Probabilistic electric load forecasting model for the uruguayan interconnected electrical system
Eliana Cornalino, Ruben Chaer
International Conference on Renewable Energies and Power Quality (ICREPQ 18), Salamanca, Spain, 21-23 mar, page 181--186 - 2018
Research Group(s): (unspecified)
Department(s): Potencia
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Abstract

The aim of this research is to improve the capacity to represent and forecast the electric demand for next week’s scheduling. Currently the demand forecast used for this purpose is deterministic, which is not representative of reality, even if an ideal temperature forecast was available. The current context of the Uruguayan electrical system has high probability of exportable surplus energy. For this reason, improvements to the procedure used to calculate systems supply costs and the quantity of exportable energy are welcome, in order to maximize the benefit we can get from resources. The methodology applied is based on previous developments for simulation of stochastic variables within the SimSEE platform [2]. It combines daily step CEGH model [3] with a k-means clustering method [4]. Obtained results were satisfactory both from the point of view of the representation of the temporal behavior of the power demand, and from the point of view of the error obtained in the predictions. What is more, this improvements helps to reduce risks involved when making energy commitments with neighbouring countries.

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