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H-infinite control for random intermittent actuator fault of discrete systems with model uncertainties

In this paper, aiming at a class of systems subject to both state and input uncertainties, in which there is a random intermittent actuator fault, a passive dynamic output feedback fault-tolerant control strategy is proposed. The controller designed in this paper can ensure the stability of fault-free closed-loop system, moreover, can stabilize the closed loop system in finite time and guarantee the system meet H-infinite index when the actuator fault occurs. The stability of the system is proven through Lyapunov approach. Finally the numerical simulation results demonstrate the effectiveness of the proposed method.