Disturbance Rejection for Input-Delay System Using Observer-Predictor-Based Output Feedback Control

被引：31

作者：

Du, Youwu ^{[1
,2
,3
,4
]}

Cao, Weihua ^{[1
,3
]}

She, Jinhua ^{[1
,3
,5
]}

Wu, Min ^{[1
,3
]}

Fang, Mingxing ^{[2
]}

Kawata, Seiichi ^{[4
]}

机构：

[1] China Univ Geosci, Sch Automat, Wuhan 430074, Peoples R China

[2] Anhui Normal Univ, Sch Phys & Elect Informat, Wuhu 241000, Peoples R China

[3] Hubei Key Lab Adv Control & Intelligent Automat C, Wuhan 430074, Peoples R China

[4] Adv Inst Ind Technol, Grad Sch Ind Technol, Tokyo 1400011, Japan

[5] Tokyo Univ Technol, Sch Engn, Tokyo 1920982, Japan

来源：

IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS | 2020年 / 16卷 / 07期

基金：

国家重点研发计划; 中国国家自然科学基金;

关键词：

Delays; Observers; Informatics; Control systems; Automation; Feedback control; Delay effects; Disturbance rejection; equivalent input disturbance (EID); predictive control; predictor-based feedback; state observer; time delay; FINITE SPECTRUM ASSIGNMENT; LINEAR-SYSTEMS; LTI SYSTEMS; STATE; COMPENSATION; STABILITY; SCHEME;

D O I：

10.1109/TII.2019.2947431

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 article addresses the control problem of an open-loop unstable linear time-invariant system with an input delay and an unknown disturbance. An observer-predictor-based control method is presented for such a system in which only output information is available. First, the system state is reconstructed and the disturbance is estimated using the equivalent-input-disturbance approach. Next, the future information on the state and the disturbance is predicted to reduce the effect of the input delay. Then, a new predictive control scheme is developed. The closed-loop system is simplified into two subsystems for analysis. Stability conditions are derived for each subsystem separately. Finally, a comparison with previous approaches through simulations shows the superiority of the presented method over others for disturbance rejection.

引用

页码：4489 / 4497

页数：9

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