Influence of Rotor Design on Electromagnetic Performance in Interior Permanent Magnet Machines

Transi, Tommaso; Murataliyev, Mukhammed; Degano, Michele; Preci, Eraldo; Gerada, David; Gerada, Chris

Abstract

Nowadays, Interior Permanent Magnet Synchronous Machines (IPMSM) are widely adopted in various sectors such as automotive, railway or public transportation (e- buses, trams, etc.). Among the benefits that these machines present, they offer a number of design degrees of freedom. Furthermore, they can operate over a wide speed range, with a good flux weakening capability. One of the main challenges is to define a complete geometrical parametrization, in order to identify an optimal structure that satisfies the design requirements. In this paper, a detailed analysis of the rotor structure is carried out looking at understanding the effects of the geometrical parameters on key performance indexes (e.g. flux density harmonic content, torque capability, torque ripple, etc.). Based on the preliminary analysis, an optimization procedure is implemented for the design of a Nabla-shaped rotor to satisfy the electromechanical performance of a case study traction motor. The results are showing how an optimal machine can be designed with a reduced amount of permanent magnet, by optimizing the rotor structure.

Citation

Transi, T., Murataliyev, M., Degano, M., Preci, E., Gerada, D., & Gerada, C. (2020, October). Influence of Rotor Design on Electromagnetic Performance in Interior Permanent Magnet Machines. Presented at IECON 2020 - 46th Annual Conference of the IEEE Industrial Electronics Society, Singapore, Singapore

• Presentation Conference Type: Edited Proceedings
• Conference Name: IECON 2020 - 46th Annual Conference of the IEEE Industrial Electronics Society
• Start Date: Oct 18, 2020
• End Date: Oct 21, 2020
• Acceptance Date: Jul 15, 2020
• Online Publication Date: Nov 18, 2020
• Publication Date: Oct 18, 2020
• Deposit Date: Feb 26, 2021
• Publicly Available Date: Feb 26, 2021
• Publisher: Institute of Electrical and Electronics Engineers
• Pages: 1021-1026
• Series Title: IEEE Industrial Electronics Society. Annual Conference. Proceedings
• Series Number: 46
• Series ISSN: 1553-572X
• ISBN: 9781728154152
• DOI: https://doi.org/10.1109/iecon43393.2020.9255237
• Public URL: https://nottingham-repository.worktribe.com/output/5352513
• Publisher URL: https://ieeexplore-ieee-org/document/9255237
• Additional Information: © 2020 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.