A difference-algebraic interval observer design for perturbed discrete-time descriptor systems

被引：1

作者：

Liu, Long-wen ^{[1
]}

Xie, Wei ^{[1
,2
,3
]}

Zhang, Lang-wen ^{[1
,4
]}

机构：

[1] South China Univ Technol, Coll Automat Sci & Technol, Guangzhou 510641, Peoples R China

[2] Minist Educ, Key Lab Autonomous Syst & Networked Control, Guangzhou 510641, Peoples R China

[3] South China Univ Technol, Unmanned Aerial Vehicle Syst Engn Technol Res Ctr, Guangzhou 510641, Peoples R China

[4] Minist Educ, Key Lab Syst Control & Informat Proc, Shanghai 200240, Peoples R China

来源：

EUROPEAN JOURNAL OF CONTROL | 2023年 / 69卷

关键词：

Difference-algebraic structure; Interval observer; Descriptor system; Triangular block transformation; ROBUST FAULT ESTIMATION; LPV SYSTEMS;

D O I：

10.1016/j.ejcon.2022.100762

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 investigates a difference-algebraic (DA) interval observer (IO) design technique for perturbed discrete-time descriptor systems. The existence condition of the IO with a DA structure is first estab-lished, along with the canonical implementation of descriptor systems and its non-negativity criterion. Then, combined with such an IO, a triangular block transformation (TBT) is further introduced to reduce the universal IO design conservatism on cooperativity construction. Besides, the general and particular solutions to the TBT&DA-based IO are successively proposed not only to clearly show the available design parameters but also to achieve a convenient construction process. Three simulation results demonstrate the validity and superiority of the proposed methods. (c) 2022 European Control Association. Published by Elsevier Ltd. All rights reserved.

引用

页数：10

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