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Nonlinear optimization method for short‐term hydro scheduling considering head‐dependency

2008; Wiley; Volume: 20; Issue: 2 Linguagem: Inglês

10.1002/etep.301

1546-3109

João P. S. Catalào, S.J.P.S. Mariano, V.M.F. Mendes, Luís Ferreira,

Water resources management and optimization

Abstract This paper is on the problem of short‐term hydro scheduling, particularly concerning head‐dependent reservoirs under competitive environment. We propose a new nonlinear optimization method to consider hydroelectric power generation as a function of water discharge and also of the head. Head‐dependency is considered on short‐term hydro scheduling 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 main Portuguese cascaded hydro systems, providing a higher profit at a negligible additional computation time in comparison with a linear optimization method that ignores head‐dependency. Copyright © 2008 John Wiley & Sons, Ltd.