Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 1997.07f
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- Pages.1982-1984
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- 1997
Variable Structure Control of an Electromagnetic Suspension Sys Using Adaptive Load Estimation
상전도 흡인식 자기 부상 시스템의 적응 제어 부하 예측기를 이용한 가변 구조 제어기 설계
- Lee, Sang-Bin (Dept. of Electrical Eng., Korea University) ;
- Lee, Jeong-Uk (Dept. of Electrical Eng., Korea University) ;
- Lee, In-Ho (Dept. of Electrical Eng., Korea University) ;
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Yoo, Ji-Yoon
(Dept. of Electrical Eng., Korea University)
- Published : 1997.07.21
Abstract
In this paper, adaptive variable structure control is proposed for Electromagnetic Suspension(EMS). Although variable structure control shows excellent robustness to unstructured modelling uncertainty, such as flux leakage and saturation, it has several drawbacks that severely limit practical applicability such as high control activity and control chattering. To minimize these effects, the mass of the electromagnet and efficiency of levitation force are estimated on-line to reduce the range of system uncertainty. The effectiveness of the proposed control scheme is verified by experimental results using a 1.5kg electromagnet and DSP (TMS320C31).
Keywords