Optimal Design of Energy Storage System Using Different Battery Technologies for FCEV Applications

The aim of this paper focuses on optimal sizing of Energy Storage System (ESS) based on Fuel cell using different battery technologies for Fuel Cell Electric Vehicles (FCEV) applications. The main objective consists to optimize ESS sizes, cost with a longer lifecycle for a Fuel Cell Electric Vehicle with 650 km driving cycle range. In this way, we study the influence of battery technologies which is considered as a secondary source on the storage system characteristics. The obtained results show that considerable gains have been achieved in terms of weight, volume and cost using Ultra High Power (UHP) technology comparatively with high power and high energy technologies. Otherwise, an experimental validation is carried out to complement the simulation results via a 1 kW test bench with Hardware In the Loop approach. As expected, UHP technology confirms its capabilities of decreasing the applied stress on the fuel cell and consequently reduces the hydrogen consumption.