Decentralized event-triggered consensus control strategy for leader–follower networked systems
Decentralized event-triggered consensus control strategy for leader–follower networked systems
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DOI：
10.1016/j.physa.2017.02.063
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发表时间：
2017-08
影响因子：
3.3
通讯作者：
Shouxu Zhang;D. Xie;Weisheng Yan
中科院分区：
文献类型：
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作者：
Shouxu Zhang;D. Xie;Weisheng Yan
研究了主从网络系统的一致性问题。首先，提出了集中式和分散式事件触发控制策略，使从动轮的控制执行器以非周期的时间间隔更新。特别地，后者使得每个跟随者只需要局部信息。在此基础上，提出了一种改进的触发函数，该函数只使用跟随者自身的信息和邻居在最近事件时刻的状态，从而放宽了对邻居连续状态的要求。此外，该策略不需要拓扑信息，也不需要拉普拉斯矩阵的特征值。如果追随者与领导者没有直接联系，也不需要领导者的信息。分析表明，通过使用所提出的策略，领导者-追随者网络系统是能够达成共识，没有连续的追随者之间的通信。仿真结果表明了该控制策略的有效性。
In this paper, the consensus problem of leader–follower networked systems is addressed. At first, a centralized and a decentralized event-triggered control strategy are proposed, which make the control actuators of followers update at aperiodic invent interval. In particular, the latter one makes each follower requires the local information only. After that, an improved triggering function that only uses the follower’s own information and the neighbors’ states at their latest event instants is developed to relax the requirement of the continuous state of the neighbors. In addition, the strategy does not require the information of the topology, nor the eigenvalues of the Laplacian matrix. And if the follower does not have direct connection to the leader, the leader’s information is not required either. It is analytically shown that by using the proposed strategy the leader–follower networked system is able to reach consensus without continuous communication among followers. Simulation examples are given to show effectiveness of the proposed control strategy.