Fully distributed event‐driven cooperation with unknown parameters under directed graphs

Abstract

In this article, a novel fully distributed dynamic event‐driven strategy is designed for linear multi‐agent systems (MASs) containing unknown parameters under general directed graphs. Each agent can achieve consensus asymptotically by communicating with its neighbors and does not need to use global information, so the proposed dynamic event‐driven algorithm can work in a fully distributed manner. Existing fully distributed event‐based consensus works rely on two or more event monitoring conditions. Too much event monitoring logic will put an extra computational burden on the MASs; instead, for the first time, this article proposes a fully distributed event‐driven strategy with a single event monitoring condition under directed graphs. In addition, the proposed strategy (adaptive control law and event monitoring condition) does not involve the dynamics parameters of MASs and provides better applicability. Finally, we rule out Zeno behavior by showing that any adjacent event interval for each agent is greater than zero. The simulations verify our results.

Fully distributed secure consensualization for leaderless nonlinear multiagent systems with communication link attacks

“…Moreover, a critical characteristic in SCC protocol (3) is that the compromised weight $$$ {\overline{w}}_{ij}(t) $$$ is unknown and time‐varying, while the local neighborhood state error $$$ {\xi}_i(t) $$$ of the estimator is assumed to be available. However, it should be point out that the weight is time‐invariant or deterministic weighted topology in most fully distributed consensus works, 11‐23 it is greater challenging to counteract the influence of the uncertain weight on the adaptive secure consensus characteristic and to realize SCC in a fully distributed manner. Different from the main goal of the fault tolerant control is to maintain the stability of the system and ensure an acceptable performance level by employing redundancy, monitoring, and self‐healing techniques.…”

“…Fully distributed consensus control is one of the important topics in the above fields, which needs that all agents reach agreement on some interesting variables by constructing the consensus protocol in a fully distributed manner. Some fully distributed consensus protocols and important conclusions were shown in References 11‐15, where the influence of the communication link attack or fault was not considered. With the rapid advancement of artificial intelligence and information technology, the communication link attack is an important threat for MASs.…”