Composite nonlinear feedback control for output regulation problem of linear discrete-time systems with input saturation

被引：4

作者：

Wang, Chongwen ^{[1
]}

Chu, Xing ^{[2
]}

Lan, Weiyao ^{[2
]}

机构：

[1] Beijing Inst Technol, Sch Software, Beijing 100081, Peoples R China

[2] Xiamen Univ, Dept Automat, Xiamen 361005, Peoples R China

来源：

JOURNAL OF SYSTEMS ENGINEERING AND ELECTRONICS | 2014年 / 25卷 / 06期

基金：

中国国家自然科学基金;

关键词：

output regulation; composite nonlinear feedback; input saturation; transient performance; discrete-time system; TRANSIENT PERFORMANCE; SINGULAR SYSTEMS; TRACKING CONTROL; IMPROVEMENT; SUBJECT; DESIGN;

D O I：

10.1109/JSEE.2014.00120

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Transient performance for output regulation problems of linear discrete-time systems with input saturation is addressed by using the composite nonlinear feedback (CNF) control technique. The regulator is designed to be an additive combination of a linear regulator part and a nonlinear feedback part. The linear regulator part solves the regulation problem independently which produces a quick output response but large oscillations. The nonlinear feedback part with well-tuned parameters is introduced to improve the transient performance by smoothing the oscillatory convergence. It is shown that the introduction of the nonlinear feedback part does not change the solvability conditions of the linear discrete-time output regulation problem. The effectiveness of transient improvement is illustrated by a numeric example.

引用

页码：1043 / 1055

页数：13

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