A generalized dynamical model for wind speed forecasting

Victor E.L.A. Duca, Thaís C.O. Fonseca and Fernando L. Cyrino Oliveira

Renewable and Sustainable Energy Reviews, 2021, vol. 136, issue C

Abstract: The Weibull distribution is commonly used to model wind speed data, mainly due to its good fit to asymmetric positive variables. Several proposals have extended this approach to accommodate realistic features of wind data such as nonstationary behavior due to changes in atmospheric regimes. The present work considers wind speed modeling over time through the dynamic Weibull and Gamma state space models. Properties of both models are presented and filtering, smoothing and prediction equations are analytically obtained. Efficient simulation of scenarios is obtained through the beta prime distribution, which allows fast online forecasts of wind speed. The models are compared regarding fit and predictive performance for the analysis of two wind speed datasets in different regions of Brazil. Results indicate that the dynamic Gamma model is competitive with the Weibull model for wind prediction.

Keywords: Nonstationarity; Dynamic model; Scenario prediction; Wind speed; Wind power; Bayesian forecasting (search for similar items in EconPapers)
Date: 2021
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Citations: View citations in EconPapers (3)

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DOI: 10.1016/j.rser.2020.110421

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