Hybrid bond graph modelling of multi-source system for green hydrogen production

This paper proposes a Bond Graph (BG) model of a multi-source system (Wind Turbine (WT) and Solar Photovoltaic Panels (PV)) used to produce hydrogen from the water electrolysis. BG, as an unified and multidisciplinary tool, is a well suited tool for representing multi-physic dynamical systems based on power exchange. In this work, the approach is adapted for the Hybrid Renewable Energy Systems (HRES) by defining new appropriate BG elements to the per-existent library, these new elements allow covering wide class of the HRES systems sharing common structural characteristics. A simulator is built from the BG model of the multi-source system. It allows testing different operating modes according to weather conditions, user needs and safety measures.