Journal
INFORMATION SCIENCES
Volume 177, Issue 22, Pages 5118-5133Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.ins.2007.05.004
Keywords
linear matrix inequality (LMI); non-fragile control; robust H-infinity control; Takagi-Sugeno (T-S) fuzzy systems; uncertain systems
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This paper investigates the robust H-infinity control and non-fragile control problems for Takagi-Sugeno (T-S) fuzzy systems with linear fractional parametric uncertainties. The robust H-infinity control problem is to design a state feedback controller such that the robust stability and a prescribed H. performance of the resulting closed-loop system is ensured. And the non-fragile H-infinity control problem is to design a state feedback controller with parameter uncertainties. Based on the linear matrix inequality (LMI) approach, new sufficient conditions for the solvability of the two problems are obtained. It is shown that the desired state feedback fuzzy controller can be constructed by solving a set of LMIs. Numerical examples are also provided to demonstrate the effectiveness of the proposed design method. (C) 2007 Elsevier Inc. All rights reserved.
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