一种网络化控制系统的鲁棒H_∞动态输出反馈控制

Robust H_∞ dynamic output feedback control for a kind of networked control systems

对于存在网络诱导控制时延和输出时延的网络化控制系统,在离散域内给出了网络化控制系统的一种时延相关的动态输出反馈控制方法.针对无扰动和有扰动的系统,分别基于Lyapunov稳定性理论和线性矩阵不等式方法,推导出闭环系统稳定的充分条件,并给出了鲁棒最优和次优控制律的设计方法.仿真结果表明,所提出方法能实现稳定控制和有效的干扰抑制作用.

Networked control system with network-induced control and output time delay is considered. A kind of time dependent dynamic output feedback control method is presented in discrete domain. Then the sufficient conditions for stabilization of close loop system via the proposed feedback control method are derived for the case of disturbance and non-disturbance. The design methods of optimal and suboptimal control are also given respectively. Simulation results show that the proposed methods can realize stable control and effective disturbance attenuation.