Decentralized Event-Triggered Control for Switched Systems Under Stochastic Cyber Attacks and Actuator Failures

This paper studies the decentralized event-triggered ${{\mathcal{H}}_\infty }$ control for networked switched systems subject to stochastic cyber attacks and actuator failures. First, since the system state is divided into multiple communication channels, decentralized states are sampled and triggered, respectively. A set of decentralized event-triggering mechanisms (DETMs) is introduced to determine whether the sampled data is released. Subsequently, a data buffer merges the released data from decentralized triggering mechanisms. Stochastic cyber attacks and actuator failures are taken into account for a more practical situation. By using a delay system analysis approach, a time-delay closed-loop switched system is derived. Then, sufficient conditions are provided to guarantee ${{\mathcal{H}}_\infty }$ performance of switched system by utilizing piecewise Lyapunov functional method and average dwell time technique. Moreover, sufficient conditions for designing event-triggered state feedback controllers and event-triggering parameters are given. Finally, a numerical simulation is shown to verify the effectiveness of the proposed method.