Event-Triggered-Based Fault-Tolerant Output Synchronization of Heterogeneous Multi-Agent Systems Under Denial-of-Service Attacks
Kaiyue Dong, Guang‐Hong Yang · IEEE Transactions on Automation Science and Engineering · 2025
This paper studies the problem of dynamic event-triggered output synchronization for heterogeneous multi-agent systems (MASs) under asynchronous Denial-of-Service (DoS) attacks and actuator hybrid faults. First, an innovative dynamic event-triggered estimator abandoning the information of the attacked channels is proposed to estimate the leader’s state under asynchronous attacks, with stability of the estimation error system ensured based on a novel lemma combined with Lyapunov stability theory. Furthermore, a decentralized fault-tolerant controller is developed based on the estimator’s state, which integrates adaptive parameters to compensate for actuator hybrid faults. It is manifested that the output synchronization can be achieved with the designed fault-tolerant controller. Compared with the existing studies assuming simultaneous attacks on all channels, this paper considers each channel’s attack to be independent. Finally, a simulation example not only shows that the dynamic event-triggered mechanism can effectively lengthen the minimum interevent interval due to the internal dynamical variable but also substantiates the effectiveness of the proposed control scheme.