Output feedback preview control for polytopic uncertain discrete-time systems with time-varying delay

被引：19

作者：

Li, Li ^{[1
,3
,4
]}

Yuan, Yuanlong ^{[2
]}

机构：

[1] Hubei Univ Econ, Sch Informat Management & Stat, Wuhan 430205, Hubei, Peoples R China

[2] Agr Univ Jiangxi, Sch Sci, Nanchang, Jiangxi, Peoples R China

[3] Hubei Univ Econ, Collaborat Innovat Ctr China Pilot Reform Explora, Wuhan 430205, Hubei, Peoples R China

[4] Hubei Univ Econ, Assessment Hubei Sub Ctr, Wuhan 430205, Hubei, Peoples R China

来源：

INTERNATIONAL JOURNAL OF ROBUST AND NONLINEAR CONTROL | 2019年 / 29卷 / 09期

基金：

中国国家自然科学基金;

关键词：

augmented error system; output feedback; polytopic uncertainties; preview control; time-varying delay; H-INFINITY CONTROL; NONLINEAR-SYSTEMS; TRACKING CONTROL; DESIGN;

D O I：

10.1002/rnc.4524

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 considers the preview tracking control problem of polytopic uncertain discrete-time systems with a time-varying delay subject to a previewable reference signal. First, a model transformation is employed and a discrete-time system with a time-invariant delay and an external disturbance is obtained. The difference operator method can be extended to derive an augmented error system that includes future information on the reference signal. Then, a previewable reference signal is fully utilized through reformulation of the output equation while considering the output feedback. Based on the small gain theorem, a static output feedback controller with preview actions is designed such that the output can asymptotically track the reference signal. Finally, numerical simulation examples also illustrate the superiority of the desired preview controller for the uncertain system in the paper.

引用

页码：2619 / 2638

页数：20

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