Design and analysis of concave‐core stator direct‐drive permanent magnet motor

Abstract To solve the problems mechanically caused by parallel direct‐drive permanent magnet motors (DD‐PMSM). This paper proposes a concave‐core stator direct‐drive permanent magnet motor (CCSDD‐PMSM) structure. In this study, an auxiliary yoke structure is proposed to optimise the magnetic circuit...

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Main Authors: Zeyu Liu, Bingyi Zhang, Yan Hu, Guihong Feng, Jiacheng Wu
Format: Article
Language:English
Published: Wiley 2023-09-01
Series:IET Electric Power Applications
Subjects:
Online Access:https://doi.org/10.1049/elp2.12332
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author Zeyu Liu
Bingyi Zhang
Yan Hu
Guihong Feng
Jiacheng Wu
author_facet Zeyu Liu
Bingyi Zhang
Yan Hu
Guihong Feng
Jiacheng Wu
author_sort Zeyu Liu
collection DOAJ
description Abstract To solve the problems mechanically caused by parallel direct‐drive permanent magnet motors (DD‐PMSM). This paper proposes a concave‐core stator direct‐drive permanent magnet motor (CCSDD‐PMSM) structure. In this study, an auxiliary yoke structure is proposed to optimise the magnetic circuit and analyse the cogging torque to achieve the minimum detent force. Based on the unit motor and combined with the magnetomotive force to analyse the symmetry of different winding distributions, the stability characteristics of the motor are studied. The magnetic field distribution of the motor load air gap is calculated using the finite element method. The contribution of different spatial order harmonics to the motor output torque is calculated using the Maxwell tensor method. The torque calculation expression of the CCSDD‐PMSM is given. Finally, an experimental prototype is made to verify the accuracy of the analysis in this paper.
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spelling doaj.art-d3bc4863154e40149e55fa0c2d73ca912023-09-09T04:50:54ZengWileyIET Electric Power Applications1751-86601751-86792023-09-011791182119610.1049/elp2.12332Design and analysis of concave‐core stator direct‐drive permanent magnet motorZeyu Liu0Bingyi Zhang1Yan Hu2Guihong Feng3Jiacheng Wu4School of Electrical Engineering Shenyang University of Technology Shenyang ChinaSchool of Electrical Engineering Shenyang University of Technology Shenyang ChinaSchool of Electrical Engineering Shenyang University of Technology Shenyang ChinaSchool of Electrical Engineering Shenyang University of Technology Shenyang ChinaSchool of Electrical Engineering Shenyang University of Technology Shenyang ChinaAbstract To solve the problems mechanically caused by parallel direct‐drive permanent magnet motors (DD‐PMSM). This paper proposes a concave‐core stator direct‐drive permanent magnet motor (CCSDD‐PMSM) structure. In this study, an auxiliary yoke structure is proposed to optimise the magnetic circuit and analyse the cogging torque to achieve the minimum detent force. Based on the unit motor and combined with the magnetomotive force to analyse the symmetry of different winding distributions, the stability characteristics of the motor are studied. The magnetic field distribution of the motor load air gap is calculated using the finite element method. The contribution of different spatial order harmonics to the motor output torque is calculated using the Maxwell tensor method. The torque calculation expression of the CCSDD‐PMSM is given. Finally, an experimental prototype is made to verify the accuracy of the analysis in this paper.https://doi.org/10.1049/elp2.12332AC motorspermanent magnet motorssynchronous motors
spellingShingle Zeyu Liu
Bingyi Zhang
Yan Hu
Guihong Feng
Jiacheng Wu
Design and analysis of concave‐core stator direct‐drive permanent magnet motor
IET Electric Power Applications
AC motors
permanent magnet motors
synchronous motors
title Design and analysis of concave‐core stator direct‐drive permanent magnet motor
title_full Design and analysis of concave‐core stator direct‐drive permanent magnet motor
title_fullStr Design and analysis of concave‐core stator direct‐drive permanent magnet motor
title_full_unstemmed Design and analysis of concave‐core stator direct‐drive permanent magnet motor
title_short Design and analysis of concave‐core stator direct‐drive permanent magnet motor
title_sort design and analysis of concave core stator direct drive permanent magnet motor
topic AC motors
permanent magnet motors
synchronous motors
url https://doi.org/10.1049/elp2.12332
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AT yanhu designandanalysisofconcavecorestatordirectdrivepermanentmagnetmotor
AT guihongfeng designandanalysisofconcavecorestatordirectdrivepermanentmagnetmotor
AT jiachengwu designandanalysisofconcavecorestatordirectdrivepermanentmagnetmotor