NDLI: Robust Output Regulation of T--S Fuzzy Systems With Multiple Time-Varying State and Input Delays

Content Provider	IEEE Xplore Digital Library
Author	Chian-Song Chiu Tung-Sheng Chiang
Copyright Year	1993
Abstract	This paper proposes a robust output regulator design for Takagi-Sugeno (T-S) fuzzy systems with uncertain time delays. For generalization of the control problem, we assume that there exist affine dynamics, unknown multiple time-varying delays in state and input, uncertain parameters, disturbance, and partial state feedback. Both continuous-time and discrete-time cases are considered in a unified theoretical derivation. Here, we introduce a memoryless fuzzy observer and a fuzzy integral compensator. In comparison with previous studies, the proposed scheme drops the need for coordinate transformation, calculation of the desired operational point, which is known state and input delays, and exact fuzzy modeling. The control result is asymptotic output regulation for systems without disturbance and guaranteed H ^infin performance for systems with disturbance. Moreover, a piecewise constant output regulation is achieved without controller redesign. In addition, the developed fuzzy regulator can be applied to both affine and nonaffine uncertain time-delay systems. Finally, numerical simulations are performed by using two typical time-delay systems to validate the expected performance.
Sponsorship	IEEE Computational Intelligence Society
Starting Page	962
Ending Page	975
Page Count	14
File Size	381768
File Format	PDF
ISSN	10636706
Volume Number	17
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-08-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Robustness Fuzzy systems Time varying systems Control systems Delay effects Delay systems Regulators State feedback Telecommunication control Nonlinear systems uncertainty Input delay output regulation Takagi–Sugeno (T–S) fuzzy model time-varying delay
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Artificial Intelligence Control and Systems Engineering Computational Theory and Mathematics

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