Important Issues and Results When Considering the Stochastic Representation of Wind Power Plants in a Generation Optimization Model: An Application to the Large Brazilian Interconnected Power System - Energy and Power Engineering

EPE > Vol.11 No.8, August 2019

Important Issues and Results When Considering the Stochastic Representation of Wind Power Plants in a Generation Optimization Model: An Application to the Large Brazilian Interconnected Power System ()

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DOI: 10.4236/epe.2019.118020 678 Downloads 1,514 Views Citations

Author(s)

Juliana F. Chade Mummey^1*, Ildo L. Sauer¹, Dorel S. Ramos², William W.-G. Yeh³

Affiliation(s)

¹Institute of Energy and Environment, University of São Paulo, São Paulo, Brazil.
²Escola Politécnica, University of São Paulo, São Paulo, Brazil.
³Department of Civil and Environmental Engineering, University of California, Los Angeles, USA.

ABSTRACT

Wind power has an increasing share of the Brazilian energy market and may represent 11.6% of total capacity by 2024. For large hydro-thermal systems having high-storage capacity, a complementarity between hydro and wind production could have important effects. The current optimization models are applied to dispatch power plants to meet the market demand and optimize the generation dispatches considering only hydroelectric and thermal power plants. The remaining sources, including wind power, small-hydroelectric plants and biomass plants, are excluded from the optimization model and are included deterministically. This work introduces a general methodology to represent the stochastic behavior of wind production aimed at the planning and operation of large interconnected power systems. In fact, considering the generation of the wind power source stochastically could show the complementarity between the hydro and wind power production, reducing the energy price in the spot market with the reduction of thermal power dispatches. In addition to that, with a reduction in wind power and a simultaneous dry-season occurrence, this model, is able to show the need of thermal power plants dispatches as well as the reduction of the risk of energy shortages.

KEYWORDS

Stochastic Optimization, Hydrothermal Systems Planning, Wind Power, Complementarity, Synthetic Series Generation

Share and Cite:

Mummey, J. , Sauer, I. , Ramos, D. and Yeh, W. (2019) Important Issues and Results When Considering the Stochastic Representation of Wind Power Plants in a Generation Optimization Model: An Application to the Large Brazilian Interconnected Power System. Energy and Power Engineering, 11, 320-332. doi: 10.4236/epe.2019.118020.

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