Homothetic Design in Synchronous Reluctance Machines and Effects on Torque Ripple

Murataliyev, Mukhammed; Degano, Michele; Di Nardo, Mauro; Bianchi, Nicola; Tessarolo, Alberto; Jara, Werner; Galea, Michael; Gerada, Chris

Abstract

This paper presents a novel design concept for Synchronous Reluctance (SynRel) machines aimed at reducing the torque ripple. Two general sizing approaches based on the homothetic scaling principle are defined and compared. An in depth analysis on the torque ripple, for a wide range of scaled geometries, evaluated by finite element, has been carried out at different operating conditions. A further analysis is performed on 4 scaled geometries that have been optimized starting from 4 random rotor geometries. It is shown that the main rotor geometrical variables converge to similar values for all scaled machines. The accuracy of the proposed model is then validated by comparing the FE simulated torque ripple waveforms with the experimental data carried out, for a range of operating conditions, on a machine prototype. The outcome of this work is a fast and accurate scaling technique for the preliminary design of SynRel machines with reduced torque ripple.

Citation

Murataliyev, M., Degano, M., Di Nardo, M., Bianchi, N., Tessarolo, A., Jara, W., …Gerada, C. (2021). Homothetic Design in Synchronous Reluctance Machines and Effects on Torque Ripple. IEEE Transactions on Energy Conversion, 36(3), 2195-2205. https://doi.org/10.1109/TEC.2020.3042441

• Journal Article Type: Article
• Acceptance Date: Nov 30, 2020
• Online Publication Date: Dec 3, 2020
• Publication Date: Sep 1, 2021
• Deposit Date: Apr 23, 2021
• Publicly Available Date: Apr 23, 2021
• Journal: IEEE Transactions on Energy Conversion
• Print ISSN: 0885-8969
• Electronic ISSN: 1558-0059
• Publisher: Institute of Electrical and Electronics Engineers
• Peer Reviewed: Peer Reviewed
• Volume: 36
• Issue: 3
• Pages: 2195-2205
• DOI: https://doi.org/10.1109/TEC.2020.3042441
• Keywords: Electrical and Electronic Engineering; Energy Engineering and Power Technology
• Public URL: https://nottingham-repository.worktribe.com/output/5490212
• Publisher URL: https://ieeexplore.ieee.org/document/9280361
• 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.