Combination of meteorological reanalysis data and stochastic simulation for modelling wind generation variability

Matti Koivisto*, Guðrún Margrét Jónsdóttir, Poul Sørensen, Konstantinos Plakas, Nicolaos Cutululis

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

As installed wind generation capacities increase, there is a need to model variability in wind generation in detail to analyse its impacts on power systems. Utilization of meteorological reanalysis data and stochastic simulation are possible approaches for modelling this variability. In this paper, a combination of these two approaches is used to model wind generation variability. Parameters for the model are determined based on measured wind speed data. The model is used to simulate wind generation from the level of a single offshore wind power plant to the aggregate onshore wind generation of western Denmark. The simulations are compared to two years of generation measurements on 15 min resolution. The results indicate that the model, combining reanalysis data and stochastic simulation, can successfully model wind generation variability on different geographical aggregation levels on sub-hourly resolution. It is shown that the addition of stochastic simulation to reanalysis data is required when modelling offshore wind generation and when analysing onshore wind in small geographical regions.
Original languageEnglish
JournalRenewable Energy
Volume159
Pages (from-to)991-999
Number of pages9
ISSN0960-1481
DOIs
Publication statusPublished - 2020

Keywords

  • Ramp
  • Reanalysis
  • Simulation
  • Stochastic
  • Variability
  • Wind

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