Design and analysis of a new flux-intensifying permanent magnet brushless motor with multilayer flux barriers

This paper proposes a new flux-intensifying permanent magnet brushless motor for potential application in electric vehicles. The key of the proposed motor is to adopt the concept of flux-intensifying effect, thus the preferable flux-weakening ability and extended speed range can be achieved. The usa...

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Main Authors: Shen Yang, Xiaoyong Zhu, Zixuan Xiang, Deyang Fan, Wenye Wu, Jianing Yin
Format: Article
Language:English
Published: AIP Publishing LLC 2017-05-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/1.4974061
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spelling doaj-9a7849ad2bb346be97c3a4aa5eb9b8192020-11-24T22:32:14ZengAIP Publishing LLCAIP Advances2158-32262017-05-0175056628056628-610.1063/1.4974061113791ADVDesign and analysis of a new flux-intensifying permanent magnet brushless motor with multilayer flux barriersShen Yang0Xiaoyong Zhu1Zixuan Xiang2Deyang Fan3Wenye Wu4Jianing Yin5School 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, ChinaSchool of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, ChinaSchool of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, ChinaThis paper proposes a new flux-intensifying permanent magnet brushless motor for potential application in electric vehicles. The key of the proposed motor is to adopt the concept of flux-intensifying effect, thus the preferable flux-weakening ability and extended speed range can be achieved. The usage of segmented and relatively thinner permanent magnet (PM) in the proposed motor contributes to the increase of d-axis inductance Ld. In addition, the multilayer flux barriers along q-axis flux path will effectively decrease q-axis inductance Lq. As a result, the unique feature of Ld>Lq can be obtained, which is beneficial to extending the speed range of the proposed motor. Furthermore, the flux-intensifying effect can reduce the risk of irreversible demagnetization in PMs. The electromagnetic performances of the proposed motor are analyzed and investigated in details by using the finite element methods, which demonstrate the excellent flux-weakening capability and wide speed range can be achieved in the proposed FI-PMBL motor.http://dx.doi.org/10.1063/1.4974061
collection DOAJ
language English
format Article
sources DOAJ
author Shen Yang
Xiaoyong Zhu
Zixuan Xiang
Deyang Fan
Wenye Wu
Jianing Yin
spellingShingle Shen Yang
Xiaoyong Zhu
Zixuan Xiang
Deyang Fan
Wenye Wu
Jianing Yin
Design and analysis of a new flux-intensifying permanent magnet brushless motor with multilayer flux barriers
AIP Advances
author_facet Shen Yang
Xiaoyong Zhu
Zixuan Xiang
Deyang Fan
Wenye Wu
Jianing Yin
author_sort Shen Yang
title Design and analysis of a new flux-intensifying permanent magnet brushless motor with multilayer flux barriers
title_short Design and analysis of a new flux-intensifying permanent magnet brushless motor with multilayer flux barriers
title_full Design and analysis of a new flux-intensifying permanent magnet brushless motor with multilayer flux barriers
title_fullStr Design and analysis of a new flux-intensifying permanent magnet brushless motor with multilayer flux barriers
title_full_unstemmed Design and analysis of a new flux-intensifying permanent magnet brushless motor with multilayer flux barriers
title_sort design and analysis of a new flux-intensifying permanent magnet brushless motor with multilayer flux barriers
publisher AIP Publishing LLC
series AIP Advances
issn 2158-3226
publishDate 2017-05-01
description This paper proposes a new flux-intensifying permanent magnet brushless motor for potential application in electric vehicles. The key of the proposed motor is to adopt the concept of flux-intensifying effect, thus the preferable flux-weakening ability and extended speed range can be achieved. The usage of segmented and relatively thinner permanent magnet (PM) in the proposed motor contributes to the increase of d-axis inductance Ld. In addition, the multilayer flux barriers along q-axis flux path will effectively decrease q-axis inductance Lq. As a result, the unique feature of Ld>Lq can be obtained, which is beneficial to extending the speed range of the proposed motor. Furthermore, the flux-intensifying effect can reduce the risk of irreversible demagnetization in PMs. The electromagnetic performances of the proposed motor are analyzed and investigated in details by using the finite element methods, which demonstrate the excellent flux-weakening capability and wide speed range can be achieved in the proposed FI-PMBL motor.
url http://dx.doi.org/10.1063/1.4974061
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