北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2024, Vol. 47 ›› Issue (2): 103-109.

• 研究报告 • 上一篇    下一篇

通信链路感知的多智能体动态事件触发一致性控制

张雅淳,武艳,杨清海   

  1. 西安电子科技大学
  • 收稿日期:2023-05-18 修回日期:2023-07-10 出版日期:2024-04-28 发布日期:2024-01-24
  • 通讯作者: 武艳 E-mail:yanwu@xidian.edu.cn
  • 基金资助:
    国家自然科学基金资助项目;中央高校基本科研业务费;宁波市科技局科技创新2025重大项目

Dynamic event-triggered consensus control of multi-agent systems with communication link information known

  • Received:2023-05-18 Revised:2023-07-10 Online:2024-04-28 Published:2024-01-24

摘要: 在多智能体信息交互过程中,由于通信带宽有限,需要减少资源消耗。对此,提出了一种基于通信链路感知的动态事件触发控制方案。考虑到触发条件中信道容量的影响,设计了链路感知的一致性触发机制。该机制的触发频率可随通信资源的变化而智能调节。在通信网络带宽状态一般时,降低触发频率可减少网络中的通信量;在通信网络带宽性能较好时,增加触发频率可加快系统的收敛速度。此外,为增加系统的可扩展性,引入了具有有限稳定耦合增益的自适应控制协议,使得控制策略不需要使用网络拓扑相关的全局信息。基于稳定性定理对多智能体系统的一致性进行了推导,并通过正下界法证明了系统不存在 Zeno 行为。仿真结果表明,所提的通信链路感知动态事件触发机制可以在通信资源和收敛速度之间起到调节作用,可有效提升系统网络带宽的利用率。

关键词: 多智能体, 动态事件触发, 链路感知, 一致性控制

Abstract: This paper investigates the consensus problem of multi-agent systems with communication link information known via dynamic event-triggered control. Specifically, the proposed dynamic event-triggered mechanism takes account of channel capacity in the triggering condition, which makes the frequency of information exchange between agents vary with the change of communication resources. That is, to reduce the communication volume when the communication link status is poor, and vice versa. Furthermore, to avoid the use of global topology information so as to be scalable with large systems, an adaptive coupling gain that converges to a finite steady-state value is introduced to form a fully distributed communication link information dynamic event-triggered consensus control scheme. Compared with traditional event-triggered mechanisms, we show that the proposed communication link-aware dynamic event-triggered consensus control protocol can balance the triggering frequency between communication resources and convergence speed. When communication resources are sufficient, the convergence speed is faster than that of traditional event-triggered mechanisms. When communication resources are insufficient, the triggering frequency is less than that of traditional mechanisms.

Key words: multi-agent, dynamic event-triggered, link-aware, consensus control

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