토크 향상을 위한 매입형 영구자석 전동기 치와 요크의 형상최적설계Shape Optimization of Tooth and Yoke in Interior Permanent Magnet Motor for Maximizing Torque
- Other Titles
- Shape Optimization of Tooth and Yoke in Interior Permanent Magnet Motor for Maximizing Torque
- Authors
- 오세안; 민승재; 홍정표
- Issue Date
- May-2011
- Publisher
- 한국자동차공학회
- Keywords
- Level Set Based Shape Optimization(레벨셋기반 형상최적설계); IPM Motor(매입형 영구자석전동기); Yoke(요크); Tooth(치); Torque(토크)
- Citation
- 2011 한국자동차공학회 부문종합학술대회 논문집, no. , pp.2378 - 2380
- Indexed
- OTHER
- Journal Title
- 2011 한국자동차공학회 부문종합학술대회 논문집
- Start Page
- 2378
- End Page
- 2380
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/168416
- Abstract
- Interior permanent magnet(IPM) motor has been widely used in the automotive industry and it needs high torque performance due to the limitation of the hybrid or electrical vehicle battery capacity. Torque can be improved by adjusting thetooth and yoke and it can be defined as shape optimization problem. Previous researches are restricted to the parametric optimization so that it cannot produce the innovative design. This paper proposes the optimal shape of tooth and yoke using level set-based optimization method since it provides flexibility to represent boundaries. The material properties of ferromagnetic material and coil current are defined by level set function with Heaviside function. The optimization problem is formulated to maximize the torque under the material usage constraint and the shape boundaries are moved by the normal velocity derived from the optimality condition. To validate the proposed method, it is applied to the traction motor design of the hybrid vehicle and produced the innovative configuration.
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