A voltage-based observer design for membrane water content in PEM fuel cells
This paper presents a scheme for estimating membrane water content in polymer electrolyte membrane (PEM) fuel cells from voltage, current, temperature, and several pressure measurements. The approach is to exploit the resistive voltage drop which is closely associated with membrane water content. To...
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| creator | Gorgun, H. Barbir, F. Arcak, M. |
| description | This paper presents a scheme for estimating membrane water content in polymer electrolyte membrane (PEM) fuel cells from voltage, current, temperature, and several pressure measurements. The approach is to exploit the resistive voltage drop which is closely associated with membrane water content. To distinguish this resistive drop from other voltage losses we make use of a well-developed fuel cell voltage model that characterizes each loss term, as well as the open circuit voltage. The unmeasured hydrogen and oxygen partial pressure values in the open-circuit model are estimated with a variant of the hydrogen and oxygen observers developed by M. Arcak et al. (2004). Preliminary experimental results, obtained at the Connecticut Global Fuel Cell Center, are presented and discussed. |
| doi_str_mv | 10.1109/ACC.2005.1470754 |
| format | Conference Proceeding |
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| ispartof | 2005 American Control Conference, 2005, p.4796-4801 vol. 7 |
| issn | 0743-1619 2378-5861 |
| language | eng |
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| source | IEEE Electronic Library (IEL) Conference Proceedings |
| subjects | Biomembranes Electrical resistance measurement Fuel cells Humidity measurement Hydrogen Polymers Systems engineering and theory Temperature Voltage Water storage |
| title | A voltage-based observer design for membrane water content in PEM fuel cells |
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