  The urgency of the energy transition requires improving the performance and
longevity of hydrogen technologies. AlphaPEM is a dynamic one-dimensional (1D)
physics-based PEM fuel cell system simulator, programmed in Python and
experimentally validated. It offers a good balance between accuracy and
execution speed. The modular architecture allows for addition of new features,
and it has a user-friendly graphical interface. An automatic calibration method
is proposed to match the model to the studied machine. The software provides
information on the internal states of the system in response to any current
density and can produce polarization and EIS curves. AlphaPEM facilitates the
use of a model in embedded conditions, allowing real-time modification of the
fuel cell's operating conditions.
