Reliable H∞ control for discrete-time fuzzy systems with infinite-distributed delay
Date
2012
Authors
Wu, Z.
Shi, P.
Su, H.
Chu, J.
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Journal article
Citation
IEEE Transactions on Fuzzy Systems, 2012; 20(1):22-31
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Zheng-Guang Wu, Peng Shi, Hongye Su, and Jian Chu
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Abstract
In this paper, the problem of reliable H∞ control is investigated for discrete-time Takagi-Sugeno (T-S) fuzzy systems with infinite-distributed delay and actuator faults. A discrete-time homogeneous Markov chain is used to represent the stochastic behavior of actuator faults. In terms of a stochastic fuzzy Lyapunov functional, a sufficient condition is proposed to ensure that the resultant closed-loop system is exponentially stable in the mean-square sense with an H∞ performance index. Based on the derived condition, the reliable H∞ control problem is solved, and an explicit expression of the desired controller is also given. The case of no failure in the actuator is also considered. A numerical example is given to demonstrate that our results are effective and less conservative.
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© 2012 IEEE