Robust fault-tolerant control for a class of uncertain switched fuzzy systems

A model of a kind of uncertain switched fuzzy systems is presented first, in which each subsystem is an uncertain fuzzy system. Then the robust stabilization problem to the system is studied and a solution proposed. When subactuators suffer “serious failure”-the residual part of actuator can not make original system stable, a reliable robust controller is constructed to guarantee the closed-loop system is asymptotically stable via using switching technique and single Lyapunov function approach. The switching strategy achieving system asymptotically stable of the uncertain switched fuzzy system is given. An illustrative example is given that demonstrates the feasibility and the effectiveness of the proposed method.