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Adaptive fuzzy output-feedback controller design for nonlinear systems via backstepping and small-gain approach
Liu Z.; Wang F.; Zhang Y.; Chen X.; Chen C.L.P.
2014
Source PublicationIEEE Transactions on Cybernetics
ISSN21682267
Volume44Issue:10Pages:1714
AbstractThis paper focuses on an input-to-state practical stability (ISpS) problem of nonlinear systems which possess unmodeled dynamics in the presence of unstructured uncertainties and dynamic disturbances. The dynamic disturbances depend on the states and the measured output of the system, and its assumption conditions are relaxed compared with the common restrictions. Based on an input-driven filter, fuzzy logic systems are directly used to approximate the unknown and desired control signals instead of the unknown nonlinear functions, and an integrated backstepping technique is used to design an adaptive output-feedback controller that ensures robustness with respect to unknown parameters and uncertain nonlinearities. This paper, by applying the ISpS theory and the generalized small-gain approach, shows that the proposed adaptive fuzzy controller guarantees the closed-loop system being semi-globally uniformly ultimately bounded. A main advantage of the proposed controller is that it contains only three adaptive parameters that need to be updated online, no matter how many states there are in the systems. Finally, the effectiveness of the proposed approach is illustrated by two simulation examples. © 2013 IEEE.
KeywordAdaptive fuzzy control backsteppng technique output-feedback small-gain approach
DOI10.1109/TCYB.2013.2292702
URLView the original
Language英语
The Source to ArticleScopus
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被引频次[WOS]:81   [WOS记录]     [WOS相关记录]
Document TypeJournal article
专题DEPARTMENT OF COMPUTER AND INFORMATION SCIENCE
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Liu Z.,Wang F.,Zhang Y.,et al. Adaptive fuzzy output-feedback controller design for nonlinear systems via backstepping and small-gain approach[J]. IEEE Transactions on Cybernetics,2014,44(10):1714.
APA Liu Z.,Wang F.,Zhang Y.,Chen X.,&Chen C.L.P..(2014).Adaptive fuzzy output-feedback controller design for nonlinear systems via backstepping and small-gain approach.IEEE Transactions on Cybernetics,44(10),1714.
MLA Liu Z.,et al."Adaptive fuzzy output-feedback controller design for nonlinear systems via backstepping and small-gain approach".IEEE Transactions on Cybernetics 44.10(2014):1714.
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