Static anti-windup design for a class of nonlinear systems

被引:46
|
作者
Gomes da Silva, J. M., Jr. [1 ]
Oliveira, M. Z. [1 ,2 ]
Coutinho, D. [3 ]
Tarbouriech, S. [4 ,5 ]
机构
[1] Univ Fed Rio Grande do Sul, Dept Elect Engn, BR-90035190 Porto Alegre, RS, Brazil
[2] Univ Caxias do Sul UCS, BR-95050560 Caxias Do Sul, RS, Brazil
[3] Univ Fed Santa Catarina, Dept Automat & Syst, BR-88040900 Florianopolis, SC, Brazil
[4] CNRS, LAAS, F-31400 Toulouse, France
[5] Univ Toulouse, LAAS, F-31400 Toulouse, France
关键词
LYAPUNOV FUNCTIONS; STABILITY ANALYSIS; SATURATING ACTUATORS; RATIONAL SYSTEMS; CONTROL SCHEMES; LINEAR-SYSTEMS; ATTRACTION; DOMAIN;
D O I
10.1002/rnc.2917
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
This paper focuses on the problem of static anti-windup design for a class of multivariable nonlinear systems subject to actuator saturation. The considered class regards all systems that are rational on the states or that can be conveniently represented by a rational system with algebraic constraints considering some variable changes. More precisely, a method is proposed to compute a static anti-windup gain which ensures regional stability for the closed-loop system assuming that a dynamic output feedback controller is previously designed to stabilize the nonlinear system. The results are based on a differential algebraic representation of rational systems. The control saturation effects are taken into account by the application of a generalized sector bound condition. From these elements, LMI-based conditions are devised to compute an anti-windup gain with the aim of enlarging the closed-loop region of attraction. Several numerical examples are provided to illustrate the application of the proposed method. Copyright © 2012 John Wiley & Sons, Ltd. Copyright © 2012 John Wiley & Sons, Ltd.
引用
收藏
页码:793 / 810
页数:18
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