Solar irradiance forecasting using triple exponential smoothing

Soumyabrata Dev, Tarek Alskaif*, Murhaf Hossari, Radu Godina, Atse Louwen, Wilfried Van Sark

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference paperAcademicpeer-review

26 Citations (Scopus)

Abstract

Owing to the growing concern of global warming and over-dependence on fossil fuels, there has been a huge interest in last years in the deployment of Photovoltaic (PV) systems for generating electricity. The output power of a PV array greatly depends, among other parameters, on solar irradiation. However, solar irradiation has an intermittent nature and suffers from rapid fluctuations. This creates challenges when integrating PV systems in the electricity grid and calls for accurate forecasting methods of solar irradiance. In this paper, we propose a triple exponential-smoothing based forecasting methodology for intra-hour forecasting of the solar irradiance at future lead times. We use time-series data of measured solar irradiance, together with clear-sky solar irradiance, to forecast solar irradiance up-to a period of 20 minutes. The numerical evaluation is performed using 1 year of weather data, collected by a PV outdoor test facility on the roof of an office building in Utrecht University, Utrecht, The Netherlands. We benchmark our proposed approach with two other common forecasting approaches: Persistence forecasting and average forecasting. Results show that the TES method has a better forecasting performance as it can capture the rapid fluctuations of solar irradiance with a fair degree of accuracy.

Original languageEnglish
Title of host publication2018 International Conference on Smart Energy Systems and Technologies, SEST 2018 - Proceedings
PublisherIEEE
ISBN (Electronic)9781538653265
DOIs
Publication statusPublished - 17 Oct 2018
Externally publishedYes
Event2018 International Conference on Smart Energy Systems and Technologies, SEST 2018 - Sevilla, Spain
Duration: 10 Sept 201812 Sept 2018

Publication series

Name2018 International Conference on Smart Energy Systems and Technologies, SEST 2018 - Proceedings

Conference

Conference2018 International Conference on Smart Energy Systems and Technologies, SEST 2018
Country/TerritorySpain
CitySevilla
Period10/09/1812/09/18

Keywords

  • Clear sky model
  • Exponential smoothing
  • Intra-hour forecasting
  • Photovoltaic
  • Solar energy analytics

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