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Design of a Reduced-Order Disturbance Observer Controller for EMS System with Mass Uncertainty
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무게변동을 고려한 자기부상시스템의 저차 외란관측기 제어기 설계

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Type
Academic journal
Author
Nam-Hoon Jo (숭실대학교)
Journal
The Korean Institute of Electrical Engineers The transactions of The Korean Institute of Electrical Engineers Vol.66 No.5 KCI Accredited Journals SCOPUS
Published
2017.5
Pages
812 - 818 (7page)

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Design of a Reduced-Order Disturbance Observer Controller for EMS System with Mass Uncertainty
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Abstract· Keywords

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In this paper, we design a reduced-order disturbance observer (DOB) controller for an EMS (Electro-Magnetic Suspension) system with mass uncertainty. Compared with conventional DOB controller, the proposed reduced-order DOB controller can be implemented in a simpler way, since it uses reduced order nominal model and Q-filter. It is shown that the nominal model for the proposed DOB controller should be carefully chosen in order to achieve the robust stability in the present of mass uncertainty. Computer simulation results to validate the effectiveness of the proposed DOB controller are included.
#Disturbance observer(DOB) #EMS system #Nominal model

Contents

Abstract
1. 서론
2. 자기부상 시스템
3. DOB 제어기
4. 저차 DOB 제어기 설계
5. 모의실험
6. 결론
References

References (10)

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D. Cho, Y. Kato, and D. Spilman, “Sliding mode and classical control magnetic levitations systems,” IEEE Control Systems Magazine, vol. 13, pp. 42-48, Feb. 1993. S. J. Joo and J. H. Seo, “Design and analysis of the nonlinear feedback linearizing control for an electromagnetic suspension system,” IEEE Transactions on Control Systems , vol. 5, no. 1, pp. 135-144, 1996. Z. J. Yang, Y. Fukushima, S. Kanae, and K. Wada, “Adaptive robust output-feedback control of a magnetic levitation system by k-filter approach,” IEEE Trans. Industrial, vol. 55, no. 1, pp. 390-399, Jan. 2008. N.S. Kang, and Nam H. Jo, A study on the controller design for EMS system using disturbance observre, Trans. of the Korean Institute of Electrical Engineers, vol. 62, pp. 1264-1269, 2013 C. Jeon, S. Jang, and Nam H. Jo, A Study on the Influence of Q-filter on Disturbance observer controller for Electro- Magnetic suspension systems, Journal of Korean Institute of Illuminating and Electrical Installation Engineers, vol. 29, pp. 104-110, 2015

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