Author, as appears in the article.: Restrepo C; Konjedic T; Guarnizo C; Avino-Salvado O; Calvente J; Romero A; Giral R
Department: Enginyeria Electrònica, Elèctrica i Automàtica
URV's Author/s: Calvente Calvo, Francisco Javier / Giral Castillon, Roberto / Romero Nevado, Alfonso José
Keywords: Simplified mathematical model Sampling methods Real-time system Real-time monitoring systems Real-time calculations Real time systems Proton exchange membrane fuel cells (pemfc) Pemfc Oxygen starvation Oxygen Mutual informations Mutual information (mi) Mathematical models Mathematical complexity High sampling frequencies Fuel cells Fuel cell Cost-effective solutions Computerised monitoring Computer simulation
Abstract: The oxygen starvation phenomenon is a dangerous operating condition that reduces the lifetime of PEM fuel cells. The detection and prevention of this undesired phenomenon require estimation of the oxygen excess ratio $\lambda-{{\rm O}-{2}}$. The mathematical complexities of the reported methods for obtaining $\lambda-{{\rm O}-{2}}$ complicate its real-time calculation and require high-performance computational devices, which significantly increase the costs of the system. In this paper, a mutual information approach is used in obtaining a simplified mathematical model for the calculation of $\lambda-{{\rm O}-{2}}$. The usage of such a simplified model requires much less computational power for real-time monitoring of the variable $\lambda-{{\rm O}-{2}}$, while it provides comparable results to those obtained by using the complex model. Therefore, it represents a cost-effective solution, suitable for usage within applications that require high sampling frequencies, like emulators, converter and air compressor control loops, simulations, etc. In order to validate the accuracy of this simplified $ \lambda-{{\rm O}-{2}}$ calculation model, a real-time monitoring system was built and experimentally tested using both the simplified and complex models. The matching experimental results validate the proposed simplification and justify the use of this simplified model within real-time monitoring applications. © 1982-2012 IEEE.
Thematic Areas: Interdisciplinar Instruments & instrumentation Engineering, electrical & electronic Engenharias iv Engenharias iii Electrical and electronic engineering Control and systems engineering Computer science applications Ciência da computação Automation & control systems
licence for use: https://creativecommons.org/licenses/by/3.0/es/
Author's mail: alfonsojose.romero@urv.cat javier.calvente@urv.cat roberto.giral@urv.cat
Author identifier: 0000-0003-3502-0813 0000-0001-8012-1889 0000-0001-6582-6741
Record's date: 2024-01-14
Papper version: info:eu-repo/semantics/acceptedVersion
Link to the original source: https://ieeexplore.ieee.org/document/6574292
Licence document URL: http://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Ieee Transactions On Industrial Electronics. 61 (6): 2816-2825
APA: Restrepo C; Konjedic T; Guarnizo C; Avino-Salvado O; Calvente J; Romero A; Giral R (2014). Simplified mathematical model for calculating the oxygen excess ratio of a PEM fuel cell system in real-time applications. Ieee Transactions On Industrial Electronics, 61(6), 2816-2825. DOI: 10.1109/TIE.2013.2276331
Article's DOI: 10.1109/TIE.2013.2276331
Entity: Universitat Rovira i Virgili
Journal publication year: 2014
Publication Type: Journal Publications
Repositori URV