Estimation of localized current anomalies in polymer electrolyte fuel cells from magnetic flux density measurements
Source abstract
Abstract
In this paper, we propose novel inversion methods to estimate defects or localized current anomalies in membrane electrode assemblies (MEAs) in polymer electrolyte fuel cells (PEFCs). One method is an imaging approach with L1-norm regularization that is suitable for estimation of focal anomalies compared to Tikhonov regularization. The second is a complex analysis based method in which multiple pointwise current anomalies can be identified directly and algebraically from the measured magnetic flux density.
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Research context
OpenAlex topics: Electrical and Bioimpedance Tomography · Non-Destructive Testing Techniques · Sparse and Compressive Sensing Techniques
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Affiliations
The University of Tokyo 1 Graduate School of Information Science and Technology, , 7-3-1, Hongo, Bunkyo, Tokyo, 113-8656, Japan
Oita University 2 Department of Mechanical and Energy Systems Engineering, , 700 Dannoharu, Oita, 870-1192, Japan
The University of Kitakyushu 3 Department of Mechanical Systems Engineering, , 1-1, Hibikino, Wakamatsu-ku, Kitakyushu, Fukuoka, 808-0135, Japan
Funding
Japan Science and Technology Agency
References (6)
Show source-provided references
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6. 2012