Robust Stability Criterion for Discrete-Time Nonlinear Switched Systems with Randomly Occurring Delays via T-S Fuzzy Approach

This article investigates exponential stability of uncertain discrete-time nonlinear switched systems with parameter uncertainties and randomly occurring delays via Takagi-Sugeno fuzzy approach. The randomness of time-varying delay is characterized by introducing a Bernoulli stochastic variable that follows certain probability distribution. By adopting the average dwell-time approach with Lyapunov-Krasovskii functional and using convex reciprocal lemma, delay-dependent sufficient conditions for exponential stability of the switched fuzzy system are derived in terms of linear matrix inequalities LMIs, which can be solved readily using any LMI solvers. Finally, illustrative examples are provided to demonstrate the effectiveness of the proposed approach. © 2014 Wiley Periodicals, Inc. Complexity 20: 49-61, 2015

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