Abstract: The problem of robust fault-tolerant control for uncertain linear systems with structured parameter perturbation is studied. The purpose is to design the feedback controllers such that the closed-loop systems possess robustness for the case of parameter perturbations,and possess integrity for the case of actuator or sensor failures. Based on a modified algebra matrix equation,this paper provides the conditions for the existence of the desired robust fault-tolerant controllers. An explicit expression of the desired controllers is also presented. A design example is used to demonstrate the directness and simplicity of the present design method.

Key words: linear systems, robustness, integrity, fault-tolerance