Publication
Performance of diagonal control structures at different operating conditions for polymer electrolyte membrane fuel cells
Journal Article (2006)
Journal
Journal of Power Sources
Pages
1317-1323
Volume
158
Number
2
Doc link
http://dx.doi.org/10.1016/j.jpowsour.2005.10.092
File
Authors
Projects associated
Abstract
This work is focused on the selection of operating conditions in polymer electrolyte membrane fuel cells. It analyses efficiency and controllability aspects, which change from one operating point to another. Specifically, several operating points that deliver the same amount of net power are compared, and the comparison is done at different net power levels. The study is based on a complex non-linear model, which has been linearised at the selected operating points. Different linear analysis tools are applied to the linear models and results show important controllability differences between operating points. The performance of diagonal control structures with PI controllers at different operating points is also studied. A method for the tuning of the controllers is proposed and applied. The behaviour of the controlled system is simulated with the non-linear model. Conclusions indicate a possible trade-off between controllability and optimisation of hydrogen consumption.
Categories
control theory, power system control.
Author keywords
PEMFC, diagonal control, PI controllers, operating conditions, linear analysis, efficiency
Scientific reference
M. Serra, A.P. Husar, D. Feroldi and J. Riera. Performance of diagonal control structures at different operating conditions for polymer electrolyte membrane fuel cells. Journal of Power Sources, 158(2): 1317-1323, 2006.
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