DC-DC power Converter Topology for PEM Fuel Cell Large Stack Operating in Potential Cycling Mode for Embedded Applications
DE BERNARDINIS ; CANDUSSO ; DIAW ; HAREL
Type de document
COMMUNICATION AVEC ACTES INTERNATIONAL (ACTI)
Langue
anglais
Auteur
DE BERNARDINIS ; CANDUSSO ; DIAW ; HAREL
Résumé / Abstract
The aim of the research work is to propose a power converter topology for a Proton Exchange Membrane Fuel Cell (PEMFC) operating in potentiostatic mode and which allows applying the Cyclic Voltammetry (CV) technique to a large stack composed of about one hundred cells. In CV mode, the fuel cell behavior is rather particular and the definition of a suitable power converter interface is not trivial. It implies to control the fuel cell potential during the cycling profiles applied, which is not a usual control method for large fuel cell stacks,and the converter should be current reversible to ensure the entire evolution of the potential cycle. DC-DC bidirectional-buck topology can be a candidate, as well as bidirectional-boost converter for a hybrid fuel cell – battery series connection in order to deal with low voltage limit conditions. DC-DC converter topologies will be simulated and their properties discussed in relation with selected working conditions, having as input real data issued from experimental cyclic voltammograms.
