An improved wind farm parametrization for inhomogeneous inflow

M. P. Van Der Laan*, M. Baungaard, A. Meyer Forsting, P-E Réthoré

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

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Abstract

Energy losses due to wind farm clustering and wind farm interaction are rarely well represented in the wind farm design process because of the lack of fast models that can accurately account for neighboring wind farm wakes. A recently developed solution is the actuator wind farm (AWF) model, which is a Reynolds-averaged Navier-stokes (RANS) based wind farm parametrization that models a wind farm as a distributed thrust force and applies a global wind farm thrust coefficient controller. We propose an improved version of the AWF model, where each turbine employs a local thrust force controller and uses turbine thrust and power coefficients as input to better handle inhomogeneous inflow conditions. The proposed AWF model shows improved performance compared to the original AWF model in terms of predicted wind turbine power of a downstream wind farm that operates in a partial wake of an upstream wind farm, without significantly increasing the computational effort. However, the annual energy production (AEP) wake losses of a large wind farm cluster are nearly unaffected by using local or global control and input because the largest impact is found near the cut-in wind speed, which does not contribute much to the AEP wake losses.
Original languageEnglish
Title of host publicationThe Science of Making Torque from Wind (TORQUE 2024): Wind resource, wakes, and wind farms
Number of pages10
PublisherIOP Publishing
Publication date2024
Article number092010
DOIs
Publication statusPublished - 2024
EventThe Science of Making Torque from Wind (TORQUE 2024) - Florence, Italy
Duration: 29 May 202431 May 2024

Conference

ConferenceThe Science of Making Torque from Wind (TORQUE 2024)
Country/TerritoryItaly
CityFlorence
Period29/05/202431/05/2024
SeriesJournal of Physics: Conference Series
Number9
Volume2767
ISSN1742-6588

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