Event-triggered adaptive robust fault-tolerant control for a class of uncertain switched nonlinear systems

Abstract

In this paper, the adaptive robust [Formula: see text] fault-tolerant control problem for a class of switched nonlinear systems with parameter uncertainty, disturbances and actuator failures is concerned based on event-triggered control strategy. The adaptive laws based on state-dependent switched strategy are designed to eliminate the effects of actuator faults and parameter uncertainties by using the estimations of the unknown upper bounds of uncertain parameters. Then, the robust [Formula: see text] fault-tolerant technique and multiple Lyapunov functions method are used, the designed controller can guarantee that all signals of the switched closed-loop systems are uniformly bounded. Meanwhile, the desired [Formula: see text] performance of the systems is promised. Finally, the simulation results are given to illustrate the effectiveness of the proposed design method.

Keywords

• Event-triggered control
• adaptive robust control
• fault-tolerant control
• state-dependent switched strategy