Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2008.04c
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- Pages.83-85
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- 2008
Design and Dynamic Analysis of Electromagnets for Levitation Application
부상용 전자석의 설계 및 동특성 해석
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Jang, Seok-Myeong
(Chungnam National University) ;
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Choi, Jang-Young
(Chungnam National University) ;
- Sung, So-Young (KIMM) ;
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Sung, Ho-Kyoung
(KIMM)
- Published : 2008.04.25
Abstract
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.
Keywords