Sarshar, Mohammad Reza;
Jalali Kondelaji, Mohammad Amin;
Asef, Pedram;
Mirsalim, Mojtaba;
(2025)
Electromagnetic Investigation of Innovative Stator–Permanent Magnet Motors.
Energies
, 18
(9)
, Article 2400. 10.3390/en18092400.
Preview |
Text
energies-18-02400.pdf - Published Version Download (12MB) | Preview |
Abstract
Owing to the distinct advantages of stator–permanent magnet (PM) motors over other PM machines, their prominence in high-power-density applications is surging dramatically, capturing growing interest across diverse applications. This article proposes an innovative design procedure for two primary stator–PM motor types, flux switching and biased flux, yielding 30 novel motor designs. The procedure involves splitting teeth, incorporating a flux reversal effect, and embedding flux barriers into the conventional structure. The analytical reasons behind the novel motors’ architecture are mathematically expressed and verified using finite element analysis (FEA). Through an effective optimisation based on a multi-objective genetic algorithm, various feasible stator/rotor pole combinations are explored, with over 36,000 samples evaluated using FEA coupled with the algorithm. The electromagnetic characteristics of promising motors are analysed, revealing that adding the flux reversal effect and flux barriers, which reduce PM volume while decreasing leakage flux and enhancing air gap flux, improves torque production by up to 68%. Beyond torque enhancement, other electromagnetic parameters, including torque ripple, core loss, and the power factor, are also improved. The proposed motors enhance the PM torque density significantly by about 115% compared to conventional motors and reduce the motor costs. A generalised decision-making process and thermal analysis are applied to the top-performing motors. Additionally, the prototyping measures and considerations are thoroughly discussed. Finally, a comprehensive conclusion is reached.
| Type: | Article |
|---|---|
| Title: | Electromagnetic Investigation of Innovative Stator–Permanent Magnet Motors |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.3390/en18092400 |
| Publisher version: | https://doi.org/10.3390/en18092400 |
| Language: | English |
| Additional information: | Copyright © 2025 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
| Keywords: | flux barriers; flux reversal; flux-switching machines; motor optimisation; stator–PM |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Mechanical Engineering |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10208240 |
Archive Staff Only
 |
View Item |
