Analysis of skewing effects on radial force for different topologies of switched reluctance machines: 6/4 SRM, 8/6 SRM, and 12/8 SRM

• Type: Article in International Scientific Journal
• Date: 2023

Authors

Touati, Z (Author) Other; Rui Esteves Araújo (Author) FEUP; Mahmoud, I (Author) Other; Khedher, A (Author) Other

Journal

Title: U.Porto Journal of Engineering

Vol. 9

Pages: 55-71

Publisher: Universidade do Porto. Faculdade de Engenharia

Indexing

Scopus

Other information

Authenticus ID: P-00X-T5V

DOI: 10.24840/2183-6493_009-001_001134

Abstract (EN): Reducing vibration and noise in electrical machines for a given application is not a straightforward task, especially when the application imposes some restrictions. There are many techniques for reducing vibration based on design or control. Switched reluctance motors (SRMs) have a double-saliency structure, which results in a radial pulsation force. Consequently, they cause vibration and acoustic noise. This paper investigates the correlation between the radial force and the skew angle of the stator and/or rotor circuits. We computed the analysis from two-dimensional (2D) transient magnetic finite-element analysis (FEA) of three machine topologies, namely the 12/8 three-phase SRM, the 6/4 three-phase SRM and the 8/6 four-phase SRM. Compared to SRM, these topologies have the same basic dimensions (stator outer diameter, rotor outer diameter, and length) and operate in the same magnetic circuit saturation. The flux linkage and torque characteristics of the different motors are presented. The radial force distributed on the stator yoke under various skewing angles is studied extensively by FEA for the three machines. It is also demonstrated the effect of skewing angles in the reduction of radial force without any reduction in torque production. © 2023, Universidade do Porto - Faculdade de Engenharia. All rights reserved.

Language: English

Type (Professor's evaluation): Scientific