Actas de congresos
Long-term Hydropower Scheduling Based On Deterministic Nonlinear Optimization And Annual Inflow Forecasting Models
Registro en:
9781424422357
2009 Ieee Bucharest Powertech: Innovative Ideas Toward The Electrical Grid Of The Future. , v. , n. , p. - , 2009.
10.1109/PTC.2009.5281782
2-s2.0-74949093858
Autor
Zambelli M.S.
Luna I.
Soares S.
Institución
Resumen
This paper proposes an operational policy for long-term hydropower scheduling based on deterministic nonlinear optimization and annual inflow forecasting models using an open-loop feedback control framework. The optimization model precisely represents hydropower generation by taking into consideration water head as a nonlinear function of storage, discharge and spillage. The inflow is made available by a forecasting model based on a fuzzy inference system that captures the nonlinear correlation of consecutive inflows on an annual basis, then disaggregating it on a monthly basis. In order to focus on the ability of the approach to handle the stochastic nature of the problem, a case study with a single-reservoir system is considered. The performance of the proposed approach is evaluated by simulation over the historical inflow records and compared to that of the stochastic dynamic programming approach. The results show that the proposed approach leads to a better operational performance of the plant, providing lower spillages and higher average hydropower efficiency and generation. © 2009 IEEE.
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