In-situ on-board evaluation and control of proton exchange membrane fuel cells using magnetic sensors

Yutaro Akimoto, Masumi Shibata, Yuto Tsuzuki, Keiichi Okajima and Shin-nosuke Suzuki

Applied Energy, 2023, vol. 351, issue C, No S0306261923012370

Abstract: Efficient and stable operation of fuel cells is based on understanding their current distribution. In this study, we propose a method for calculating the current intensity—which is fundamentally a straightforward current distribution—in real-time using magnetic fields at four distinct points. Our findings suggest that current distribution remains non-uniform during purge control, despite voltage recovery, and cooling after a dry-out proves to be time-consuming. We show that using the current intensity distribution as a control strategy enables uniform distribution and ensures the stable operation of fuel cells. Overall, our method effectively addresses the non-uniformity in current distribution, leading to enhanced performance of fuel cells.

Keywords: Control method; Current distribution; Fuel cells; In-situ evaluation; Magnetic sensors; PEMFC (search for similar items in EconPapers)
Date: 2023
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DOI: 10.1016/j.apenergy.2023.121873

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