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Comparison of Five Topologies for an Interior Permanent-Magnet Machine for a Hybrid Electric Vehicle

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3 Author(s)
Aimeng Wang ; Dept. of Electr. Eng., North China Electr. Power Univ., Baoding, China ; Yihua Jia ; Soong, W.L.

This paper presents a detailed comparison of the characteristics of five different rotor topologies for a distributed winding permanent-magnet (PM) machine for high-performance traction applications, including hybrid electric vehicles. These rotor topologies include one surface PM topology and four single-layer interior PM topologies (conventional, segmented, V shape, and shape). The performance characteristics, which include the back-electromotive force and its harmonics, magnet mass, iron loss, and ripple torque are compared and analyzed. A 7.5-kW interior permanent-magnetic (IPM) prototype using the conventional rotor topology was tested and the finite-element analysis results were compared. The aim of the paper is to give some guidance and reference for machine designers who are interested in IPM machine selection for high-performance traction applications.

Published in:

Magnetics, IEEE Transactions on  (Volume:47 ,  Issue: 10 )

Date of Publication:

Oct. 2011

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