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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Main Authors: Jing Li, Xuzhen Huang, Bo Zhou, Yansong Liu, Zheng Wang
Format: Article
Language:English
Published: MDPI AG 2021-12-01
Series:Symmetry
Subjects:
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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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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AT xuzhenhuang researchonsegmentedprimaryconsequentpolepermanentmagnetlinearsynchronousmotorwithsymmetricandperiodicendforce
AT bozhou researchonsegmentedprimaryconsequentpolepermanentmagnetlinearsynchronousmotorwithsymmetricandperiodicendforce
AT yansongliu researchonsegmentedprimaryconsequentpolepermanentmagnetlinearsynchronousmotorwithsymmetricandperiodicendforce
AT zhengwang researchonsegmentedprimaryconsequentpolepermanentmagnetlinearsynchronousmotorwithsymmetricandperiodicendforce