First results obtained with an impedancemeter developed for the diagnosis of large PEFC stacks
WASTERLAIN ; HAREL ; CANDUSSO ; HISSEL ; FRANCOIS
Type de document
COMMUNICATION AVEC ACTES INTERNATIONAL (ACTI)
Langue
anglais
Auteur
WASTERLAIN ; HAREL ; CANDUSSO ; HISSEL ; FRANCOIS
Résumé / Abstract
A novel architecture of impedance spectrometer is developed in order to diagnose large PEMFC (Proton Exchange Membrane Fuel Cell) stacks. The new device allows also impedance measurements of individual cells located in the middle of stacks, where common mode potentials are usually too high for commercial impedancemeters. This capability allows highlighting any singular cell behaviors or drift effects due to operational physical parameters (stack temperature, reactant flows~). First characterization and validation of the diagnosis instrument have been done using the results obtained with a commercial spectrometer.
