Research on Segmented Primary Consequent-Pole Permanent Magnet Linear Synchronous Motor with Symmetric and Periodic End Force
The end force of North-South permanent magnet linear synchronous motor (NS-PMLSM) fluctuates symmetrically with a period of one pole. Different from it, the end force’s fluctuation cycle of the consequent-pole permanent magnet linear synchronous motor (CP-PMLSM) is usually two poles and asymmetrical...
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MDPI AG
2021-12-01
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Series: | Symmetry |
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Online Access: | https://www.mdpi.com/2073-8994/13/12/2374 |
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author | Jing Li Xuzhen Huang Bo Zhou Yansong Liu Zheng Wang |
author_facet | Jing Li Xuzhen Huang Bo Zhou Yansong Liu Zheng Wang |
author_sort | Jing Li |
collection | DOAJ |
description | The end force of North-South permanent magnet linear synchronous motor (NS-PMLSM) fluctuates symmetrically with a period of one pole. Different from it, the end force’s fluctuation cycle of the consequent-pole permanent magnet linear synchronous motor (CP-PMLSM) is usually two poles and asymmetrical. Especially, within two half cycles, the end force presents complex asymmetric characteristics. In this paper, a piecewise function model of the end force of CP-PMLSM is established. Then a primary segmented design method for adjusting the period, symmetry and phase of the end force waveform is proposed. The two-segment and grouped four-segment modular distances are combined and matched to eliminate the odd-numbered harmonics of the end force and suppress the thrust ripple. A slotless primary core experimental platform and a slotted CP-PMLSM prototype are manufactured and tested to verify the theoretical analysis and simulation results. |
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format | Article |
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institution | Directory Open Access Journal |
issn | 2073-8994 |
language | English |
last_indexed | 2024-03-10T03:00:17Z |
publishDate | 2021-12-01 |
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series | Symmetry |
spelling | doaj.art-b4905936a2e4411181a02958d52deb7a2023-11-23T10:46:17ZengMDPI AGSymmetry2073-89942021-12-011312237410.3390/sym13122374Research on Segmented Primary Consequent-Pole Permanent Magnet Linear Synchronous Motor with Symmetric and Periodic End ForceJing Li0Xuzhen Huang1Bo Zhou2Yansong Liu3Zheng Wang4Department of Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaDepartment of Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaDepartment of Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaDepartment of Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaDepartment of Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaThe end force of North-South permanent magnet linear synchronous motor (NS-PMLSM) fluctuates symmetrically with a period of one pole. Different from it, the end force’s fluctuation cycle of the consequent-pole permanent magnet linear synchronous motor (CP-PMLSM) is usually two poles and asymmetrical. Especially, within two half cycles, the end force presents complex asymmetric characteristics. In this paper, a piecewise function model of the end force of CP-PMLSM is established. Then a primary segmented design method for adjusting the period, symmetry and phase of the end force waveform is proposed. The two-segment and grouped four-segment modular distances are combined and matched to eliminate the odd-numbered harmonics of the end force and suppress the thrust ripple. A slotless primary core experimental platform and a slotted CP-PMLSM prototype are manufactured and tested to verify the theoretical analysis and simulation results.https://www.mdpi.com/2073-8994/13/12/2374consequent-poleend forcemodelingperiodPMLSMsegment |
spellingShingle | Jing Li Xuzhen Huang Bo Zhou Yansong Liu Zheng Wang Research on Segmented Primary Consequent-Pole Permanent Magnet Linear Synchronous Motor with Symmetric and Periodic End Force Symmetry consequent-pole end force modeling period PMLSM segment |
title | Research on Segmented Primary Consequent-Pole Permanent Magnet Linear Synchronous Motor with Symmetric and Periodic End Force |
title_full | Research on Segmented Primary Consequent-Pole Permanent Magnet Linear Synchronous Motor with Symmetric and Periodic End Force |
title_fullStr | Research on Segmented Primary Consequent-Pole Permanent Magnet Linear Synchronous Motor with Symmetric and Periodic End Force |
title_full_unstemmed | Research on Segmented Primary Consequent-Pole Permanent Magnet Linear Synchronous Motor with Symmetric and Periodic End Force |
title_short | Research on Segmented Primary Consequent-Pole Permanent Magnet Linear Synchronous Motor with Symmetric and Periodic End Force |
title_sort | research on segmented primary consequent pole permanent magnet linear synchronous motor with symmetric and periodic end force |
topic | consequent-pole end force modeling period PMLSM segment |
url | https://www.mdpi.com/2073-8994/13/12/2374 |
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