Multi-physics Design Optimisation of PM-assisted Synchronous Reluctance Motor for Traction Application

Al-Ani, Mahir; Walker, Adam; Vakil, Gaurang; Ramanathan, Ramkumar; Zou, Tianjie; La Rocca, Salvatore; La Rocca, Antonino; Gerada, David; Gerada, Chris; Paciura, Krzysztof; McQueen, Alastair

Abstract

Recently, the synchronous reluctance machine limits have been pushed toward meeting the requirements of traction applications. A skilled electromagnetic architecture of a synchronous reluctance machine with the help of permanent magnets can push the limits of power density and speed range to that of traction applications, however, the mechanical integrity of the rotor can still be in question. A traction application means large rotor diameter and high rotational speed, two criteria that makes a challenging design, in particular, mechanically. In this paper, the multi-physics design steps of a permanent magnets assisted synchronous reluctance motor for automotive application, have been presented. Firstly, the electromagnetic design following the size and thermal aspects and constrains has been conducted. Secondly, methods to reduce the mechanical stress has been explored and a bridged mechanical design has been adapted. Finally, thermal analysis of the machine has been conducted to ensure the thermal limits have been satisfied.

Citation

Al-Ani, M., Walker, A., Vakil, G., Ramanathan, R., Zou, T., La Rocca, S., …McQueen, A. (2019). Multi-physics Design Optimisation of PM-assisted Synchronous Reluctance Motor for Traction Application. . https://doi.org/10.1109/iecon.2019.8926697

• Conference Name: IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society
• Start Date: Oct 14, 2019
• End Date: Oct 17, 2019
• Acceptance Date: Jul 12, 2019
• Online Publication Date: Dec 9, 2019
• Publication Date: 2019-10
• Deposit Date: Feb 6, 2020
• Publicly Available Date: Feb 7, 2020
• Publisher: Institute of Electrical and Electronics Engineers
• ISBN: 9781728148786
• DOI: https://doi.org/10.1109/iecon.2019.8926697
• Keywords: Synchronous reluctance, PM assisted, Mechanical stress, Mechanical design, IPM, Traction application, Automotive application
• Public URL: https://nottingham-repository.worktribe.com/output/3909981
• Publisher URL: https://ieeexplore.ieee.org/document/8926697
• Additional Information: © 2019 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