中国电机工程学报2021，Vol.41Issue(z1)：332-342,11.DOI:10.13334/j.0258-8013.pcsee.201088
电动汽车用模块化永磁游标电机的设计与分析
Design and Analysis of a Modular Permanent Magnet Vernier Machine for Electric Vehicle Application
摘要
Abstract
In this manuscript, a modular dual-rotor axial-flux permanent magnet vernier machine was designed and analyzed for the electric vehicle (EV) drive system, namely the dual-rotor axial-flux aligned permanent magnet vernier machine (DR-AFAPMVM). By adopting the dual-rotor topology, the machine can achieve higher torque density than the single-rotor one due to the modular multi-layer double flux filed design in both sides. In order to highlight the advantages of the proposed machine, two types of one-stator one-rotor vernier machines with surface-mounted and spoke-type magnets were compared firstly, which verified that spoke-type magnets had the so called "flux focusing" ability to increase air gap flux density. Compared to the above single air gap machine, the axial-direction electromagnetic force of rotor in the double-stator machine was largely reduced, which was significant for the axial-flux machine. Furthermore, in order to increase the electromagnetic torque density significantly, two types of three-stator two-rotor machines were designed, where comparative evaluation of the proposed DR-AFAPMVM and the dual-rotor axial-flux unaligned permanent magnet vernier machine (DR-AFUPMVM) were performed by using finite element analysis. In detail, a flux calibration coefficient considering magnet air gap leakage flux and radial direction leakage flux was proposed to contribute to the analytical model. Performance of the proposed machines was compared by both analytical method and finite element analysis, which verified the accuracy of the improved analytical method. Finally, the performance of DR-AFAPMVM, such as efficiency map, speedrange and operation points, was verified by simulation to illustrate its drive ability in EV application.关键词
轴向游标电机/双转子/磁通校正系数/辐条式排列Key words
axial-flux vernier machine/dual-rotor/flux calibration coefficient/spoke-type magnets分类
信息技术与安全科学引用本文复制引用
赵飞,杨矿,王毅..电动汽车用模块化永磁游标电机的设计与分析[J].中国电机工程学报,2021,41(z1):332-342,11.基金项目
国家自然科学基金项目(51707047) （51707047）
深圳市基础研究计划项目(JCYJ20180507181539943,JCYJ20190806142618203) （JCYJ20180507181539943,JCYJ20190806142618203）
广东省自然科学基金项目(2021A1515010754).Project Supported by National Natural Science Foundation of China(51877142) （2021A1515010754）
Basic Research Plan in Shenzhen City(JCYJ20180507181539943,JCYJ20190806142618203) （JCYJ20180507181539943,JCYJ20190806142618203）
Guangdong Basic and Applied Basic Research Foundation(2021A1515010754). （2021A1515010754）
