摘要
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 NCS with time-delay longer than one sampling period when both sensor and actuator are time-driven as well as controller is event-driven is discussed. Considered NCS is a timevarying time-delay system, the Lyapunov-Krasovskii functional method is used. By adding some appropriate zero terms to the deviation of V and constructing a linear matrix inequality, the delay-dependent stability sufficient condition is derived to ensure the closed-loop NCS＇ s asymptotical stability. Based on this, the design method of the H∞ controller is presented. A Matlab simulation shows the method and the result of this paper are valid.
出处
《系统工程与电子技术》
EI
CSCD
北大核心
2007年第4期613-617,共5页
Systems Engineering and Electronics
基金
辽宁省普通高校学科带头人基金(124210)
辽宁省科技基金资助课题(20014010411)
关键词
网络控制系统
长时延
状态反馈
执行器
时钟驱动
H∞控制
networked control systems
long time-delay
state feedback
actuator
time-driven
H∞ control
