대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2008년도 춘계학술대회 논문집 전기기기 및 에너지변환시스템부문
- /
- Pages.83-85
- /
- 2008
부상용 전자석의 설계 및 동특성 해석
Design and Dynamic Analysis of Electromagnets for Levitation Application
- Jang, Seok-Myeong (Chungnam National University) ;
- Choi, Jang-Young (Chungnam National University) ;
- Sung, So-Young (KIMM) ;
- Sung, Ho-Kyoung (KIMM)
- 발행 : 2008.04.25
초록
This paper deals with design and dynamic analysis of electromagnets for levitation applications. On the basis of equivalent magnetic circuit (EMC) method and 3-D finite element analysis (FEA) model, initial and detailed design for electromagnets are performed. Using the state equation for the closed-loop control, the dynamic analysis of electromagnets is also performed. Finally, this paper investigates the variation of levitation force according to current under fixed nominal air-gap, and the variation of required current according to load weight in order to maintain the nominal air-gap. From these results, the validation of design and dynamic analysis of electromagnets is confirmed. In particular, the influence of winding temperature on levitation control is discussed in detail.
키워드