期刊
JOURNAL OF POWER SOURCES
卷 192, 期 1, 页码 216-223出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2008.12.014
关键词
PEMFC; Fault detection; Fault diagnostic
资金
- Generalitat of Catalunya [2005SGR00537]
- Spanish Ministry of Education (CICYT) [DPI-2005-05415, DP12007-62966]
- Departamento de Universidades
- Investigacion y Sociedad de la Informacion y del Consejo Nacional de Ciencia y Tecnologia (CONACYT)
In this work, a model-based fault diagnosis methodology for PEM fuel cell systems is presented. The methodology is based on computing residuals, indicators that are obtained comparing measured inputs and outputs with analytical relationships, which are obtained by system modelling. The innovation of this methodology is based on the characterization of the relative residual fault sensitivity. To illustrate the results, a non-linear fuel cell simulator proposed in the literature is used, with modifications, to include a set of fault scenarios proposed in this work. Finally, it is presented the diagnosis results corresponding to these fault scenarios. It is remarkable that with this methodology it is possible to diagnose and isolate all the faults in the proposed set in contrast with other well known methodologies which use the binary signature matrix of analytical residuals and faults. (C) 2008 Elsevier B.V. All rights reserved.
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