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.

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

DOTELLI, GIOVANNI;FERRERO, ROBERTO;GALLO STAMPINO, PAOLA;LATORRATA, SAVERIO
2013

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.
2013 IEEE International Workshop on Applied Measurements for Power Systems (AMPS)
9781467355711
PEMFC; EIS; diagnosis
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11311/824547
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