Journal
JOURNAL OF POWER SOURCES
Volume 196, Issue 9, Pages 4277-4282Publisher
ELSEVIER
DOI: 10.1016/j.jpowsour.2010.11.059
Keywords
LGQ/LQR control; PEM fuel cells; Oxygen stoichiometry; Experimental results
Funding
- CICYT [DIP2007-62966]
- Agencia Espanola de Cooperacion Internacional (AECI) [A/026279/09]
- Juan de la Cierva [JCI-2008-2438]
- CSIC [NRP 734635NX0SC000087]
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This paper presents the oxygen stoichiometry control problem of proton exchange membrane (PEM) fuel cells and introduces a solution through an optimal control methodology. Based on the study of a non-linear dynamical model of a laboratory PEM fuel cell system and its associated components (air compressor, humidifiers, line heaters, valves, etc.), a control strategy for the oxygen stoichiometry regulation in the cathode line is designed and tested. From a linearised model of the system, an LQR/LQG controller is designed to give a solution to the stated control problem. Experimental results show the effectiveness of the proposed controllers design. (C) 2010 Elsevier B.V. All rights reserved.
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