摘要
针对一类不确定的短时延网络控制系统,利用全阶状态观测器作为对网络诱导时延的补偿,定义了一个新的状态变量,得到了短时延网络控制系统的离散模型.根据Lyapunov稳定性理论和矩阵知识,给出了该闭环系统渐近稳定的充分条件,并基于线性矩阵不等式的可行解给出了状态反馈控制律.仿真结果表明该方法有效可行.
Considering a class of uncertain networked control systems with short time-delay,it proposes a discrete model,in which a full-order observer is utilized to compensate network-induced delay,by defining an augmented state vector,based on Lyapunov stability theory and matrix theory.Sufficient conditions for asymptotic stability of closed-loop systems were derived,and the state feedback controller was obtained,based on the feasible solution of the linear matrix inequalities(LMI).The simulation results verify the validity of the proposed method.
出处
《广东工业大学学报》
CAS
2010年第4期85-88,共4页
Journal of Guangdong University of Technology
关键词
网络控制系统
不确定时延
线性矩阵不等式
全阶状态观测器
李亚普诺夫函数
networked control systems
uncertain time-delay
linear matrix inequalities
full-order observer of the state
Lyapunov function