基于时延随机分布的网络化控制系统控制器设计  

Controller Design Based on Delay Random Distribution for Networked Control Systems

作　　者：赵众[1] 刘志立[1] 

机构地区：[1]北京化工大学信息科学与技术学院,北京100029

出　　处：《北京理工大学学报》2013年第9期934-939,共6页Transactions of Beijing Institute of Technology

基　　金：国家自然科学基金资助项目(60974065);国家"八六三"计划项目(2009AA04Z135)

摘　　要：针对一类非线性网络化控制系统,根据网络诱导时延两个主要部分即传感器到控制器时延及控制器到执行器时延的不同随机分布特性,利用Lyapunov-Krasovskii泛函方法得到了闭环系统的均方稳定性条件.在系统闭环方程中引入时滞的随机分布特性,获得一种新形式的Lyapunov-Krasovskii方程,降低了控制器设计方法的保守性.仿真结果表明了该方法的有效性.A class of nonlinear networked control systems with delay is studied in this work. On the basis of different random distribution characteristics of network induced delay＇s main two parts, sensor-controller delay and controller-actuator delay, an asymptotically stability criteria is derived for the close-loop system by Lyapunov-Krasovskii functional method. By introducing delay random distribution characteristics to close-loop system function, a novel Lyapunov- Krasovskii function that could lower the conservativeness of controller design method is developed. Simulation example shows the effectiveness of the proposed method.

关 键 词：网络化控制系统 时延 随机分布 LYAPUNOV-KRASOVSKII 非线性 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]