Comparative study of permanent magnet-synchronous and permanent magnet-flux switching machines for high torque to inertia applications

Al-Timimy, A.; Giangrande, P.; Degano, M.; Galea, M.; Gerada, C.

Abstract

This paper investigates the capability of both permanent magnet synchronous machine (PMSM) and permanent magnet flux switching (PMFS) machine to provide high torque to inertia ratio for applications with demanding response in terms of acceleration and fast dynamic. The PMSM has higher torque density and efficiency among different electrical machines. However, the presence of the permanent magnets can increase the rotor inertia. Thanks to its passive salient-pole rotor, PMFS machine is a suitable solution for those applications requiring lower inertia. This paper provides a comparative analysis between the PMSM and PMFS machines considering the torque to inertia ratio, the challenges of a flooded air gap and dimensional constraints. The electromagnetic performances of both machines have been evaluated by means of finite element method and a detailed sensitivity analysis is carried out for stator and rotor geometry.

Citation

Al-Timimy, A., Giangrande, P., Degano, M., Galea, M., & Gerada, C. (2017). Comparative study of permanent magnet-synchronous and permanent magnet-flux switching machines for high torque to inertia applications. In Proceedings - 2017 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD) (45-51). https://doi.org/10.1109/WEMDCD.2017.7947722

• Conference Name: 2017 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD)
• Conference Location: Nottingham, United Kingdom
• Start Date: Apr 20, 2017
• End Date: Apr 21, 2017
• Acceptance Date: Mar 2, 2017
• Online Publication Date: Jun 15, 2017
• Publication Date: 2017
• Deposit Date: Aug 2, 2017
• Publicly Available Date: Oct 8, 2018
• Peer Reviewed: Peer Reviewed
• Pages: 45-51
• Book Title: Proceedings - 2017 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD)
• ISBN: 978-1-5090-5854-9
• DOI: https://doi.org/10.1109/WEMDCD.2017.7947722
• Keywords: Flux switching machine, permanent magnet machine, finite element method, high torque to inertia ratio
• Public URL: https://nottingham-repository.worktribe.com/output/856465
• Publisher URL: http://ieeexplore.ieee.org/document/7947722/
• Additional Information: DOI: 10.1109/WEMDCD.2017.7947722; © 2017 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