A novel PM motor with hybrid PM excitation and asymmetric rotor structure for high torque performance

This paper proposes a novel permanent magnet (PM) motor for high torque performance, in which hybrid PM material and asymmetric rotor design are applied. The hybrid PM material is adopted to reduce the consumption of rare-earth PM because ferrite PM is assisted to enhance the torque production. Mean...

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Main Authors: Gaohong Xu, Guohai Liu, Xinxin Du, Fangfang Bian
Format: Article
Language:English
Published: AIP Publishing LLC 2017-05-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/1.4978400
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spelling doaj-42950348dc0542eb9c915dd1f78cf6572020-11-25T00:59:19ZengAIP Publishing LLCAIP Advances2158-32262017-05-0175056671056671-610.1063/1.4978400331791ADVA novel PM motor with hybrid PM excitation and asymmetric rotor structure for high torque performanceGaohong Xu0Guohai Liu1Xinxin Du2Fangfang Bian3School of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, ChinaSchool of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, ChinaSchool of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, ChinaSchool of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, ChinaThis paper proposes a novel permanent magnet (PM) motor for high torque performance, in which hybrid PM material and asymmetric rotor design are applied. The hybrid PM material is adopted to reduce the consumption of rare-earth PM because ferrite PM is assisted to enhance the torque production. Meanwhile, the rotor structure is designed to be asymmetric by shifting the surface-insert PM (SPM), which is used to improve the torque performance, including average torque and torque ripple. Moreover, the reasons for improvement of the torque performance are explained by evaluation and analysis of the performances of the proposed motor. Compared with SPM motor and V-type motor, the merit of high utilization ratio of rare-earth PM is also confirmed, showing that the proposed motor can offer higher torque density and lower torque ripple simultaneously with less consumption of rare-earth PM.http://dx.doi.org/10.1063/1.4978400
collection DOAJ
language English
format Article
sources DOAJ
author Gaohong Xu
Guohai Liu
Xinxin Du
Fangfang Bian
spellingShingle Gaohong Xu
Guohai Liu
Xinxin Du
Fangfang Bian
A novel PM motor with hybrid PM excitation and asymmetric rotor structure for high torque performance
AIP Advances
author_facet Gaohong Xu
Guohai Liu
Xinxin Du
Fangfang Bian
author_sort Gaohong Xu
title A novel PM motor with hybrid PM excitation and asymmetric rotor structure for high torque performance
title_short A novel PM motor with hybrid PM excitation and asymmetric rotor structure for high torque performance
title_full A novel PM motor with hybrid PM excitation and asymmetric rotor structure for high torque performance
title_fullStr A novel PM motor with hybrid PM excitation and asymmetric rotor structure for high torque performance
title_full_unstemmed A novel PM motor with hybrid PM excitation and asymmetric rotor structure for high torque performance
title_sort novel pm motor with hybrid pm excitation and asymmetric rotor structure for high torque performance
publisher AIP Publishing LLC
series AIP Advances
issn 2158-3226
publishDate 2017-05-01
description This paper proposes a novel permanent magnet (PM) motor for high torque performance, in which hybrid PM material and asymmetric rotor design are applied. The hybrid PM material is adopted to reduce the consumption of rare-earth PM because ferrite PM is assisted to enhance the torque production. Meanwhile, the rotor structure is designed to be asymmetric by shifting the surface-insert PM (SPM), which is used to improve the torque performance, including average torque and torque ripple. Moreover, the reasons for improvement of the torque performance are explained by evaluation and analysis of the performances of the proposed motor. Compared with SPM motor and V-type motor, the merit of high utilization ratio of rare-earth PM is also confirmed, showing that the proposed motor can offer higher torque density and lower torque ripple simultaneously with less consumption of rare-earth PM.
url http://dx.doi.org/10.1063/1.4978400
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