Durdu, Ömer Faruk
December 2008
Journal of Adnan Menderes University, Agricultural Faculty;Dec2008, Vol. 5 Issue 2, p9
Academic Journal
In this study, a model predictive controller is developed for regulation of flow in openchannels. The equations of open-channel flow were linearized using a finite-difference approximation of the original nonlinear partial differential equations. This linear model was used to design a model predictive control for minimizing deviations in flow depth and changing in gate openings. To accomplish this, future control actions in the system was taken into account. As an objective function, a linear quadartic function was used. An example problem with 7 gates and 6 pools was simulated for evaluation purposes. To verify the results, also linear quadratic regulator and linar quadratic Gaussian controller was designed and simulated with the same example canal. The results from linear quadratic models were compared to the results from model predictive control. There was no significant differences between the results of the models. Model predictive control can be an alterntive to the other kontrol techniques because it is easy to apply to open-channels, it does not need an estimator, and it can handle delay-times in open-channels.


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