Yang Xinsong, Li Xiaodi, Lu Jianquan, Cheng Zunshui
IEEE Trans Cybern. 2020 Sep;50(9):4043-4052. doi: 10.1109/TCYB.2019.2938217. Epub 2019 Sep 17.
This article investigates global exponential synchronization almost surely (GES a.s.) of complex networks (CNs) with node delay and switching topology. By introducing transition probability (TP) and mode-dependent average dwell time (MDADT) to the switching signal, the considered model is more practical than the systems with average dwell-time (ADT) switching. Controllers with both impulsive effects and actuator fault feedback are considered. New analytical techniques are developed to obtain sufficient conditions to guarantee the GES a.s. Different from the existing results on the synchronization of switched systems, our results show that the GES a.s. can still be achieved even in the case that the upper bound of the dwell time (DT) of uncontrolled nodes is very large and the lower bound of the DT of controlled nodes is very small. Numerical examples demonstrate the effectiveness and the merits of the theoretical analysis.
本文研究了具有节点延迟和切换拓扑的复杂网络几乎必然全局指数同步(GES a.s.)问题。通过将转移概率(TP)和依赖模式的平均驻留时间(MDADT)引入切换信号,所考虑的模型比具有平均驻留时间(ADT)切换的系统更具实际意义。考虑了具有脉冲效应和执行器故障反馈的控制器。开发了新的分析技术以获得保证GES a.s.的充分条件。与现有关于切换系统同步的结果不同,我们的结果表明,即使在未受控节点的驻留时间(DT)上限非常大且受控节点的DT下限非常小的情况下,仍可实现GES a.s.。数值算例验证了理论分析的有效性和优点。