Optimal Design of Permanent Magnet Synchronous Machine Based on Random Walk Method and Semi 3D Magnetic Equivalent Circuit Considering Overhang Effect

Su-min Kim, Woo-Sung Jung, Woo-Hyeon Kim, Tae-Kyoung Bang, Dae-Hyun Lee, Yong-Joo Kim and Jang-Young Choi ()
Additional contact information
Su-min Kim: Department of Electrical Engineering, Chungnam National University, Daejeon 34134, Korea
Woo-Sung Jung: Department of Electrical Engineering, Chungnam National University, Daejeon 34134, Korea
Woo-Hyeon Kim: R&D Traction Machine Development Team, Hyundai Elevator, Chungju 27329, Korea
Tae-Kyoung Bang: Advanced Brake System Engineering Cell, Hyundai Mobis, Yongin 16891, Korea
Dae-Hyun Lee: Department of Biosystems Machinery Engineering, Chungnam National University, Daejeon 34134, Korea
Yong-Joo Kim: Department of Biosystems Machinery Engineering, Chungnam National University, Daejeon 34134, Korea
Jang-Young Choi: Department of Electrical Engineering, Chungnam National University, Daejeon 34134, Korea

Energies, 2022, vol. 15, issue 21, 1-10

Abstract: Permanent magnet synchronous machines (PMSMs) with an overhang structure can increase power density by compensating for the increased magnetic energy of permanent magnets. To analyze the overhang structure, a three-dimensional (3D) analysis of PMSMs is essential. However, 3D analysis takes a long time and the modeling process is complicated in the initial design stage. To overcome these problems, a magnetic equivalent circuit technique is applied to the 2D model. In this paper, an optimal design method for PMSMs with an overhang structure is proposed based on the semi 3D magnetic equivalent circuit (MEC) and random walk method. By using semi 3D MEC, it is possible to quickly analyze PMSM and obtain accurate electromagnetic analysis results considering the overhang effect. Moreover, the volume and weight of PMSM can be minimized by optimizing the rotor’s four design parameters using a random walk algorithm. To obtain high efficiency, the objective function is selected so that copper loss is minimized under the same constraints. The validity of the proposed design technique is verified by comparing the analysis results of semi 3D MEC and 3D finite element method for the derived optimal model.

Keywords: optimization techniques; semi 3D magnetic equivalent circuit; design method; overhang structure; random walk algorithms; permanent magnet synchronous motor (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: 2022
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.mdpi.com/1996-1073/15/21/7852/pdf (application/pdf)
https://www.mdpi.com/1996-1073/15/21/7852/ (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:15:y:2022:i:21:p:7852-:d:950920

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 ().