Hydrothermal scheduling with storage guide-curves / Planejamento da operação energetica via curvas-guias de armazenamento

AUTOR(ES)
DATA DE PUBLICAÇÃO

2006

RESUMO

The Brazilian electric sector has been passing through successive reforms in the search for an institutional model that allows the optimization of the use of the energetic resources, concealed with the goal of achieving a sustaining development. The energetic planning plays a fundamental roll in this context, thus studies and researches designated to support planning in the energetic sector and elaboration of long term energetic policies have been gaining space among the Brazilian electric sector priorities. The proposal of this work is to present an operating policy based on the concept of storage guide-curves for the mid term hydrothermal scheduling. This policy determines that, at each stage of the planning period, the decisions of water discharged from each hydro plant must be such that keep their reservoirs at levels pre-determined by storage guide-curves. The performance analysis of this operating policy was done through operation simulation, considering different hydro plants of the Brazilian system. The simulation results were also compared to more robust operative policies, including the use of stochastic dynamic programming, a consolidated solution technique for the problem witch is actually in use by the Brazilian electric sector. The results demonstrate that, despite of simple and transparent, this operating policy presents a competitive performance for the hydrothermal scheduling

ASSUNTO(S)

computer simulation programação dinamica simulação (computadores) power systems dynamic programming usinas hidreletricas hydrothermal scheduling sistemas de energia eletrica operating policies guide-curves

ACESSO AO ARTIGO

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