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Revista Iberoamericana de Automática e Informática Industrial RIAI
Article . 2020 . Peer-reviewed
License: CC BY NC ND
Data sources: Crossref
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Recolector de Ciencia Abierta, RECOLECTA
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DIGITAL.CSIC
Article . 2021
Data sources: DIGITAL.CSIC
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Observador de alta ganancia con zona muerta ajustable para estimar la saturación de agua líquida en pilas de combustible tipo PEM

High gain observer with dynamic deadzone to estimate liquid water saturation in PEM fuel cells
Authors: Cecilia Piñol, Andreu; Costa Castelló, Ramon;

Observador de alta ganancia con zona muerta ajustable para estimar la saturación de agua líquida en pilas de combustible tipo PEM

Abstract

En el campo de las pilas de combustible PEM, la gestión de agua líquida es una de las problemáticas más importantes que afectan a la eficiencia y vida útil del sistema. Las técnicas de control activo y supervisión del agua se ven limitadas por la ausencia de sensores que puedan medir la saturación de agua líquida en línea. Por eso, en este trabajo se presenta el diseño de un observador de estado para la estimación de la saturación de agua líquida en la capa catalizadora del cátodo de una pila de combustible PEM de cátodo abierto. El observador propuesto se basa en técnicas de alta ganancia. Además, se modifica con una función de zona muerta autoajustable con el fin de reducir su sensibilidad al ruido en la medida. Los resultados se han validado mediante simulación numérica y experimentación. Estos muestran que, en ausencia de ruido, el observador propuesto presenta unas prestaciones similares a las de su equivalente sin zona muerta. Además, en presencia de ruido, la zona muerta disminuye significativamente el error de estimación inducido por este.

Country
Spain
Keywords

:Informàtica::Automàtica i control [Àrees temàtiques de la UPC], State observers, sistemas no lineales, Measurement Noise, State Observers, Àrees temàtiques de la UPC::Informàtica::Automàtica i control, Nonlinear systems, Observadores de estados, sistemas de energía renovables, Control engineering systems. Automatic machinery (General), Ruido de medida, Sistemas no Lineales, Measurement noise, Ruido de Medida, Classificació INSPEC::Control theory, Renewable energy systems, Sistemas no lineales, :Control theory [Classificació INSPEC], ruido de medida, TJ212-225, observadores de estados, Sistemas de energía renovables, Observadores de Estados

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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