基于输出反馈的一类大型互联非线性系统的鲁棒全局实际镇定  

Robust Global Practical Stabilization of a Class of Large-scale Interconnected Nonlinear Systems via Output Feedback

作　　者：傅勤[1] 吴健荣[1] 

机构地区：[1]苏州科技学院数理学院,江苏苏州215009

出　　处：《应用数学》2010年第3期610-617,共8页Mathematica Applicata

基　　金：江苏省高校自然科学研究项目(09KJD120004);苏州科技学院重点学科基金项目

摘　　要：本文研究基于输出反馈的一类大型互联非线性不确定系统的鲁棒全局实际镇定问题,该系统的非线性互联项满足小于一次的增长性条件,通过构造每个子系统收敛的状态观测器,并对观测器的状态作线性变换,得到鲁棒分散输出反馈控制器.当输出反馈控制律作用于该系统时,闭环系统是全局实际稳定的.This paper studies the problem of robust global practical stabilization for a class of large-scale interconnected nonlinear systems with uncertainties via output feedback. The nonlinear interconnections of the systems satisfy the growth condition which is less than one. The decentralized output feedback controllers are obtained by designing a convergent state observer of each subsystem and using the linear transformation of the states of each observer. When the output feedback control laws are applied to the systems, the closed-loop systems are global practical stable.

关 键 词：大型互联系统 输出反馈 分散控制 全局实际镇定 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程]