不确定关联大系统分散鲁棒H_∞输出反馈控制器设计  

Decentralized Robust H_∞ Output Feedback Controller Design for Uncertain Largr-scale Interconnected Systems

作　　者：蒋朝辉[1] 桂卫华[1] 谢永芳[1] 

机构地区：[1]中南大学信息科学与工程学院,湖南长沙410083

出　　处：《计算技术与自动化》2005年第4期1-5,共5页Computing Technology and Automation

基　　金：国家自然科学基金资助项目(60474003)

摘　　要：针对一类状态矩阵和控制矩阵存在参数不确定性关联大系统,研究其分散鲁棒H∞输出反馈控制问题。基于有界实引理将其鲁棒分散H∞动态输出反馈控制器的解归结为一个非线性矩阵不等式(NL-MI),采用同伦迭代算法求解该控制器,使大系统鲁棒稳定,并且满足给定的H∞性能指标。This paper considers a robust decentralized H∞ output feedback control problem for large - scale interconnected systems with uncertainty in state and control matrices. A design method based on the bounded real lemma is developed for a dynamic output feedback controller, which is reduced to a feasibility problem for a nonlinear matrix inequality （NLMI）. The controller is solved iteratively by homotopy method , which can make the large - scale system robust stable and satisfy given H∞ perfomance.

关 键 词：同伦算法 不确定性 分散H∞控制 输出反馈 非线性矩阵不等式 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]