不确定时延输出反馈网络化系统保性能控制  

Guaranteed performance control for output feedback networked control systems with uncertain time-delay

作　　者：邱占芝[1,2] 张庆灵[1] 刘明[1,3] 

机构地区：[1]东北大学系统科学研究所,辽宁沈阳110004 [2]大连交通大学软件学院 [3]香港城市大学,数学系,中国香港

出　　处：《控制理论与应用》2007年第2期274-278,共5页Control Theory & Applications

基　　金：国家自然科学基金(60574011);辽宁省自然科学基金(20052146)

摘　　要：研究了一类具有不确定时延的动态输出反馈网络控制系统的保性能控制问题．针对小于等于一个采样周期的不确定时延,利用Lyapunov理论和线性矩阵不等式方法,推导出了动态输出反馈网络控制系统保性能控制律存在的条件,给出了动态输出反馈保性能控制律设计方法．利用LMI工具箱中的目标函数最小化工具,可以求得该类系统优化的保性能控制律参数和优化的性能指标,从而获得该系统的保性能控制律．给出的仿真算例说明了设计方法是有效的所得结果是可行的．The problem of guaranteed performance control for a class of dynamic output feedback networked control systems（NCS） with uncertain time-delay is studied in this paper. For the case of uncertain time-delay less than or equal to a sampling period, by using the Lyapunov theory and linear matrix inequality approach, the condition of the existence of guaranteed performance law for dynamic output feedback networked control systems is derived, the design method of dynamic output feedback guaranteed performance control law and the optimal performance index of the NCS are also presented. The parameters of optimal guaranteed performance control law can be solved by the function ＂mincx＂ of the MATLAB LMI toolbox, the guaranteed performance control law and the optimal performance index for the system can thus be obtained. Finally, a simulation example is given to validate the design method and to demonstrate the feasibility of the results.

关 键 词：网络控制系统 保性能控制 线性矩阵不等式 动态输出反馈 不确定时延 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程]