Study on the Improvement of the Correction Coefficient Considering the 3-D Effect of Spoke-Type Permanent-Magnet Synchronous Motor
- Authors
- Lee S.G.; Bae J.; Kim M.; Kim W.-H.
- Issue Date
- Mar-2020
- Publisher
- Institute of Electrical and Electronics Engineers Inc.
- Keywords
- Axial leakage flux; axial linkage flux; correction coefficient; spoke-type permanent-magnet synchronous motor (PMSM)
- Citation
- IEEE Transactions on Magnetics, v.56, no.3
- Journal Title
- IEEE Transactions on Magnetics
- Volume
- 56
- Number
- 3
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/26388
- DOI
- 10.1109/TMAG.2019.2954900
- ISSN
- 0018-9464
- Abstract
- In this article, a correction coefficient is proposed to reduce the error between 2-D finite-element analysis (FEA) and 3-D FEA results. The 2-D FEA results of flux-concentrating machines, such as a spoke-type permanent-magnet synchronous motor (PMSM), show considerable error compared to 3-D FEA results because of 3-D effects. Therefore, 3-D FEA is required to predict the performances precisely for this kind of machine, but it is a time-consuming task. This article proposes the correction coefficient to get accurate results with 2-D FEA. Compared to previous studies, the proposed coefficient can consider the effect of both axial linkage flux and axial leakage flux. Furthermore, the proposed general-purpose correction coefficient could be easily applied to any complex-shaped spoke-type PMSM without complex mathematical calculations. In order to verify the proposed correction coefficient, 2-D and 3-D FEA were performed on various models. Finally, the validity was finally verified through comparison with actual experimental results for prototypes with particular specifications. © 2020 IEEE.
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