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Stability of a series of identical controlled channels

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Geophysical Research Abstracts Vol. 17, EGU2015-6861, 2015 EGU General Assembly 2015

© Author(s) 2015. CC Attribution 3.0 License.

Stability of a series of identical controlled channels

Ronald van Nooijen and Alla Kolechkina

Delft University of Technology, Faculty of Civil Engineering and Geosciences, Water Management, Delft, Netherlands (r.r.p.vannooyen@tudelft.nl)

For long open channels it is possible to model the behavior in response to a change in inflow as a delay followed be a reservoir. If we have a series of such models, for instance as a model for the reaches of a primary canal in an irrigation system then it is interesting to examine the possibilities for local control. One possible problem is the interaction between the different reaches and their controllers. For a system of N reaches with identical PID controllers we derive sufficient conditions for stability of the system as a whole.

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