时滞独立的网络控制系统H_∞控制器设计  

Design of H_∞ controller for delay independent network control system

作　　者：李丽春[1] 蒋静坪[1] 于晓明[1] 

机构地区：[1]浙江大学电气工程学院,浙江杭州310027

出　　处：《机电工程》2007年第8期42-43,79,共3页Journal of Mechanical & Electrical Engineering

摘　　要：介绍了网络控制系统中的时滞独立系统。利用Lyapunov稳定性定理和线性矩阵不等式(LMI)工具给出了H∞控制器存在的时滞独立网络控制系统的充分条件。通过求解一个具有线性矩阵不等式的凸优化问题,得出γ最小的H∞控制率。仿真实验结果显示,整个系统对干扰信号有较好的抑制作用。Delay independent system of network control system was introduced. The sufficient conditions of the H∞ controller for delay-independent network control systems were given by using the Lyapunov stability theory and the linear matrix inequality （LMI） technique. And the H∞ controller which had the least γ value was gotten by solving a convex optimization problem satisfying linear matrix inequalities. The simulation experiment shows that the whole system has a good performance to reduce the influence of the disturbance.

关 键 词：网络控制系统 时滞独立 线性矩阵不等式 H∞控制器 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程]