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RSS FeedsEnergies, Vol. 15, Pages 845: Fuzzy Time Series Methods Applied to (In)Direct Short-Term Photovoltaic Power Forecasting (Energies)


24 january 2022 15:27:42

Energies, Vol. 15, Pages 845: Fuzzy Time Series Methods Applied to (In)Direct Short-Term Photovoltaic Power Forecasting (Energies)

Solar photovoltaic energy has experienced significant growth in the last decade, as well as the challenges related to the intermittency of power generation inherent to this process. In this paper we propose to perform short-term forecasting of solar PV generation using fuzzy time series (FTS). Two FTS methods are proposed and evaluated to obtain a global horizontal irradiance (GHI) value. The first is the weighted method and the second is the fuzzy information granular method. Using the direct proportionality of the power with the GHI, the spatial smoothing process was applied, obtaining spatial irradiance on which a first-order low pass filter was applied to simulated power photovoltaic system generation. Thus, this study proposed indirect and direct forecasting of solar photovoltaic generation which was statistically evaluated and the results showed that the indirect prediction showed better performance with GHI than the power simulation. Error statistics, such as RMSE and MBE, show that the fuzzy information granular method performs better than the weighted method in GHI forecasting.

68 viewsCategory: Biophysics, Biotechnology, Physics
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