Testing of a diagnostic technique for a single PEM fuel cell based on a DC/DC converter

Author

Dotelli, G. ; Ferrero, Renato ; Stampino, P. Gallo ; Latorrata, S. ; Toscani, Sergio

Author_Institution

Dept. of Chem., Mater., & Chem. Eng. G. Natta, Politec. di Milano, Milan, Italy

fYear

2014

fDate

24-26 Sept. 2014

Firstpage

1

Lastpage

5

Abstract

This paper aims at testing the applicability of a previously proposed diagnostic method for PEM fuel cells, which exploits the ripple produced by switch-mode converters to monitor the fuel cell state of health. A low-voltage DC/DC boost converter has been designed for this purpose, suitable to be directly connected to a single cell. This paper shows how the cell response to the converter current ripple can be used to accurately estimate the cell ohmic resistance (which is a good indicator of the membrane humidity) with suitable elaboration algorithms. Experimental results confirm the applicability of this approach.

Keywords

DC-DC power convertors; proton exchange membrane fuel cells; switching convertors; testing; cell ohmic resistance estimation; converter current ripple; diagnostic technique; elaboration algorithms; fuel cell state-of-health monitoring; low-voltage DC-DC boost converter; membrane humidity; polymer electrolyte membrane fuel cells; single PEM fuel cell; switch-mode converters; Frequency measurement; Fuel cells; Impedance; Impedance measurement; Inductance; Resistance; Switching frequency;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Measurements for Power Systems Proceedings (AMPS), 2014 IEEE International Workshop on

Conference_Location

Aachen

Type

conf

DOI

10.1109/AMPS.2014.6947722

Filename

6947722