Dynamic Event-triggered Scheme and Output Feedback Control for CPS under Multiple Cyber Attacks

Abstract

For a cyber physical system under multiple cyber attacks, including non-periodic denial-of-service (DoS) attack and stochastic deception attack, we design a dynamic output feedback controller with dynamic event-triggered strategy. We adopts a control strategy based on dynamic trigger conditions, which reduces the number of triggers and saves network resources. Besides, we establish a switched system model to describe the presence of multiple cyber attacks with dynamic event-triggered scheme. Then, according to asymptotic stability theory, dynamic output feedback controller ensuring the switching system stable is designed by using a piecewise Lyapunov-Krasovskii function. Furthermore, the parameters of dynamc event-triggered and controller are derived in a unified framework and sufficient conditions for asymptotic stability can be obtained.