具有圆形区域极点约束的Delta算子时滞系统鲁棒容错控制  

Robust Fault-tolerant Control for Delta Operator Formulated Time-delay Systems with Circular Pole Constraints

作　　者：宋清华[1] 杜章永[1] 

机构地区：[1]安阳工学院电子信息与电气工程学院,河南安阳455000

出　　处：《科技视界》2012年第5期22-25,共4页Science & Technology Vision

基　　金：河南省教育厅自然科学基金资助项目(2010A510017)

摘　　要：研究了Delta算子描述的不确定离散时变时滞系统在区域极点约束下的时滞依赖鲁棒容错控制问题.基于Lya-punov稳定性理论和线性矩阵不等式(LMI)方法,提出了执行器故障情形下Delta算子系统时滞依赖鲁棒D稳定容错控制的充分条件.依据该LMI的可行解,可得到时滞依赖系统的状态反馈容错控制律.仿真例子表明本文所给出方法的优越性和有效性.This paper is concerned with the problem of delay-dependent robust fault-tolerant control for delta operator formu- lated uncertain systems with time-varying delays and regional pole assignment constraints. Based on Lyapunov stability theory and linear matrix inequality （LMI） approach, a sufficient condition of delay-dependent robust fault-tolerant D-stabilization for delta opera- tor systems with time-delay and actuator failure is provided. When LMI is feasible, the state feedback control law of the delay-depen- dent systems is also obtained. A numerical simulation shows the advantages of delta operator approach and the effectiveness of the proposed method.

关 键 词：时滞系统 容错控制 DELTA算子 区域极点配置 线性矩阵不等式 

分 类 号：TP271.8[自动化与计算机技术—检测技术与自动化装置]