NAOC Open IR
Nonlinear adaptive observer-based sliding mode control for LAMOST mount driving
Zhou WangPing1; Zheng Yi2; Guo Wei1; Yu Li1; Yang ChangSong1
2010
Source PublicationRESEARCH IN ASTRONOMY AND ASTROPHYSICS
ISSN1674-4527
Volume10Issue:1Pages:96
AbstractHeavy disturbances caused mainly by wind and friction in the mount drive system greatly impair the pointing accuracy of the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST). To overcome this negative effect, a third order Higher Order Sliding Mode (HOSM) controller is proposed. The key part of this approach is to design an appropriate observer which obtains the acceleration state. A nonlinear adaptive observer is proposed in which a novel polynomial model is applied to estimate the internal disturbances of the mount drive system. Theoretical analysis demonstrates the stability of the proposed observer. Simulation results show that this nonlinear adaptive observer can obtain a high precision acceleration signal which completes the HOSM controller. Furthermore, the HOSM approach can easily satisfy the position tracking requirements of the LAMOST mount drive system.
KeywordCONTROL-SYSTEM H-INFINITY PERFORMANCE TELESCOPE methods: analytical methods: numerical methods: laboratory telescopes
Language英语
Funding Project[National Natural Science Foundation of China] ; [foundation of Nanjing University of Information Science Technology]
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/60030
Collection中国科学院国家天文台
Affiliation1.南京大学
2.中国科学院国家天文台
Recommended Citation
GB/T 7714
Zhou WangPing,Zheng Yi,Guo Wei,et al. Nonlinear adaptive observer-based sliding mode control for LAMOST mount driving[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2010,10(1):96.
APA Zhou WangPing,Zheng Yi,Guo Wei,Yu Li,&Yang ChangSong.(2010).Nonlinear adaptive observer-based sliding mode control for LAMOST mount driving.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,10(1),96.
MLA Zhou WangPing,et al."Nonlinear adaptive observer-based sliding mode control for LAMOST mount driving".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 10.1(2010):96.
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