Preprints
https://doi.org/10.5194/wes-2022-30
https://doi.org/10.5194/wes-2022-30
 
05 Apr 2022
05 Apr 2022
Status: this preprint is currently under review for the journal WES.

Brief communication: How does complex terrain change the power curve of a wind turbine?

Niels Troldborg, Søren Juhl Andersen, Emily Louise Hodgson, and Alexander Meyer Forsting Niels Troldborg et al.
  • DTU Wind Energy, Frederiksborgvej 399 4000, Roskilde, Denmark

Abstract. The power performance of a wind turbine in complex terrain is studied by means of Large Eddy Simulations (LES). The simulations show that the turbine performance is significantly different compared to what should be expected from the available wind. The reason for this deviation is that the undisturbed flow field behind the turbine is non-homogeneous and therefore results in a very different wake development and induction than seen for a turbine in flat homogeneous terrain.

Niels Troldborg et al.

Status: open (until 07 Jun 2022)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Great simulations to understand the interplay between power curve response and complex terrain and roughness characteristics', Javier Sanz Rodrigo, 13 May 2022 reply

Niels Troldborg et al.

Niels Troldborg et al.

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Short summary
This article shows that the power performance of a wind turbine may be very different in flat and complex terrain. This is an important finding because it shows that the power output of a given wind turbine is not only governed by the available wind at the position of the turbine but also on how the ambient flow develops in the region behind the turbine.