AUTHOR=Zhong Shaoxuan , Yuan Weijian , Liu Xiaoqiang , Cao Jiamu , Zhang Yufeng 

TITLE=Output power regulation system for portable micro fuel cell systems

JOURNAL=Frontiers in Energy Research

VOLUME=Volume 11 - 2023

YEAR=2023

URL=https://www.frontiersin.org/journals/energy-research/articles/10.3389/fenrg.2023.1118743

DOI=10.3389/fenrg.2023.1118743

ISSN=2296-598X

ABSTRACT=This paper presents an output power regulation system for micro fuel cells, to help enhance the stability of the fuel cell in a portable micro power system. A structure of MCU controlled DC-DC converter is proposed. Then, the output characteristics of a selected fuel cell stack and the DC-DC converter’s power control functions are estimated by a system level model. Based on the simulation results the model provides, a power regulation system is implemented and test shows it fulfills its intended function and regulated the output power to a fixed level of 5W to 40W with good efficiency.