Title :
Actuator faults estimation using adaptive Luenberger Bond Graph observer
Author :
Najari, Hajer ; El Harabi, Rafika ; Abdelkrim, Mohamed Naceur
Author_Institution :
Nat. Eng. Sch. of Gabes, Gabes Univ., Gabes, Tunisia
Abstract :
A new method of adaptive Luenberger observer design used on actuator fault detection and estimation is investigated. This approach is based on Bond Graph representation which is a multidisciplinary tool characterised by its causal, behavioral and structural properties for control and diagnosis analysis. Thus, the necessary existence conditions are taking in consideration. An hydraulic system with two backs is considered to ensure the efficiency of the proposed graphical observer.
Keywords :
actuators; bond graphs; fault diagnosis; actuator fault detection; actuator faults estimation; adaptive Luenberger bond graph observer; bond graph representation; control analysis; diagnosis analysis; hydraulic system; Actuators; Biological system modeling; Fault detection; Hydraulic systems; Observers; Vectors;
Conference_Titel :
Electrical Sciences and Technologies in Maghreb (CISTEM), 2014 International Conference on
DOI :
10.1109/CISTEM.2014.7076935
