Investigation of Design Parameters for Improving Efficiency in Interior Permanent Magnet Synchronous Machines

Soo-Jin Lee, Seok-Hyeon Eom, Manh-Dung Nguyen, Jun-Ho Jang, Yeon-Tae Choi, Dae-Hyun Lee, Jang-Young Choi () and Kyung-Hun Shin ()
Additional contact information
Soo-Jin Lee: Department of Electrical Engineering, Chungnam National University, Daejeon 34134, Republic of Korea
Seok-Hyeon Eom: Department of Electrical Engineering, Chungnam National University, Daejeon 34134, Republic of Korea
Manh-Dung Nguyen: Department of Electrical Engineering, Chungnam National University, Daejeon 34134, Republic of Korea
Jun-Ho Jang: Department of Electrical Engineering, Chungnam National University, Daejeon 34134, Republic of Korea
Yeon-Tae Choi: Department of Electrical Engineering, Chungnam National University, Daejeon 34134, Republic of Korea
Dae-Hyun Lee: Department of Bio-Systems Machinery Engineering, Chungnam National University, Daejeon 34134, Republic of Korea
Jang-Young Choi: Department of Electrical Engineering, Chungnam National University, Daejeon 34134, Republic of Korea
Kyung-Hun Shin: Department of Electrical Engineering, Changwon National University, Changwon 51140, Republic of Korea

Energies, 2025, vol. 18, issue 18, 1-17

Abstract: This study focuses on improving the efficiency of interior permanent magnet synchronous motors (IPMSMs) for electric vehicle (EV) compressors. Seven rotor topologies (B, dB, V, dV, D, U, and UV) were first compared, among which the U-type rotor demonstrated the highest efficiency and the lowest total loss. Subsequently, the influence of the turn number and rotor outer diameter (ROD) on the shift of the high-efficiency region was analyzed, and six key design variables were identified through Pearson correlation-based sensitivity analysis. Using these variables, a multi-objective optimization was performed in Ansys OptiSLang, which improved the integrated part load value (IPLV)-weighted efficiency from 91.05% to 92.29% and shifted the high-efficiency region closer to the main operating point. Experimental validation of the reference model confirmed the reliability of the FEM analysis, and the proposed optimal design is expected to enhance low-speed efficiency and reduce battery energy consumption in EV compressor applications.

Keywords: IPMSM; rotor type; efficiency map; EV compressor (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/1996-1073/18/18/4971/pdf (application/pdf)
https://www.mdpi.com/1996-1073/18/18/4971/ (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:18:p:4971-:d:1752839

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 ().