时变不确定离散时滞系统的H_∞鲁棒控制  

H_∞ robust control of discrete time-delay systems with time-varying uncertainty

作　　者：李志虎[1] 王景成[2] 邵惠鹤[2] 

机构地区：[1]中兴通讯股份有限公司,广东深圳518057 [2]上海交通大学自动化系,上海200030

出　　处：《控制理论与应用》2003年第1期139-142,共4页Control Theory & Applications

摘　　要：研究了一类线性不确定离散时滞系统的H∞ 鲁棒控制问题 ,其时变不确定项是范数有界的 ,但无需满足匹配条件 .基于线性矩阵不等式 (LMI)方法 ,得到了可H∞ 鲁棒镇定的一个充分条件 .通过求解一个特定的线性矩阵不等式 ,即可获得H∞ 状态反馈控制器 .The problem of H ∞ robust control for a class of linear uncertain discrete time_delay systems is studied. The time_varying uncertainties are assumed to be norm_bounded and requires no matching condition. Based on linear matrix inequalities (LMI) approach, a sufficient condition for the systems to be H ∞ stabilizable is presented. By solving a certain linear matrix inequality, the H ∞ state feedback controllers are obtained. A numeric example is given to demonstrate the effectiveness of the method.

关 键 词：时变不确定离散时滞系统 H∞鲁棒控制 线性矩阵不等式 状态反馈控制器 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程]