An LMI approach to design robust fault detection observers

Author

Zhong, Maiying ; Ding, Steven X. ; Bingyong, Tang ; Jeinsch, Torstern ; Sader, Mario

Author_Institution

Control Sci. & Eng. Sch., Shandong Univ., Jinan, China

Volume

4

fYear

2002

fDate

2002

Firstpage

2705

Abstract

In this contribution, the robust fault detection observer design problem for LTI systems with both disturbances and modelling errors are studied. The basic idea of our study is to split the system state into plant state and the so called fault state, while the fault state is used to diagnose the occurrence of the fault. Then the main task of FDI becomes the fault state optimal estimation problem. Based on this, the FDI observer design problem is finally formulated as a two-objective H_∞-optimization and the LMI approach is developed. An illustrated numerical example is also presented to demonstrate the effectiveness of the proposed approach.

Keywords

H^∞ control; H^∞ optimisation; fault diagnosis; matrix algebra; observers; robust control; time-varying systems; FDI; LMI approach; LTI systems; disturbances; fault state; fault state optimal estimation; linear matrix inequalities; modelling errors; plant state; robust fault detection observer design; two-objective H infinity optimisation; Design engineering; Electrical fault detection; Engineering management; Error correction; Fault detection; Filters; Observers; Robust control; Robustness; State estimation;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Control and Automation, 2002. Proceedings of the 4th World Congress on

Print_ISBN

0-7803-7268-9

Type

conf

DOI

10.1109/WCICA.2002.1020006

Filename

1020006