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研究了传感器、执行器为时钟驱动,控制器为事件驱动,网络诱导时延大于一个采样周期的网络(NCS)的稳定性问题。首先将NCS视为时变时滞系统,然后利用Lyapunov-Krasovskii V泛函方法,在处理V导数的时候,不进行放大估计,而是通过引入一些恰当的零项,构造出LMI,得到了闭环系统渐近稳定的一个充分条件,并给出了系统H∞控制器的设计方法。Matlab仿真算例说明了本文方法和结果的有效性。
The stability of sensors, actuators driven by clock, controller driven by events, and network-induced delay greater than one sampling period (NCS) are investigated. First of all, NCS is regarded as a time-varying delay system, and then the Lyapunov-Krasovskii V functional approach is used. When the V-derivative is processed, no magnification is estimated. Instead, LMI is constructed by introducing some appropriate zero entries, Asymptotic stability of the system is considered as a sufficient condition and the design method of the system H∞ controller is given. The simulation example of Matlab shows the effectiveness of the method and results in this paper.