Robust controller design for switched fuzzy systems

This paper studies the problems of designing controller for switched systems. Using switching technique and Lyapunov function method, the continuous state feedback controller is built to ensure that for all allowable uncertainties the relevant closed-loop system is asymptotically stable. Moreover, switching strategy that achieving global asymptotic stability of the uncertain switched fuzzy system is given. In this model, each subsystem of switched system is an uncertain fuzzy system, and a common parallel distributed compensation controller and a switching controller are presented. The main condition is given in form of convex combinations which are more solvable. This method transforms of a certain switched system has strong robustness for the variation of system parameters. A simulation shows the feasibility and the effectiveness of the method.