Publication
Dither-less extremum seeking for hydrogen minimization in PEM fuel cells
Journal Article (2015)
Journal
IEEE Transactions on Industrial Electronics
Pages
5218-5226
Volume
62
Number
8
Doc link
http://dx.doi.org/10.1109/TIE.2015.2426143
File
Authors
-
Castaños Luna, Fernando
-
Kunusch, Cristian
Projects associated
ACOFC: Advanced Controllers and Observers Development for Fuel Cell based Generation Systems
MESPEM: Desarrollo de sistemas de control para la mejora de la eficiencia y la vida útil en sistemas basados en pilas de combustible PEM
MACPERCON: Enhanced management topologies based on unfalsified control for PEM fuel cells performance improvement
PUMA MIND: Physical bottom Up multiscale Modelling for Automotive PEMFC Innovative performance and Durability optimization
Abstract
This work presents a nonsmooth adaptive extremum seeker that minimizes the hydrogen consumption in a fuel cell system. The extremum seeker operates by estimating the gradient of the objective function but, unlike other seekers, it does not require a dither signal to produce such estimate. The absence of a dither signal simplifies the choice of parameter values for the seeker and, more importantly, it allows it to converge to the optimal value exactly, not only to a small neighborhood. The proper functioning of the proposed scheme is proved using nonsmooth Lyapunov analysis. The strategy is tested on the input–output map of a real PEM fuel cell.
Categories
control theory.
Author keywords
extremum seeking, fuel cells, nonsmooth Lyapunov analysis
Scientific reference
F. Castaños and C. Kunusch. Dither-less extremum seeking for hydrogen minimization in PEM fuel cells. IEEE Transactions on Industrial Electronics, 62(8): 5218-5226, 2015.
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