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=11

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=<p>This article 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. The structure of an 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 which is implemented, and the test shows that it fulfills its intended function and the output power is regulated to a fixed level of 5 W–40 W with good efficiency.</p>