In this paper a simple model for evaluating current ripple effects on commercial PEM fuel cells is presented. The model is formulated starting from the Randles equivalent circuit and extending it assuming a dielectric relaxation of the material to represent dynamic processes in the frequency range typical of inverter current ripple. The proposed equivalent circuit is experimentally validated on a 14 kW commercial Morphic PEM fuel cell at the frequencies of interest. Finally the effects of current ripple on the losses and fuel cell efficiency are discussed.
|Autori interni:||MARRACCI, MIRKO|
|Autori:||Ferrero R; Marracci M; Prioli M; Tellini B|
|Titolo:||Simplified model for evaluating ripple effects on commercial PEM Fuel Cell|
|Anno del prodotto:||2012|
|Digital Object Identifier (DOI):||10.1016/j.ijhydene.2012.06.036|
|Appare nelle tipologie:||1.1 Articolo in rivista|