Analysis of Torque Characteristics in Dual Three-Phase PMSMs with Asymmetric IPM Rotors

Shensheng Wang, Zi-Qiang Zhu (), Yang Xiao and Dawei Liang
Additional contact information
Shensheng Wang: School of Electrical and Electronic Engineering, University of Sheffield, Sheffield S1 3JD, UK
Zi-Qiang Zhu: School of Electrical and Electronic Engineering, University of Sheffield, Sheffield S1 3JD, UK
Yang Xiao: School of Engineering, University of Leicester, Leicester, LE1 7RH, UK
Dawei Liang: School of Electrical and Electronic Engineering, University of Sheffield, Sheffield S1 3JD, UK

Energies, 2025, vol. 18, issue 20, 1-28

Abstract: In this paper, the effects of asymmetric interior permanent magnet (AIPM) rotors on the torque characteristics in dual three-phase (DTP) permanent magnet synchronous machines (PMSMs) are investigated. The electromagnetic performances of DTP PMSMs with symmetrical and asymmetric IPM rotors are compared, including air-gap flux density, back EMF, cogging torque, torque, loss, and efficiency. It is found that in DTP PMSMs, the AIPM rotor can achieve significant torque improvement under both healthy and single three-phase open-circuit conditions. It is also found that performance enhancement in AIPM DTP machines is more remarkable across the constant torque region, particularly at high-load conditions, than in the constant power region, compared with the symmetrical IPM counterpart. A prototype is fabricated and tested to verify theoretical analyses.

Keywords: asymmetric interior permanent magnet rotor; dual three-phase; interior permanent magnet rotor; permanent magnet synchronous machine (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2025
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/18/20/5477/pdf (application/pdf)
https://www.mdpi.com/1996-1073/18/20/5477/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:18:y:2025:i:20:p:5477-:d:1773605

Access Statistics for this article

Energies is currently edited by Ms. Cassie Shen

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().