An Improved Robust Adaptive Control Design for a Class of Neutral Delay Systems  

作　　者：SUN Xi-Ming SUN Wen-An ZHAO Jun 

机构地区：[1]Key Laboratory of Process Industry Automation, Ministry of Education, School of Information Science and Engineering, Northeastern University, Shenyang 110004

出　　处：《自动化学报》2006年第2期291-295,共5页Acta Automatica Sinica

基　　金：Supported by National Natural Science Foundation of P. R. China (60574013, 60274009) the Natural Science Foundation of Liaoning Province (20032020)

摘　　要：The problem of adaptive robust control is addressed for a class of neutral delay systems. All uncertainties are assumed to be bounded by unknown constants. An improved adaptation law is proposed to estimate the square of these unknown bounds. Then, by making use of the updated values of the squared unknown bounds, an adaptive controller is designed to make the solution of the resultant closed-loop system uniformly ultimately bounded. Furthermore, this method avoids chattering and improves the performance. An example is given to illustrate the effectiveness of this method.The problem of adaptive robust control is addressed for a class of neutral delay systems. All uncertainties are assumed to be bounded by unknown constants. An improved adaptation law is proposed to estimate the square of these unknown bounds. Then, by making use of the updated values of the squared unknown bounds, an adaptive controller is designed to make the solution of the resultant closed-loop system uniformly ultimately bounded. Furthermore, this method avoids chattering and improves the performance. An example is given to illustrate the effectiveness of this method.

关 键 词：中立延迟系统 鲁棒自适应控制 最终有界性 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]