Intermediate observer based simultaneous estimation of system states and multiple faults

被引：0

作者：

Shi, Jiantao ^{[1
]}

Chen, Xiang ^{[1
]}

Chen, Chuang ^{[1
]}

Shen, Mouquan ^{[1
]}

机构：

[1] Nanjing Tech Univ, Coll Elect Engn & Control Sci, Nanjing 211816, Peoples R China

来源：

IET CONTROL THEORY AND APPLICATIONS | 2023年 / 17卷 / 12期

关键词：

estimation theory; fault diagnosis; observers; SUGENO FUZZY-SYSTEMS; TOLERANT CONTROL; DIAGNOSIS; DESIGN;

D O I：

10.1049/cth2.12501

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper, an intermediate observer is proposed for simultaneously estimating the system state, actuator fault and sensor fault. The necessary and sufficient condition is given with respect to the existence of the designed observer. The observer gain matrix is guaranteed through solving Riccati inequalities. The estimation errors of the system state, actuator fault and sensor fault are proved to be globally uniformly stable with the prescribed performance index. Finally, a simulation study is given to verify the effectiveness of the proposed method.

引用

页码：1739 / 1747

页数：9

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