不确定关联时滞系统基于观测器的鲁棒分散镇定  

Observer-Based Robust Decentralized Stabilization for a Class of Uncertain Interconnected Time-Delay Systems

作　　者：刘晓志[1] 李华[1] 井元伟[1] 张嗣瀛[1] 

机构地区：[1]东北大学信息科学与工程学院,辽宁沈阳110004

出　　处：《东北工学院学报》2004年第6期511-514,共4页

基　　金：国家自然科学基金资助项目(60274009)

摘　　要：讨论了一类不确定关联时滞系统基于状态观测器的鲁棒分散镇定问题·系统的不确定性是未知时变且范数有界的,系统状态及控制输入、互联项中均存在时滞·根据李亚普诺夫稳定性理论,给出了系统可分散输出反馈镇定的充分条件,即一组线性矩阵不等式(LMI)有解·所设计的分散控制器保证系统渐进稳定·仿真结果表明,该方法是有效的·The robust decentralized stabilization based on observer was discussed on a class of uncertain interconnected time-delay systems of which the time-varying parameter uncertainties are unknown and norm-bounded. The delayed terms are found in all the system state, control input and interconnection terms. Based on Lyapunov stability theory and linear matrix inequality (LMI) technique, a decentralized output feedback controller is designed such that the closed loop large-scale interconnected system is asymptotically stable with a sufficient condition for the stability derived in terms of LMIs. The simulation is given to illustrate the validity of the proposed methods.

关 键 词：关联时滞系统 不确定性 动态输出反馈 分散镇定 线性矩阵不等式 状态观测器 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程]