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Kim, Joo Gon,Mukherjee, Santanu,Bates, Alex,Zickel, Benjamin,Park, Sam,Son, Byung Rak,Choi, Jae Sung,Kwon, Osung,Lee, Dong Ha,Chung, Hyun-Youl Elsevier 2015 Journal of Power Sources Vol.300 No.-
<P><B>Abstract</B></P> <P>Proton exchange membrane fuel cells are a promising energy conversion device which can help to solve urgent environmental and economic problems. Among the various types of fuel cells, the air breathing proton exchange membrane fuel cell, which minimizes the balance of plant, has drawn a lot of attention due to its superior energy density. In this study a compact, air breathing, proton exchange membrane fuel cell based on Nafion and a Pt/C membrane electrode assembly was designed. The fuel cell was tested using a Scribner Associates 850e fuel cell test station. Specifically, the hydrogen fuel and oxygen starvation of the fuel cell were accurately and systematically tested and analyzed using a frequency analysis method which can analyze the input and output frequency. The analysis of the frequency variation under a fuel starvation condition was done using RMSF (root mean square frequency) and ACSD (autocorrelation standard deviation). The study reveals two significant results: first, the fuel starvations show entirely different phenomenon in both RMSF and ACSD and second, the results of the Autocorrelation show clearer results for fuel starvation detection than the results with RMSF.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Real-time health monitoring of a PEM fuel cell for H<SUB>2</SUB> and O<SUB>2</SUB> starvation. </LI> <LI> Fault diagnosis using autocorrelation standard deviation analysis. </LI> <LI> Fault diagnosis using root mean square frequency analysis. </LI> </UL> </P>