This paper studies a phase synchronization problem of the Kuramoto oscillator network model with time-varying coupling topology and stochastic interference,and proposes a fixed-time control method under event-triggered mechanism.A multi-layer event-triggered distributed control strategy is proposed for the coupling network under the assumption that the topology is connected,and the negative effect of random disturbance on synchronization performance is addressed.The control parameter conditions for realizing practical fixed-time phase synchronization and the upper bound of the settling time are presented by the stochastic Lyapunov stability theory and fixed-time stability theory.Moreover,it is proved that the proposed event-triggered mechanism with hyperbolic tangent function does not produce Zeno behavior.The lower bound of the triggered time interval is given.At the same time,the conclusion that the proposed control can also deal with the unconnected topology of oscillator is given in corollary.Finally,the validity of the theoretical analysis results are verified by two sets of experiments with different noise intensities.
关键词
Kuramoto模型/网络控制系统/随机干扰/固定时间同步/事件触发控制/切换网络
Key words
Kuramoto model/networked control system/stochastic perturbation/fixed-time synchronization/event-triggered control/switching networks
维普
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