摘要
利用全阶线性观测器稳定同时具有网络诱导时延和数据包丢失的网络化控制系统并提高系统的动态性能。将数据包丢失看成一种特殊的时延,得到了系统总时延;采用增广状态向量的方法,分别建立了总时延是采样周期整数倍和不是采样周期整数倍的系统模型;利用李雅普诺夫函数,得到了系统渐近稳定的充分条件;通过解一组线性矩阵不等式,得到了控制器的参数。仿真结果也表明了所提方法的有效性。
A full-order linear observer was utilized to stabilize the networked control systems with network-induced delays and data packet losses and improve their dynamic performance. The total delay was obtained by considering a data -packet loss as a special kind of network -induced delay, a model in which the total delay was integer times of a sampling period and the other model in which the total delay was not integer times of a sampling period were established through employing an augmented state vector method, the sufficient asymptotically stable condition for the systems was derived by using a Lyapunov function and the controller ’s parameters were obtained by solving a set of linear matrix inequalities. Simulation results illustrated the validity of the proposed method.
出处
《微计算机信息》
2009年第12期108-109,139,共3页
Control & Automation
关键词
网络化控制系统
时延
数据包丢失
全阶线性观测器
networked control systems
time delay
data-packet loss
full-order linear observer
