网络控制系统H_∞鲁棒控制器设计  

Design of robust H_∞ controller for networked control systems

作　　者：陆仲达[1] 田群宏[1] 王俊科[1] 徐凤霞[1] 

机构地区：[1]齐齐哈尔大学计算机与控制工程学院,黑龙江齐齐哈尔161006

出　　处：《计算机应用研究》2014年第2期472-475,共4页Application Research of Computers

基　　金：黑龙江省教育厅科学技术研究项目(11551537)

摘　　要：针对存在不确定时延的网络控制系统,将未知扰动和建模误差转换为满足给定约束的矩阵,建立具有参数不确定性的网络控制系统模型。基于Lyapunov稳定性理论证明控制系统渐近稳定,结合线性矩阵不等式完成H∞鲁棒控制器设计。通过仿真实验,比较在不同时延条件下系统的状态响应曲线,结果证明所设计的H∞鲁棒控制器可以解决系统中存在不确定建模误差、干扰和时延等问题,具有一定的鲁棒性。For the networked control systems with uncertain time delay, the unknown disturbances and the modeling error were transformed into the matrix which met the given constraint condition, this paper set up the model of parameter uncertainty net- worked control systems. Based on Lyapunov stability theory,it proved the asymptotic stability for the system, and designed the robust H∞ controller by using LMI. In the simulation experiment,it compared the state response under diverse time delay conditions, and the results show that the robust H∞ controller has the robustness and can solve the uncertainties of modeling error, dis- turbance and time delay for the control systems.

关 键 词：不确定时延 LYAPUNOV函数 线性矩阵不等式 H∞鲁棒控制器 鲁棒性 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]