suppress the thrust fluctuation caused by the motor cogging force to a large extent, and it can reduce the peak-to-peak value of the thrust fluctuation by more than 85% during the motor acceleration operation.https://ieeexplore.ieee.org/document/10032062tpmlsmcogging forceperturbation observerthrust fluctuation |
| spellingShingle | Rongtao Zeng Jinghong Zhao Sinian Yan Yinhao Mao Research on Cogging Force Suppression for Toroidal PMLSM Based on Disturbance Observer CES Transactions on Electrical Machines and Systems tpmlsm cogging force perturbation observer thrust fluctuation |
| title | Research on Cogging Force Suppression for Toroidal PMLSM Based on Disturbance Observer |
| title_full | Research on Cogging Force Suppression for Toroidal PMLSM Based on Disturbance Observer |
| title_fullStr | Research on Cogging Force Suppression for Toroidal PMLSM Based on Disturbance Observer |
| title_full_unstemmed | Research on Cogging Force Suppression for Toroidal PMLSM Based on Disturbance Observer |
| title_short | Research on Cogging Force Suppression for Toroidal PMLSM Based on Disturbance Observer |
| title_sort | research on cogging force suppression for toroidal pmlsm based on disturbance observer |
| topic | tpmlsm cogging force perturbation observer thrust fluctuation |
| url | https://ieeexplore.ieee.org/document/10032062 |
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