Investigation of an Interior Micro Permanent Magnet Synchronous Motor

Da-Chen Pang, Zhen-Jia Shi, Young-Ho Chang, Hua-Chih Huang and Gia-Thinh Bui
Additional contact information
Da-Chen Pang: Department of Mechanical Engineering, National Kaohsiung University of Science and Technology, 415 Jian Gong Rd., Sanmin Dist., Kaohsiung 80778, Taiwan
Zhen-Jia Shi: Department of Mechanical Engineering, National Kaohsiung University of Science and Technology, 415 Jian Gong Rd., Sanmin Dist., Kaohsiung 80778, Taiwan
Young-Ho Chang: Department of Mechanical Engineering, National Kaohsiung University of Science and Technology, 415 Jian Gong Rd., Sanmin Dist., Kaohsiung 80778, Taiwan
Hua-Chih Huang: Department of Mechanical Engineering, National Kaohsiung University of Science and Technology, 415 Jian Gong Rd., Sanmin Dist., Kaohsiung 80778, Taiwan
Gia-Thinh Bui: Department of Electrical and Mechanical Engineering, Hai Phong University, 171 Phan Dang Luu Road, Kien An District, Hai Phong City 180000, Vietnam

Energies, 2021, vol. 14, issue 14, 1-13

Abstract: This study describes the development of the world’s smallest interior permanent magnet synchronous motor (IPMSM) to increase the torque density of micromotors. The research evaluates the feasibility of the miniaturization of IPMSM since recent studies in this area focus on medium to large size compressor and traction motor applications. The standard-type and spoke-type IPMSM were selected for ease of micro machining. In order to surpass the performance of an inset motor of the same size used in previous research, the interior motors were designed with a different slot pole number, permanent magnet shape and rotor structure. Two types of interior motors were manufactured and tested to compare their performance. It was shown that the spoke-type interior motor had a better output torque, while the standard-type interior motor had a lower torque ripple, and both motors matched the specifications of commercially available motors. To achieve a higher torque density, the IPMSM designs increased the slot pole number from 6 slots 4 poles to 9 slots 6 poles. The torque density of the spoke-type motor was increased by 48% compared to the inset motor. The disadvantage is that the new design has a greater number of parts and smaller size, resulting in difficulties in manufacturing and assembly.

Keywords: interior permanent magnet synchronous motor; miniaturization; standard-type and spoke-type (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: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.mdpi.com/1996-1073/14/14/4172/pdf (application/pdf)
https://www.mdpi.com/1996-1073/14/14/4172/ (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:14:y:2021:i:14:p:4172-:d:591977

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

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