In this paper, various types of fault detection methods for fuel cells are compared. For example, those that use a model based approach or a data driven approach or a combination of the two. The potential advantages and drawbacks of each method are discussed and comparisons between methods are made. In particular, classification algorithms are investigated, which separate a data set into classes or clusters based on some prior knowledge or measure of similarity. In particular, the application of classification methods to vectors of reconstructed currents by magnetic tomography or to vectors of magnetic field measurements directly is explored. Bases are simulated using the finite integration technique (FIT) and regularization techniques are employed to overcome ill-posedness. Fisher's linear discriminant is used to illustrate these concepts. Numerical experiments show that the ill-posedness of the magnetic tomography problem is a part of the classification problem on magnetic field measurements as well. This is independent of the particular working mode of the cell but influenced by the type of faulty behavior that is studied. The numerical results demonstrate the ill-posedness by the exponential decay behavior of the singular values for three examples of fault classes.
Classification and Fault Detection Methods for Fuel Cell Monitoring and Quality Control
Contributed by the Advanced Energy Systems Division of ASME for publication in the JOURNAL OF FUEL CELL SCIENCE AND TECHNOLOGY. Manuscript received June 28, 2012; final manuscript received December 10, 2012; published online March 21, 2013. Assoc. Editor: Ken Reifsnider.
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Lowery, N. L. H., Vahdati, M. M., Potthast, R. W. E., and Holderbaum, W. (March 21, 2013). "Classification and Fault Detection Methods for Fuel Cell Monitoring and Quality Control." ASME. J. Fuel Cell Sci. Technol. April 2013; 10(2): 021002. https://doi.org/10.1115/1.4023565
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