Robust Control for Uncertain Nonlinear Feedback Systems Using Operator-based Right Coprime Factorization  

作　　者：Ni Bu Wei Chen Longguo Jin Yandong Zhao 

机构地区：[1]IEEE [2]the College of Automation and Electronic Engineering, Qingdao University of Science and Technology [3]Haier School of Qingdao Technical College

出　　处：《IEEE/CAA Journal of Automatica Sinica》2019年第3期824-829,共6页自动化学报（英文版）

基　　金：supported by the National Natural Science Foundation of China(61304093,61472195)

摘　　要：The robust control issue for uncertain nonlinear system is discussed by using the method of right coprime factorization. As it is difficult to obtain the inverse of the right factor due to the high nonlinearity, the proving of the Bezout identity becomes troublesome. Therefore, two sufficient conditions are derived to manage this problem with the nonlinear feedback system as well as that with the uncertain nonlinear feedback system under the definition of Lipschitz norm. A simulation of temperature control is given to demonstrate the validity of the proposed method.The robust control issue for uncertain nonlinear system is discussed by using the method of right coprime factorization. As it is difficult to obtain the inverse of the right factor due to the high nonlinearity, the proving of the Bezout identity becomes troublesome. Therefore, two sufficient conditions are derived to manage this problem with the nonlinear feedback system as well as that with the uncertain nonlinear feedback system under the definition of Lipschitz norm. A simulation of temperature control is given to demonstrate the validity of the proposed method.

关 键 词：BEZOUT IDENTITY NONLINEARITY RIGHT coprime FACTORIZATION (RCF) robust control 

分 类 号：TP[自动化与计算机技术]