Robust Consensus Tracking Strategy of Heterogeneous Nonlinear Multi-Agent Systems With Time-Varying Input Delays

非线性系统 控制理论(社会学) 计算机科学 多智能体系统 共识 植绒(纹理) 图论 图形 数学优化 数学 理论计算机科学 控制(管理) 人工智能 物理 材料科学 量子力学 组合数学 复合材料
作者
Yi Niu,Yulong Yang,Ben Niu,Xudong Zhao,Lun Zhai,Boyi Zhang
出处
期刊:IEEE Transactions on Automation Science and Engineering [Institute of Electrical and Electronics Engineers]
卷期号:21 (4): 6299-6310 被引量:1
标识
DOI:10.1109/tase.2023.3324389
摘要

In this paper, the robust consensus tracking problem is investigated for the heterogeneous nonlinear multi-agent systems (MASs) with weighted communication graph and time-varying input delays. Different from other existing works, the heterogeneous MASs have more general topology graph which contains a spanning tree. Further, the assumption of leader system is relaxed to contain the disturbance term. Hence, the intelligent technologies are used to approximate the unknown quantities from neighbor systems and leader system. To deal with the difficulties caused by the input delays, the compensation system, double integral type and novel constructed exponential type Lyapunov-Krasovskii (L-K) functionals are proposed to design the adaptive controllers. It should be known that the novel constructed exponential type L-K functional is simpler to design, and not only can satisfy the stability requirements but also can counteract the input delay. Besides, the uniform hysteretic quantizer is used to save the communication costs, and the dynamic surface filter is considered to optimize the controller structure for each agent. Under the proposed control protocol, the tracking errors are shown to achieve satisfactory control accuracy. Finally, the numerical example is provided to verify our strategies. Note to Practitioners —This paper considers the consensus tracking problem for the heterogeneous nonlinear MASs with weighted communication graph and time-varying input delay. The model is widely applied in the flocking control field, such as transportation, communication, manufacturing sector and so on. As the delay causes system performance degradation, it is more meaningful for realistic scene to consider the continuous and non-differentiable controller with unknown time-varying delay. Furthermore, the designed controller can keep the control accuracy, and the computation and communication costs are efficiently reduced.

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