Reference
Y. Li and B. De Schutter, "Stability and performance analysis of an irrigation
channel with distributed control,"
Control Engineering
Practice, vol. 19, no. 10, pp. 1147-1156, Oct. 2011.
Abstract
For a string of pools with distant-downstream control, the internal time-delay
for water transport from upstream to downstream does not only limit the local
control performance of regulating water-levels at setpoints and rejecting
offtake disturbances in each pool, but also impacts the global performance of
managing the water-level error propagation and attenuating the amplification of
control actions in the upstream direction. A distributed control scheme that
inherits the interconnection structure of the plant is investigated. It is
shown that the decoupling terms in the controller help to improve global
closed-loop performance by decreasing the low-frequency gain of the closed-loop
coupling. Moreover, the decoupling terms compensate for the influence of the
time-delay by imposing extra phase lead-lag compensation in the mid-frequency
range on the closed-loop coupling function.
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BibTeX
@article{LiDeS:11-027,
author = {Li, Yuping and De Schutter, Bart},
title = {Stability and Performance Analysis of an Irrigation Channel with
Distributed Control},
journal = {Control Engineering Practice},
volume = {19},
number = {10},
pages = {1147--1156},
month = oct,
year = {2011}
}