Secure stabilization of nonlinear switched system via practical asynchronous event-triggered control

In this article, a practical asynchronous event-triggered control (ETC) scheme and a strictly monotonically decreasing Lyapunov–Krasovskii functional (LKF) approach are proposed to study the secure global asymptotic stabilization (SGAS) and nonweighted (Formula presented.) performance for a nonlinear switched system (NSS) under deception attack. The proposed ETC is mode-dependent with transmission delay in both the switching signal and states of the controller, which is more practical than previous asynchronous ETCs only considered transmission delay in the switching signal. The novelty lies in the realization that the LKF is strictly monotonically decreasing when both the transmission delay and the time-varying delay exist, which can significantly decrease conservatism, and the nonweighted (Formula presented.) performance can be estimated with no extra conservative steps. Deriving solutions from linear matrix inequalities provides the controller gains. The reliability of the method is confirmed through numerical simulation and circuit simulation.