Research on Key Technologies of Hydrogen Energy Powered Commuter Trains

Hydrogen energy trains have the characteristics of energy conservation, environmental protection, and operating without overhead lines, which are in accord with the development trend of green rail transit and provide ideal solutions for non-electrified lines. The hydrogen energy system inputs hydrogen and oxygen in a certain ratio into the hydrogen fuel cell, which is converted into electrical energy through chemical reactions and discharged into water. The hydrogen energy system, combined with energy storage system, not only rapid response to vehicle power demand but also absorb regenerative braking energy reliably and efficiently. This article elaborates on the key technologies of hydrogen powered commuter trains from three aspects: vehicle integration technology, energy management and control, fault diagnosis and safety protection, providing effective reference for the design of hydrogen powered rail vehicles in the future.