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

• Autor(a) principal: Catalão, João Paulo da Silva
• Data de Publicação: 2010
• Outros Autores: Mariano, S. J. P. S., Mendes, Victor, Ferreira, L. A. F. M.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
• Texto Completo: http://hdl.handle.net/10400.21/1275
• topic: Short-term Hydro Scheduling; Nonlinear Optimization; Cascaded Reservoirs; Head-dependency; Hydrothermal Power-Systems; Electricity Market; Neural-Network; Thermal Units; Algorithm; Constraints; Chain; Price; Flow

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.