Reliable Dissipative Sampled Data Control for Uncertain Systems With Nonlinear Fault Input

Abstract

This paper investigates the robust reliable خ²dissipative control for uncertain dynamical systems with mixed actuator faults via sampleddata approach. In particular, a more general reliable controller containing both linear and nonlinear parts is constructed for the considered system. Then, by applying the input delay approach, the sampling measurement of the digital control signal is transformed into timevarying delayed one. The aim of this paper is to design state feedback sampleddata controller to guarantee that the resulting closedloop system to be strictly (Q, S, R)خ²dissipative. By constructing appropriate Lyapunov function and employing a delay decomposition approach, a new set of delaydependent sufficient stabilization criteria is obtained in terms of linear matrix inequalities (LMIs). Moreover, the obtained LMIs are dependent, not only upon upper bound of time delay but also depend on the dissipative margin خ² and the actuator fault matrix. As special cases, Hâˆ‍ and passivity control performances can be deduced from the proposed dissipative control result. Finally, numerical simulation is provided based on a flight control model to verify the effectiveness and applicability of the proposed control scheme.