Prediction of Mechanical Loss for High-Power-Density PMSM Considering Eddy Current Loss of PMs and Conductors
- Authors
- Park, Soo-Hwan; Lee, Eui-Chun; Park, Jin-Cheol; Hwang, Sung-Woo; Lim, Myung-Seop
- Issue Date
- Feb-2021
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Eddy current loss; efficiency; mechanical loss; maximum slot occupation coil (MSO coil); permanent-magnet synchronous motor (PMSM)
- Citation
- IEEE TRANSACTIONS ON MAGNETICS, v.57, no.2, pp.1 - 5
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE TRANSACTIONS ON MAGNETICS
- Volume
- 57
- Number
- 2
- Start Page
- 1
- End Page
- 5
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/1601
- DOI
- 10.1109/TMAG.2020.3007439
- ISSN
- 0018-9464
- Abstract
- This article proposes an indirect method for predicting mechanical loss by considering the eddy current loss of permanent magnets (PMs) and conductors under the no-load condition. The mechanical loss has been conventionally predicted indirectly through experiments and numerical methods. The conventional method uses the no-load loss measured through experiments and the no-load iron loss calculated through a numerical method. With the increase in the demand for high-power-density motors, the PMs with high energy density and winding technology with high fill factor are required. Thus, the proportion of eddy current losses of PMs and conductors is increasing among the electromagnetic losses. Therefore, we propose an indirect method for predicting the mechanical lass considering the eddy current losses. The accuracy of the proposed method is higher than that of the conventional method. Moreover, the proposed method is verified by comparing the estimated efficiency of the specimen obtained by using this method with the measured efficiency.
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