Estimation of localized current anomalies in polymer electrolyte fuel cells from magnetic flux density measurements | Zendy

Takaaki Nara | Zendy; M. Koike | Zendy; Shigeru Ando | Zendy; Yuji Gotoh | Zendy; Masaaki IZUMI | Zendy

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Estimation of localized current anomalies in polymer electrolyte fuel cells from magnetic flux density measurements

Author(s) -

Takaaki Nara,

M. Koike,

Shigeru Ando,

Yuji Gotoh,

Masaaki IZUMI

Publication year - 2016

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4943607

Subject(s) - tikhonov regularization , pointwise , electrolyte , current density , regularization (linguistics) , electrode , current (fluid) , polymer , materials science , inverse problem , physics , chemistry , nuclear magnetic resonance , thermodynamics , mathematical analysis , computer science , mathematics , quantum mechanics , artificial intelligence

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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