A new design approach for reduction of force ripple in permanent magnet flux‐switching linear motor

Abstract To reduce the force ripple of the permanent magnet flux‐switching linear motor (PMFSLM), a new design approach is suggested by the authors. The detent force is redefined as the composite force of the thrust of the single action of permanent magnet and armature current. In the design approac...

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Main Authors: Zongsheng Zhang, Hao Wang, Hong Chen
Format: Article
Language:English
Published: Wiley 2023-09-01
Series:IET Electric Power Applications
Subjects:
Online Access:https://doi.org/10.1049/elp2.12329
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author Zongsheng Zhang
Hao Wang
Hong Chen
author_facet Zongsheng Zhang
Hao Wang
Hong Chen
author_sort Zongsheng Zhang
collection DOAJ
description Abstract To reduce the force ripple of the permanent magnet flux‐switching linear motor (PMFSLM), a new design approach is suggested by the authors. The detent force is redefined as the composite force of the thrust of the single action of permanent magnet and armature current. In the design approach, both the improved E‐shaped PMFSLM primary module and secondary contain two units. The magnetisation direction of the permanent magnet in the two primary module units is opposite, but the two units share the same armature coil. The two units design eliminates the even number harmonics of the phase back‐EMF and decreases the period of detent force. Through the design of the skewed secondary, the detent force is eliminated completely, and simultaneously, the odd‐order harmonics are significantly weakened. The results of finite element analysis (FEA) show that the force ripple of the PMFSLM decreases significantly. Prototype experimental results are in good agreement with FEA results. The study results verify the effectiveness and practicability of the new design approach of PMFSLM for reducing the force ripple.
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spelling doaj.art-33c439d4a6b147c288ca0f61754697082023-09-09T04:50:53ZengWileyIET Electric Power Applications1751-86601751-86792023-09-011791148115810.1049/elp2.12329A new design approach for reduction of force ripple in permanent magnet flux‐switching linear motorZongsheng Zhang0Hao Wang1Hong Chen2College of Electrical Engineering and Automation Shandong University of Science and Technology Qingdao ChinaCollege of Electrical Engineering and Automation Shandong University of Science and Technology Qingdao ChinaCollege of Electrical Engineering and Automation Shandong University of Science and Technology Qingdao ChinaAbstract To reduce the force ripple of the permanent magnet flux‐switching linear motor (PMFSLM), a new design approach is suggested by the authors. The detent force is redefined as the composite force of the thrust of the single action of permanent magnet and armature current. In the design approach, both the improved E‐shaped PMFSLM primary module and secondary contain two units. The magnetisation direction of the permanent magnet in the two primary module units is opposite, but the two units share the same armature coil. The two units design eliminates the even number harmonics of the phase back‐EMF and decreases the period of detent force. Through the design of the skewed secondary, the detent force is eliminated completely, and simultaneously, the odd‐order harmonics are significantly weakened. The results of finite element analysis (FEA) show that the force ripple of the PMFSLM decreases significantly. Prototype experimental results are in good agreement with FEA results. The study results verify the effectiveness and practicability of the new design approach of PMFSLM for reducing the force ripple.https://doi.org/10.1049/elp2.12329linear motorspermanent magnet motors
spellingShingle Zongsheng Zhang
Hao Wang
Hong Chen
A new design approach for reduction of force ripple in permanent magnet flux‐switching linear motor
IET Electric Power Applications
linear motors
permanent magnet motors
title A new design approach for reduction of force ripple in permanent magnet flux‐switching linear motor
title_full A new design approach for reduction of force ripple in permanent magnet flux‐switching linear motor
title_fullStr A new design approach for reduction of force ripple in permanent magnet flux‐switching linear motor
title_full_unstemmed A new design approach for reduction of force ripple in permanent magnet flux‐switching linear motor
title_short A new design approach for reduction of force ripple in permanent magnet flux‐switching linear motor
title_sort new design approach for reduction of force ripple in permanent magnet flux switching linear motor
topic linear motors
permanent magnet motors
url https://doi.org/10.1049/elp2.12329
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