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Title: Investigation of a 3D-magnetic flux PMSM with high torque density for electric vehicles
Authors: Chen, Hao
Demerdash, Nabeel A. O.
El-Refaie, Ayman M.
Guo, Youguang
Hua, Wei
Lee, Christopher Ho Tin
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2021
Source: Chen, H., Demerdash, N. A. O., El-Refaie, A. M., Guo, Y., Hua, W. & Lee, C. H. T. (2021). Investigation of a 3D-magnetic flux PMSM with high torque density for electric vehicles. IEEE Transactions On Energy Conversion, 37(2), 1442-1454.
Project: NRF-NRFF12-2020-0003
Journal: IEEE Transactions on Energy Conversion
Abstract: This paper presents an investigation of a 3D-magnetic flux permanent magnet synchronous motor (3D-MF PMSM) used for electric vehicle applications. The investigated 3D-MF PMSM consists of an integrated radial-flux and axial-flux structure. It has two radial-flux air-gaps and two axial-flux air-gaps, as well as a toroidal winding wound stator. The integrated structure helps to concentrate all the flux within the motor to maximize torque production. Moreover, there are no end-windings in this motor and all the stator windings effectively are used in torque production. A comprehensive performance evaluation, in terms of the back-electromotive force, average output torque, cogging torque, torque ripple, flux-weakening capability, etc., of the investigated 3D-MF PMSM is conducted. An interior PMSM is purposely included as a benchmark for comparison. The results show that compared to the benchmark interior PMSM, the original 3D-MF PMSM exhibits significantly improved torque density, higher power factor, and higher efficiency, but suffers from serious cogging torque and torque ripple. Accordingly, an unaligned arrangement is introduced to the 3D-MF PMSM. As a result, the cogging torque and torque ripple are significantly reduced.
ISSN: 0885-8969
DOI: 10.1109/TEC.2021.3137803
Schools: School of Electrical and Electronic Engineering 
Rights: © 2021 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The published version is available at:
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles

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