Modelo de Pré-Despacho Hidrotérmico Combinado Pool/Bilateral para Mercados de Energia do Dia Seguinte
(Combined Pool/Bilateral Short-Term Hydrothermal Scheduling Model for Day-Ahead Energy Markets)
Alessandro Lopes da Silva (firstname.lastname@example.org), Paulo Sérgio da Silva (email@example.com), Júlio Cesar Breda (firstname.lastname@example.org), Leonardo Nepomuceno (email@example.com)
Unesp ‑ Univ Estadual Paulista
This paper appears in: Revista IEEE América Latina
Publication Date: Sept. 2012
Volume: 10, Issue: 5
This paper proposes a combined pool/bilateral short term hydrothermal scheduling model (PDC) for the context of the day-ahead energy markets. Some innovative aspects are introduced in the model, such as: i) the hydraulic generation is optimized through the opportunity cost function proposed; ii) there is no decoupling between physical and commercial dispatches, as is the case today in Brazil; iii) interrelationships between pool and bilateral markets are represented through a single optimization problem; iv) risk exposures related to future deficits are intrinsically mitigated; v) the model calculates spot prices in an hourly basis and the results show a coherent correlation between hydrological conditions and calculated prices. The proposed PDC model is solved by a primal-dual interior point method and is evaluated by simulations involving a test system. The results are focused on sensitivity analyses involving the parameters of the model, in such a way to emphasize its main modeling aspects. The results show that the proposed PDC provides a conceptual means for short term price formation for hydrothermal systems.
Short-term Generation Scheduling, Energy Markets
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