Short-Term Load Forecasting with Exponentially Weighted Methods

Taylor, James (2012) Short-Term Load Forecasting with Exponentially Weighted Methods. IEEE Transactions on Power Systems, 27 (1). pp. 458-464.


Short-term load forecasts are needed for the efficient management of power systems. Although weather-based modeling is common, univariate models can be useful when the lead time of interest is less than one day. A class of univariate methods that has performed well with intraday data is exponential smoothing. This paper considers five recently developed exponentially weighted methods that have not previously been used for load forecasting. These methods include several exponential smoothing formulations, as well as methods using discount weighted regression, cubic splines, and singular value decomposition (SVD). In addition, this paper presents a new SVD-based exponential smoothing formulation. Using British and French half-hourly load data, these methods are compared for point forecasting up to one day ahead. Although the new SVD-based approach showed some potential, the best performing method was a previously developed exponential smoothing method. A second empirical study showed the better of the univariate methods outperforming a weather-based method up to about five hours ahead, with a combination of these methods producing the best results overall.

Item Type: Article
Keywords: Discount weighted regression; Exponential smoothing; Load forecasting; Singular value decomposition; Spline functions; management science
Subject(s): Management science
Date Deposited: 05 Feb 2012 15:33
Last Modified: 08 Aug 2018 12:12
Funders: N/A

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