A review of the decomposition methodology for extracting and identifying the fluctuation characteristics in electricity demand forecasting
Shan-Lin Yang and
Renewable and Sustainable Energy Reviews, 2017, vol. 75, issue C, 123-136
Electricity consumption data is regarded as nonlinear, non-stationary series, and is often made up by a superposition of several distinct frequencies. Thus most of the conventional approaches currently employed for the modeling and forecasting involve great complexity and uncertainty. Recently, fluctuation characteristic analysis has increasingly become essential step in the application of electricity demand forecasting, yet the implementation of this analysis is an inherently difficult task. To obtain reasonable accuracy and stability in the modeling, there has been the tendency to accommodate multidimensional attributes of the consumption demands with decomposition based approach in terms of more advanced and hybrid form. And the decomposition can be achieved through utilization of two different procedures, namely component model-based and frequency domain analysis-based decomposition. Consequently, a comprehensive review and summarization of decomposition based approach for the prediction is conducted in this paper. More specifically, the issues of demand forecasting classification, the dependency between the electricity demand and external indicators, features of various decomposition approach, as well as the unique fluctuation characteristic of electricity demand at different time scales are discussed. In addition, future research directions of the decomposition based prediction approach are outlined.
Keywords: Decomposition; Frequency domain analysis; Component model; Short term forecast; Mid-long term forecast; Electricity demand (search for similar items in EconPapers)
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