Reference
A. Sadowska,
P. J. van Overloop, C. Burt,
and B. De Schutter, "Hierarchical MPC-based control of an irrigation canal," in
Transport of Water versus Transport over Water - Exploring the
Dynamic Interplay Between Transport and Water (C. Ocampo-Martinez and
R. R. Negenborn, eds.), Cham, Switzerland:
Springer, ISBN 978-3-319-16132-7, pp. 169-187, 2015.
Abstract
We discuss the problem of controlling an irrigation canal to accommodate fast
changes in the canal state in response to events such as offtakes announced
with no time lag or sudden weather changes. Our proposed approach comprises a
hierarchical controller consisting of two layers with decentralized PI
controllers in the lower layer and a centralized MPC-based event-driven
controller in the higher layer. By incorporating the hierarchical controller
structure we achieve a better performance than with the PI controllers only as
currently in use in the real world, while barely increasing the communication
requirements and remaining robust to temporary communication link breakdowns as
the lower layer can work independently of the higher layer when the links are
being restored. The operation of the higher-layer controller relies on
controlling the head gate and modifying the settings of the local controllers.
This way, an acceleration of water transporting is attained as the controller
allows for rapid reactions to the need for more water or less water at a
location. Specifically, when there is a sudden need for water, the storage in
some of the pools is used to temporarily borrow water. Alternatively, when
there is too much water at a location, it can be stored for some time in
upstream or downstream pools before the PI controllers manage to remove the
water. We show how the proposed control approach works in a simulation-based
case study and compare it with the standard control method currently in use.
This demonstrates that employing the new hierarchical controller ensures a
better performance.
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BibTeX
@incollection{Sadvan:14-041,
author = {Sadowska, Anna and van Overloop, Peter Jules and Burt, Charles
and De Schutter, Bart},
title = {Hierarchical {MPC}-Based Control of an Irrigation Canal},
booktitle = {Transport of Water versus Transport over Water -- Exploring the
Dynamic Interplay Between Transport and Water},
editor = {Ocampo-Martinez, Carlos and Negenborn, Rudy R.},
publisher = {Springer},
address = {Cham, Switzerland},
pages = {169--187},
year = {2015}
}