Modelling and Simulation PEM Fuel Cells for Dynamical Electrical Systems in Aircrafts LM-100J Commercial Freighter

Rashmi Sonia

Abstract: Dynamics of proton exchange membrane fuel cells (PEMFC) with hydrogen storage system for generating part of airplanes electrical energy is presented. Viability of using fuel cell (FC) for this airplane is estimated by means of simulations. Temperature change and dual layer capacity effect are considered in all simulations. Using a three-level 3-phase inverter, FC?s output voltage is connected to the indispensable bus of the airplane. Moreover, it is possible to connect FC?s output voltage to airplane DC bus on the other hand. PID controller is presented to control flow of hydrogen and oxygen to FC and improve momentary and steady state responses of the output voltage to load turbulences. FC?s output voltage is regulated via an ultra-capacitor. Simulations are carried out in PYTHON and results show that the load tracking and output voltage regulation are acceptable. The proposed system utilizes an electrolyser to generate hydrogen and a tank for storage. Therefore, there is no need for batteries. Moreover, the generated oxygen could be used in other applications in airplane.

Keywords: python, PID Controller, PEMFC, Simulation graphs, system components of Hercules planes