Robust Fault Diagnosis by Using Bond Graph Approach

Author

Djeziri, Mohand Arab ; Merzouki, Rochdi ; Bouamama, Belkacem Ould ; Dauphin-Tanguy, Genevieve

Author_Institution

Ecole Centrale de Lille, Villeneuve-d´´Ascq

Volume

12

Issue

6

fYear

2007

Firstpage

599

Lastpage

611

Abstract

This paper deals with the generation of fault indicators and residual thresholds in the presence of parameter uncertainties by using a bond graph representation in linear fractional transformation (LFT) form. The residuals´ sensitivity analysis, which is based on the fault detectability indexes, is used for residuals evaluation. The developed algorithms are applied on an electromechanical test bench system for on-line fault detection and isolation. Simulation and experimental tests show the influence of dead zone magnitude and variations of system parameters on the residuals.

Keywords

bond graphs; fault diagnosis; sensitivity analysis; bond graph approach; bond graph representation; dead zone magnitude; electromechanical test bench system; fault detectability indexes; fault indicators; linear fractional transformation; online fault detection; parameter uncertainty; residual thresholds; robust fault diagnosis; sensitivity analysis; Bonding; Electrical fault detection; Fault detection; Fault diagnosis; Fuzzy logic; Mechatronics; Robustness; Sensitivity analysis; System testing; Uncertain systems; Bond graph; fault detection and isolation (FDI); linear fractional transformation (LFT); mechatronic systems; parameter uncertainties; residuals´ sensitivity analysis;

fLanguage

English

Journal_Title

Mechatronics, IEEE/ASME Transactions on

Publisher

ieee

ISSN

1083-4435

Type

jour

DOI

10.1109/TMECH.2007.912746

Filename

4392830