离散线性系统的鲁棒H_∞状态反馈控制  

Robust H_∞ State Feedback Control of Discrete System

作　　者：蒋丽英[1] 李平[1] 王蕾[1] 

机构地区：[1]抚顺石油学院信息工程分院,辽宁抚顺113001

出　　处：《控制工程》2002年第4期79-81,94,共4页Control Engineering of China

摘　　要：针对具有有界不确定性和未知时滞的离散系统 ,设计鲁棒H∞ 状态反馈控制器。基于代数Ric cati不等式方程 ,给出使闭环传递函数的H∞ 范数小于给定界γ和闭环系统渐近稳定的充分条件。In this paper, it is presented that a robust H ∞ controller for the discrete system with uncertain parameters and unknown delays in both state and control. Based on algebraic Riccati inequation, a sufficient condition is given that H ∞ norm bound of the closed-loop transfer function is less than a prescribed lever γ and closed-loop system is asymptotic stabilization. A simulation example shows the efficiency of the result.

关 键 词：离散线性系统 鲁棒H∞状态反馈控制 代数Riccati不等式方程 渐近稳定 不确定性 

分 类 号：TP271.8[自动化与计算机技术—检测技术与自动化装置]