A Reduced Fuel Cell Stack Model for Control and Fault Diagnosis

[+] Author and Article Information
Damiano Di Penta

 RENAULT, 1 avenue du Golf (FR TCR RUC T65) 78288 Guyancourt Francedamiano.di-penta@renault.com

Karim Bencherif

 RENAULT, 1 avenue du Golf (FR TCR RUC T65) 78288 Guyancourt Francekarim.ben-cherif@renault.com

Michel Sorine

 INRIA-Rocquencourt, SOSSO2, domaine de Voluceau-Rocquencourt-B.P. 105 78153 Le Chesnay Cedexmichel.Sorine@inria.fr

Qinghua Zhang

 IRISA, SOSSO2, campus universitaire de Beaulieu, 35042 Rennes Cedexzhang@irisa.fr

The tests were performed with 3M MEA at 3M Center, St Paul, MN, USA.

J. Fuel Cell Sci. Technol 3(4), 384-388 (Mar 03, 2006) (5 pages) doi:10.1115/1.2349517 History: Received November 08, 2005; Revised March 03, 2006

This paper proposes a reduced fuel cell stack model for control and fault diagnosis which was validated with experimental data. Firstly, the electro-chemical phenomena are modeled based on a mechanism of gas adsorption/desorption on catalysts at the anode and at the cathode of the stack, including activation, diffusion, and carbon monoxide poisoning. The electrical voltage of a stack cell is then modeled by the difference between the two electrode potentials. A simplified thermal model of the fuel cell stack is also developed in order to take into account heat generation from reactions, heat transfers, and evaporation/condensation of water. Finally, the efficiency ratio is computed as a model output. It is used to evaluate the efficiency changes of the entire system, providing an important indicator for fault detection.

Copyright © 2006 by American Society of Mechanical Engineers
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Figure 1

Fuel cell system

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Figure 2

Polarization curve

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Figure 5

Comparison of 3M cell voltage static experiments with simulations at 70°C∕50ppmCO(a), 80°C∕100ppmCO(b) and 90°C∕200ppmCO(c), for different air bleed ratios

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Figure 6

Comparison of 3M cell voltage transient experiments (–) with simulations (- -) for a variation of CO(a) and for a variation of air bleed (b)

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Figure 7

Comparison of 3M small stack temperature transient experiments (–) with simulations (- -)



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