Rotor pole optimal design of double-layer interior permanent magnet machines for electric vehicle

被引：0

作者：

Li Q. ^{[1
,2
]}

Sun C.-X. ^{[1
,3
]}

Fan T. ^{[1
,2
]}

Wen X.-H. ^{[1
,2
]}

Li Y. ^{[1
,2
]}

机构：

[1] Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing

[2] University of Chinese Academy of Sciences, Beijing

[3] Tianjin Zhongke Huarui Electrical Technology Development Co., Ltd., Tianjin

来源：

Dianji yu Kongzhi Xuebao/Electric Machines and Control | 2020年 / 24卷 / 09期

关键词：

Air gap flux density; Core losses; Double-layer magnet; Fringe effect of pole-arc; Harmonic analysis; Interior permanent magnet machine;

D O I：

10.15938/j.emc.2020.09.007

中图分类号：

学科分类号：

摘要：

Aiming at the error between the traditional model and the real model for no load air gap flux density waveform of double-layer interior permanent magnet(IPM)machines, an improved analytical method of no load air gap flux density for double-layer IPM machines was proposed, considering the fringe effect of air gap flux density waveform. Comparing with the traditional method, the proposed method improves the computation accuracy of air gap flux density which is validated by the finite element analysis(FEA).Tooth filter coefficient and yoke filter coefficient were used to describe the relationship of the tooth flux density and the yoke flux density to the air gap flux density. Based on the core losses formula, a stator harmonic iron core losses coefficient was introduced, and rotor pole was optimized by the proposed method to minimize stator core losses, with fixed fundamental amplitude of no-load air gap flux density. The performance under several working conditions and no-load stator core losses of the optimal motor are compared with the results of the benchmark motor by FEA, and validate the optimization approach. © 2020, Harbin University of Science and Technology Publication. All right reserved.

引用

页码：56 / 64

页数：8

共 21 条

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