The week's pick
Reseach Article
An Active Fault Tolerant Control Strategy based on Bond Graph Adaptive Observers
| International Journal of Computer Applications |
| Foundation of Computer Science (FCS), NY, USA |
| Volume 176 - Number 6 |
| Year of Publication: 2017 |
| Authors: Hajer Najari, Rafika El Harabi, Mohamed Naceur Abdelkrim |
10.5120/ijca2017915631
|
Hajer Najari, Rafika El Harabi, Mohamed Naceur Abdelkrim . An Active Fault Tolerant Control Strategy based on Bond Graph Adaptive Observers. International Journal of Computer Applications. 176, 6 ( Oct 2017), 1-7. DOI=10.5120/ijca2017915631
Abstract
System reliability has become one of the major concerns on industrial systems survey in order to guarantee a system lifecycle far from malfunctions, disturbances and dangers. In this context, Fault Tolerant Control systems are involved in automation engineering issues as a remedy to system reliability troubles. Thereby, we deal in this paper with a graphical Active Fault Tolerant Control (AFTC) law that compensates actuator fault effects, guarantees desirable closed-loop performances and system resilience. This tolerant control law is based on a linear Bond Graph (BG) adaptive observer to detect and estimate failures. This control framework and the adaptive observer are designed by a graphical concept using Bond Graph tool as a useful methodology for multidisciplinary systems and which is based on structural, causal and behavioural properties. To emphasis proposed controller efficiency, an hydraulic system with two tanks is modelled and controlled with and without fault scenarios.
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