Disturbance-observer-based reliable output control for time-delay systems with actuator faults

This paper is concerned with the disturbance-observer-based reliable robust static output controller design of linear uncertain time-delay systems with actuator faults. The estimation of exogenous disturbance is derived by a disturbance observer and used to compensate the negative effect caused by the disturbance. The disturbance-observerbased static output control scheme is constructed by the estimation and a linear controller based on system output. The design of the disturbance-observer-based reliable robust output controller follows Finsler lemma, where the sufficient conditions of the closed-loop system being asymptotically stable are established in a set of linear matrix inequalities. The effectiveness of the proposed approach is verified by a numerical example.