Inverter ripple as a diagnostic tool for ohmic resistance measurements on PEM fuel cells

Author

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

Author_Institution

Dept. of Chem., Mater., & Chem. Eng. “G. Natta”, Politec. di Milano, Vinci, Italy

fYear

2013

fDate

25-27 Sept. 2013

Firstpage

156

Lastpage

161

Abstract

This paper reapproaches the possibility to use the current ripple introduced by power conditioning devices on fuel cells for a low-cost monitoring of the cell ohmic resistance, suitable for commercial applications. Being the ohmic resistance strongly dependent on the membrane water content, this technique can be usefully employed as a diagnostic tool for membrane humidity control. The proposed method is tested on a single PEM fuel cell with a simulated inverter ripple. The fuel cell response is analyzed in the frequency domain to improve the ohmic resistance estimate by fitting impedance values at different frequencies.

Keywords

electric resistance measurement; invertors; proton exchange membrane fuel cells; PEM fuel cells; cell ohmic resistance; current ripple; diagnostic tool; inverter ripple; membrane humidity control; membrane water content; ohmic resistance measurements; power conditioning devices; Electrical resistance measurement; Frequency measurement; Fuel cells; Impedance; Impedance measurement; Inverters; Resistance;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Measurements for Power Systems (AMPS), 2013 IEEE International Workshop on

Conference_Location

Aachen

Print_ISBN

978-1-4673-5571-1

Type

conf

DOI

10.1109/AMPS.2013.6656243

Filename

6656243