Observer Design and Unknown Input Reconstruction for a Class of Switched Descriptor Systems

被引：54

作者：

Hou, Yongjian ^{[1
]}

Zhu, Fanglai ^{[1
]}

Zhao, Xudong ^{[2
,3
]}

Guo, Shenghui ^{[1
]}

机构：

[1] Tongji Univ, Coll Elect & Informat Engn, Shanghai 201804, Peoples R China

[2] Dalian Univ Technol, Coll Control Sci & Engn, Dalian 116024, Peoples R China

[3] Bohai Univ, Coll Engn, Jinzhou 121013, Peoples R China

来源：

IEEE TRANSACTIONS ON SYSTEMS MAN CYBERNETICS-SYSTEMS | 2018年 / 48卷 / 08期

关键词：

High-order sliding mode observers; reduced-order observer; switched descriptor systems; unknown input reconstruction; LINEAR-SYSTEMS; STATE ESTIMATION; FAULT-DETECTION; REDUCED-ORDER; H-INFINITY; DIFFERENTIATION;

D O I：

10.1109/TSMC.2017.2679345

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 correspondence paper is concerned with observer design problems for a class of unknown input switched descriptor systems under average dwell time switching signals. The switched descriptor system under consideration is first transformed into a general switched linear system. and then a switched reduced-order observer that can asymptotically estimate the system state without suffering the influence from the unknown inputs is developed. Besides, a high-order sliding mode observer is introduced to obtain the estimations of the output derivatives by using the system measured outputs. On the basis of estimations of the stales and output derivatives, an unknown input reconstructing method is provided. Finally. two examples are presented to verify the effectiveness of the proposed approaches.

引用

页码：1411 / 1419

页数：9

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