不确定网络化控制系统的保性能鲁棒容错控制  

Robust Guaranteed Cost Fault Tolerant Control for Networked Control Systems with Uncertainty

作　　者：李炜[1] 李亚洁[1] 

机构地区：[1]兰州理工大学电气工程与信息工程学院,兰州730050

出　　处：《系统仿真学报》2009年第23期7544-7548,共5页Journal of System Simulation

基　　金：国家自然科学基金项目(60964003);甘肃省自然科学基金项目(3ZS051-A25-032);兰州理工大学电气与控制团队(116081)

摘　　要：研究了一类含有不确定性的网络化控制系统的完整性和保性能容错控制问题。基于Lyapunov稳定性理论和LMI方法,采用状态反馈控制策略,针对含有不确定性的网络化控制系统当执行器发生失效故障时分别推证出了系统仍渐近稳定和能够满足一定控制指标的充分条件,进而通过将矩阵不等式转化为线性矩阵不等式得到了求取两种容错控制器的方法。最后用仿真算例验证了该方法的有效性和可行性。It was discussed that the problems is the integrity and cost guaranteed fault-tolerant control for networked control systems with uncertainty.Based on Lyapunov stability theory and Linear Matrix Inequality（LMI）,firstly,the sufficient condition for closed-loop networked control systems possessing robust integrity against actuator failures was given by adopting state feedback control law;Secondly,the sufficient condition which can meet a cost function for closed-loop networked control systems against actuator failures was given by adopting state feedback control law;Lastly,these two robust fault-tolerant controllers were designed via solving several linear matrix inequalities.Finally,the numerical example was given to demonstrate the effectiveness and feasibility of the proposed approaches.

关 键 词：网络化控制系统 鲁棒容错控制 保性能控制 线性矩阵不等式 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]