Semiglobal Stabilization via Output-feedback for a Class of Uncertain Nonlinear Systems  

作　　者：LIU Meng-Liang LIU Yun-Gang 

机构地区：[1]School of Control Science and Engineering, Shandong University,Jinan 250061, China

出　　处：《自动化学报》2013年第12期2154-2159,共6页Acta Automatica Sinica

基　　金：Supported by National Natural Science Foundations of China （61325016, 61273084, 61233014）, Natural Science Foundation for Distinguished Young Scholar of Shandong Province of China （JQ200919）, and the Independent Innovation Foundation of Shan- dong University （2012JC014）

摘　　要：这份报纸为不明确的非线性的系统的一个班经由产量反馈认为 semiglobal 是稳定。与存在结果不同，在调查下面的系统拥有更严肃的非线性和实质地增加产量反馈的困难的未知控制系数控制器设计。联合 backstepping 方法和产量反馈支配途径，稳定控制器的 semiglobal 明确地被给，它能保证靠近环的系统在设计参数的适当选择下面完成 semiglobal asymptotic 稳定性。一个模拟例子验证理论结果和建议途径。This paper considers the semiglobal stabilization via output-feedback for a class of uncertain nonlinear systems. Dif- ferent from the existing results, the systems under investiga- tion possess more serious nonlinearities and unknown control coefficients which substantially increase the difficulty of output- feedback controller design. Combining the backstepping method and output-feedback domination approach, a semiglobal stabi- lizing controller is explicitly given, which can guarantee that the closed-loop system achieves the semiglobal asymptotic stability under the appropriate choice of design parameter. A simula- tion example validates the theoretical results and the proposed approach.

关 键 词：不确定非线性系统 输出反馈控制器 半全局镇定 全局渐近稳定性 全局稳定 控制系数 参数选用 闭环系统 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置] TP271[自动化与计算机技术—控制科学与工程]