摘要
基于存在时延和丢包的网络传输环境,针对具有参数不确定性的网络化控制系统,研究了其在传感器故障条件下的保性能可靠控制问题.根据Lyapunov稳定性理论和线性矩阵不等式(LMIs)方法,推导出使闭环网络控制系统在传感器故障条件下渐近稳定且保证综合性能指标满足要求的充分条件,并利用LMIs提出了保性能可靠控制率的设计方法.该控制算法在提高网络化控制系统可靠性的同时有利于系统综合体性能的优化.数值仿真验证了该方法的可行性和有效性.
Based on the network transmission with network-induced delay and packet dropout, guaranteed cost fault-tolerant control for closed-loop networked control systems（NCSs） with sensor failure is studied, aiming at the NCSs with the uncertainty of the parameters matrix, based on Lyapunov stability theory and linear matrix inequalities （ LMIs）, the sufficient conditions of guaranteed cost control with certain upper bound and fault-tolerant control for the NCS with sensor failure are deduced. The corresponding design method of guaranteed cost fault-tolerant controller is presented by using LMIs. The proposed control algorithm, which improves the reliability of the system, is propitious to optimize the integrative capability of the system. Numerical simulation demonstrates the effectiveness and feasibility of the proposed method.
出处
《控制与决策》
EI
CSCD
北大核心
2009年第7期1050-1054,1058,共6页
Control and Decision
基金
留学基金委出资项目(2006[3074])
法国埃菲尔奖学金项目(625637F)
关键词
网络控制系统
可靠控制
保性能控制
线性矩阵不等式
Networked control system
Fault-tolerant control, Guaranteed cost control, Linear matrix inequality
