期刊
IEEE TRANSACTIONS ON FUZZY SYSTEMS
卷 13, 期 2, 页码 238-249出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TFUZZ.2004.840131
关键词
fuzzy dynamic systems with time delay; guaranteed cost control; linear matrix inequality (LMI); observer
This paper focuses on the problem of guaranteed cost control for Takagi-Sugeno (T-S) fyzzy systems with time-varying delayed state. A linear quadratic cost function is considered as a performance index of the closed-loop fuzzy system. Then, the guaranteed cost control of the closed-loop fuzzy system is discussed, and the sufficient conditions are provided for the construction Of a guaranteed cost controller via state feedback and observer-based output feedback. When these conditions, which are given in terms of the feasibility of linear matrix inequalities (LMIs), are satisfied, the designed state feedback controller and observer-based controller gain matrices can be obtained via a convex optimization problem. Two illustrative examples are provided to demonstrate the effectiveness of the approaches proposed in this paper.
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