不确定关联大系统的自适应H_∞控制  

Adaptive H_∞ control of uncertain large-scale interconnected systems

作　　者：冯慧丽[1] 胡何丽[1] 徐兆棣[1] 

机构地区：[1]沈阳师范大学数学与系统科学学院,辽宁沈阳110034

出　　处：《沈阳师范大学学报（自然科学版）》2005年第1期16-19,共4页Journal of Shenyang Normal University:Natural Science Edition

基　　金：辽宁省自然科学基金资助项目(2001101026).

摘　　要：研究一类具有时滞的非线性不确定关联大系统的鲁棒控制问题.假设不确定时变参数为半线性系统结构的有界输出,通过对时变不确定参数设计自适应律,从而对不确定参数进行估计,并且使系统满足H∞扰动衰减度.利用线性矩阵不等式(LMI)方法设计出鲁棒自适应H∞控制器.数值实例及仿真结果表明了该方法的有效性和可行性.In this paper,the problem of robust control is investigated for a class of uncertain large-scale interconnected systems.Supposing that time variant uncertainties are the bounded output of quasilinear systems,it is shown that bounded uncertainties from an exo-system can be estimated as a globally stabilizing robust control and satisfies a given disturbance attenuation H_∞ performance.By using LMI,a type of robust adaptive H_∞ controller is developed.Numerical example and simulating results are given showing the validity and feasibility of the approach.

关 键 词：关联大系统 自适应控制 线性矩阵不等式 H∞控制 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]