This paper focuses on the control of a low temperature ethanol steam reformer for in-situ hydrogen production. For this purpose, three optimization-based control configurations are proposed, namely, a linear model-based predictive controller, a linear quadratic regulator with output error integral action and a cascade control combining the two previous configurations. In all cases, control objectives aim at obtaining the desired flow of hydrogen while keeping the carbon monoxide at its nominal working point under input and output operational constraints. Output tracking and robustness of each configuration are compared using two key performance indicators that evaluate the output errors and the smoothness of the control signals. Simulation results allow to compare the characteristics of each control configuration when applied to the non-linear model of the ethanol steam reformer. © 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights. ; This work has been partially supported by Spanish research projects DPI2010-15274 and DPI2011-25649 of the Science and Innovation Ministry. ; Peer Reviewed
Design of optimization-based controllers applied to an ethanol steam reformer for hydrogen production
2012-01-01
Article (Journal)
Electronic Resource
English
DDC: | 629 |
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