Robust Fault Diagnosis Observer of Dynamical Systems Modelled by Bond Graph Approach

Abstract

This paper proposes a robust diagnosis observer of dynamical systems modeled by Bond Graph approach. The observer design is achieved by using graphical methods taking advantage of structural properties of the bond graph model. The fault indicators are generated in the presence of parameter uncertainties. Simulation results are used to show the dynamic behavior of system variables and to evaluate the performance of the observer for fault diagnosis.