Analysis and Design of a Compound-Structure Permanent-Magnet Motor for Hybrid Electric Vehicles

Qiwei Xu, Jing Sun, Dewen Tian, Wenjuan Wang, Jianshu Huang and Shumei Cui
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Qiwei Xu: State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China
Jing Sun: State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China
Dewen Tian: China North Vehicle Research Institute, Beijing 100072, China
Wenjuan Wang: State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China
Jianshu Huang: State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China
Shumei Cui: Department of Electrical Engineering, Harbin Institute of Technology, Harbin 150080, China

Energies, 2018, vol. 11, issue 8, 1-19

Abstract: On the basis of the excellent driving force demand of hybrid electric vehicles (HEVs), this paper studies the torque property of the compound-structure permanent-magnet motor (CSPM motor) used for HEVs, which is influenced by magnetic field oversaturation and variable nonlinear parameters. Firstly, the system configuration of HEVs based on CSPM motor and its working mode are introduced. Next, the state equation of CSPM motor in three-phase stationary coordinate system is proposed in order to investigate its torque performance; then, the factors affecting the output torque are gained. Finite element method (FEM)-based electromagnetic parameters analysis and design is carried out, to raise the output torque and reduce the torque ripple of CSPM motor. Besides, optimized design parameters are used to establish the FEM model, and the simulation results of electromagnetic performances for the CSPM motor before and after optimization are given to verify the rationality of optimization.

Keywords: hybrid electric vehicles; compound-structure permanent-magnet motor; torque property; working mode; state equation; parameters analysis and design (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
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