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

Catalão, João Paulo da Silva; Mariano, S. J. P. S.; Mendes, Victor; Ferreira, L. A. F. M.

http://hdl.handle.net/10400.21/1275

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Authors

Catalão, João Paulo da Silva

Mariano, S. J. P. S.

Mendes, Victor

Ferreira, L. A. F. M.

Abstract(s)

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.

Keywords

Short-term Hydro Scheduling Nonlinear Optimization Cascaded Reservoirs Head-dependency Hydrothermal Power-Systems Electricity Market Neural-Network Thermal Units Algorithm Constraints Chain Price Flow

URI

http://hdl.handle.net/10400.21/1275

Citation

Catalão J P S, Mariano S J P S, Mendes V M F, Ferreira L A F M. Nonlinear optimization method for short-term hydro scheduling considering head-dependency.European Transactions on Electrical Power. 2010; 20 (2): 172-183.