대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 1999년도 하계학술대회 논문집 A
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- Pages.211-213
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- 1999
민감도와 역 관계를 이용한 전기기기의 입력 전류 분포 최적화
Source Current Optimization of Electromagnetic Devices using Sensitivity and Inverse Relation
- Lee, Ju-Hyun (Seoul National University) ;
- Byun, Jin-Gyu (Seoul National University) ;
- Hahn, Song-Yop (Seoul National University)
- 발행 : 1999.07.19
초록
This paper describes a new method for source current optimization of the electromagnetic devices. In a conventional method of current distribution optimization using design sensitivity based on a finite element method, position and width of coils are generally optimized under condition that shape of those is given. they cannot find the global minimum because the number of coils is pre-determined. To avoid this local minimum, source current region which is discretized uniformly is considered as design parameter. This discretized regions have zero or one current value during the optimization process. The proposed method is applied to magnetic resonance imaging(MRI) magnet.
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