Bond Graph for modeling and diagnostics of Proton Exchange Membrane Fuel Cell

International audienceProton Exchange Membrane Fuel Cell is a complex multiphysical system exhibiting complex and coupledphenomenon from several domains of energies (e.g. electrochemical, electrical, thermal, and hydraulic). However, thispromising energy converter is vulnerable to faults (such as drying of the membrane, default of the cooling system andflooding) that can cause permanent damage. Moreover, the performance of the fuel cell is continuously affected by itsaging. Therefore, it is essential to implement techniques to detect and isolates those faults. This paper proposes the useof Bond Graph as an integrated tool for the modeling and the generation of fault indicator for this multi-physicalsystem. A diagnostic procedure is also detailed based on the complex structural and dynamical properties in order toisolate a set of single fault