Sujet de thŁse de doctorat Model Ageing Fuel cell System

Context A wide deployment of the fuel cell systems (FCS) cannot be achieved unless these systems are competitive with conventional solutions in terms of performance, cost and lifetime. As a matter of fact, the FCS must offer good performance and reliability at acceptable cost. Therefore, it is necessary to develop robust systems that are tolerant to faults with a minimal ageing rate. It is therefore necessary to apprehend and master the operation, degradation and ageing of these systems, in order to anticipate faults and failures. Setting up reliable health indicators is a key point. Pronostics and Health Management (PHM) allows to monitor and predict the future behavior of a system and its Residual Useful Lifetime RUL in order to take appropriate decisions on control to counteract the faulty operation states. Within the SHARPAC team (part of the Energie department of FEMTO), numerous research works have been conducted on Prognostics of Fuel Cells, making the team one of the leaders on that topic at the international level [1, 2, 3, 4, 5]. However very few works on prognostics take into account the effect of degraded and aged components of the BoP. In fact, apprehending the ageing of the whole FCS could be very challenging, because the multi-physics, multi-scale characteristics of these systems brings up strong interactions and coupling between the components and parameters.