A Simplified Fuel Cell Model for System Analysis and Performance Simulation

This paper proposes a new method by using a simplified AMESim and Python co-simulation model. Based on the existing test data and relevant experience, the simulation and optimization have carried out, and two working modes, Power-mode and Eco-mode, were defined. Based on these two working modes, a vehicle model was built, and a preliminary vehicle economy analysis was conducted. According to the simulation results, when the system output current in the range of 100~300A, the hydrogen utilization rate and system total efficiency of the Eco-mode is about 1.5% and 3.5% higher than the Power-mode, respectively, while the output power would decrease by about 8%. For the vehicle model, the simulation analysis of two-cycle conditions, NEDC, and EPA were carried out. The results showed that the hydrogen consumption rate of these two working modes was not evident under the NEDC condition, which was 1087g/100km and 1080g/100km, respectively. Under EPA condition, due to the high power demand of fuel cell, the difference in hydrogen consumption between these two working modes is highlighted, which are 1060g/100km for Power-mode and 997g/100km for Eco-mode.