Analytical Study of Open-ended Winding Induction Machines Supplied by Fuel Cells and Batteries for Hydrogen Trains

This paper focuses on a new traction system for hydrogen trains supplied by fuel cells and batteries for non-electrified lines. In this topology, the DC/DC converters of the fuel cell and the battery are removed and the motor is fed with open windings from 2 inverters, one for the fuel cell and the other for the battery. The main objective of this study is to understand analytically the main advantages obtained in terms of reduction of the total apparent power of the converters used in the traction systems and evaluate theoretically the constraints on the voltage and current of the 2 inverters.