Head-Dependent Maximum Power Generation in Short-Term Hydro Scheduling using Nonlinear Programming

S.J.P.S. Mariano, J.P.S. Catalo, V.M.F. Mendes, and L.A.F.M. Ferreira (Portugal)


Short-term hydro scheduling, nonlinear programming, power generation, and head dependence


This paper is on the problem of short-term hydro scheduling. We propose a method, based on nonlinear programming, which considers hydroelectric power generation as a nonlinear function of water discharge and of the head. The main contribution of this paper is that the maximum power generation is also considered as head-dependent in order to obtain more realistic and feasible results. The proposed method has been applied successfully to solve a case study based on one of the Portuguese cascaded hydro systems, providing a higher profit at an acceptable computation time in comparison with classical optimization methods based on linear programming that ignore head dependence.

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