Reliable state Feedback control synthesis for uncertain linear systems

This paper is concerned with the problem of designing reliable state-feedback control for a class of uncertain linear systems with norm bounded uncertainty. A procedure for designing reliable state-feedback control is presented for the case of actuator faults that can be modeled by a scaling factor. In the design, the performance of the normal system (without fault) is optimized, as the considered system operates under the normal condition most of the time. When actuator faults occur, the closed-loop system retains robust stability and satisfies a known quadratic performance bound. A numerical example is given to illustrate the effectiveness of the proposed design method.