AC 저항의 영향을 고려한 하이브리드 자동차 견인용 모터의 각동선 형상에 따른 효율 분석
- Authors
- 김기오; 김대기; 박진철; 황성우; 임명섭
- Issue Date
- Jul-2020
- Publisher
- 한국자동차공학회
- Keywords
- AC Resistance; AC 저항; Hybrid Vehicle; 하이브리드 자동차; Rectangular Wire; 각동선; Traction Motor; 견인용 모터
- Citation
- 한국자동차공학회 춘계학술대회, pp.880 - 883
- Indexed
- OTHER
- Journal Title
- 한국자동차공학회 춘계학술대회
- Start Page
- 880
- End Page
- 883
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/192002
- Abstract
- In order to improve the mileage of a hybrid vehicle, it is necessary to increase the power density and efficiency of the traction motor. Therefore, the traction motor requires a high fill factor. When the rectangular wire is applied to the motor, the fill factor can be increased, so that it has a high power density. However, in the high-speed region, the AC resistance increases due to the effect of the eddy currents in the conductor, and thus the loss increases. Therefore, when designing a motor using a rectangular wire, the effect of AC resistance should be considered. In this paper, AC resistance according to several shapes and arrangements of rectangular wire is compared. The AC resistance is calculated through the 2-dimensional finite element analysis (2-D FEA) at the max-speed operation point, and the current density distribution of rectangular wire is compared. For each model according to the shape and placement of rectangular wire, the ratio of DC resistance to AC resistance is calculated. Finally, the loss and efficiency of each model are compared and analyzed.
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