| Title |
Research on Control Power Supplies for Fuel Cell-Powered Hydrogen Trains in Green Railway Systems |
| Authors |
김휘문(Hwi-Mun Kim) ; 김다운(Da-Un kim) ; 최문섭(Moon-Seop Choi) ; 여정현(Jung-Hyun Yeo) ; 박진혁(Jin-Hyuk Park) ; 류준형(Joon-Hyoung Ryu) ; 김정은(Chong-Eun Kim) |
| DOI |
https://doi.org/10.5370/KIEE.2025.74.12.2377 |
| Keywords |
Hydrogen Trains; Fuel Cell; Control Power Supply; Isolated DC/DC Converter |
| Abstract |
Hydrogen fuel cell-powered trains are gaining attention as an eco-friendly railway solution. While fuel cells provide high efficiency, their voltage fluctuations and slow dynamic response can affect controllers and auxiliary systems. To address this, isolated DC/DC converters are applied to suppress ripple and noise, ensuring stable power supply. These converters also mitigate high-frequency noise and surge currents, enhancing system reliability. This paper analyzes the roles of fuel cells, batteries, and DC/DC converters, and proposes design considerations to control voltage variations and electromagnetic interference (EMI) for stable operation of railway electronics. Such power technologies improve controller and communication device performance, contributing to overall system stability and efficiency. By enabling reliable power delivery, they provide a foundation for commercializing hydrogen fuel cell systems, with significant implications for the future of hydrogen-powered trains. This study is expected to make a practical contribution to the advancement of power conversion and control technologies and the enhancement of system reliability for the commercialization of hydrogen-powered trains. Furthermore, it is anticipated to provide a foundational reference for decarbonization in the railway sector and the establishment of a sustainable transportation system. |