Torque Performance Enhancement of Flux-Switching Permanent Magnet Machines With Dual Sets of Magnet Arrangements

Chen, Canruo; Ren, Xiang; Li, Dawei; Qu, Ronghai; Liu, Kang; Zou, Tianjie

Abstract

Torque performance, especially torque density, is a critical performance index for the flux-switching permanent magnet (FSPM) machine that is attractive for the propulsion system. In this article, a novel FSPM machine with dual sets of magnet arrangements is proposed. With the novel topology, the torque density of the proposed machine is significantly improved due to much increased working harmonic contents of magnetomotive force (MMF). Moreover, the cogging torque is also inherently reduced, which makes the proposed machine a promising candidate in the FSPM machine family. The operating principle of the proposed FSPM machine is revealed based on the MMF-permeance model and the numerical finite element analysis (FEA). The effect of geometric parameters, such as magnet thickness, auxiliary tooth width, and rotor tooth width on the average torque and cogging torque, is also investigated. Finally, a prototype has been manufactured to validate the analysis conclusion. With experimental test results, it is demonstrated that the proposed topology can achieve 30.8% higher torque density, 79.4% lower cogging torque, and 15.6% higher power factor than the conventional counterpart.

Citation

Chen, C., Ren, X., Li, D., Qu, R., Liu, K., & Zou, T. (2021). Torque Performance Enhancement of Flux-Switching Permanent Magnet Machines With Dual Sets of Magnet Arrangements. IEEE Transactions on Transportation Electrification, 7(4), 2623-2634. https://doi.org/10.1109/TTE.2021.3063426

• Journal Article Type: Article
• Acceptance Date: Feb 18, 2021
• Online Publication Date: Mar 2, 2021
• Publication Date: 2021-12
• Deposit Date: Feb 23, 2022
• Publicly Available Date: Feb 25, 2022
• Journal: IEEE Transactions on Transportation Electrification
• Electronic ISSN: 2332-7782
• Publisher: Institute of Electrical and Electronics Engineers
• Peer Reviewed: Peer Reviewed
• Volume: 7
• Issue: 4
• Pages: 2623-2634
• DOI: https://doi.org/10.1109/TTE.2021.3063426
• Keywords: Electrical and Electronic Engineering; Energy Engineering and Power Technology; Transportation; Automotive Engineering
• Public URL: https://nottingham-repository.worktribe.com/output/7505507
• Publisher URL: https://ieeexplore.ieee.org/document/9367215
• Additional Information: © 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.