Preprints
https://doi.org/10.5194/wes-2021-37
https://doi.org/10.5194/wes-2021-37

  07 May 2021

07 May 2021

Review status: this preprint is currently under review for the journal WES.

FAST.Farm load validation for single wake situations at alpha ventus

Matthias Kretschmer1, Jason Jonkman2, Vasilis Pettas1, and Po Wen Cheng1 Matthias Kretschmer et al.
  • 1Stuttgart Wind Energy (SWE) at Institute of Aircraft Design, University of Stuttgart, Allmandring 5b, 70569 Stuttgart, Germany
  • 2National Renewable Energy Laboratory, 15013 Denver West Parkway, Golden, CO 80401, USA

Abstract. The main objective of the presented work is the validation of the simulation tool FAST.Farm for the calculation of power and structural loads in single wake situations; the basis for the validation is the measurement data base of the operating offshore wind farm alpha ventus. The approach is described in detail and covers calibration of the aeroelastic turbine model, transfer of environmental conditions to simulations and comparison between simulations and adequately filtered measurements. It is shown that FAST.Farm accurately predicts power and structural load distributions over wind direction. Additionally, the frequency response of the structure is investigated and it is calculated by FAST.Farm in good agreement with the measurements. In general, the calculation of fatigue loads is improved with a wake-added turbulence model added to FAST.Farm in the course of this study.

Matthias Kretschmer et al.

Status: final response (author comments only)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on wes-2021-37', Anonymous Referee #1, 12 May 2021
  • RC2: 'Comment on wes-2021-37', Adam Wise, 09 Jul 2021

Matthias Kretschmer et al.

Matthias Kretschmer et al.

Viewed

Total article views: 467 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
323 134 10 467 5 7
  • HTML: 323
  • PDF: 134
  • XML: 10
  • Total: 467
  • BibTeX: 5
  • EndNote: 7
Views and downloads (calculated since 07 May 2021)
Cumulative views and downloads (calculated since 07 May 2021)

Viewed (geographical distribution)

Total article views: 446 (including HTML, PDF, and XML) Thereof 446 with geography defined and 0 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Latest update: 25 Jul 2021
Download
Short summary
We perform a validation of the new simulation tool FAST.Farm for the prediction of power output and structural loads in single wake conditions with respect to measurement data from the offshore wind farm alpha ventus. With a new wake-added turbulence functionality added to FAST.Farm, good agreement between simulations and measurements is achieved for the considered quantities. Hereby, we give insights into load characteristics of an offshore wind turbine subjected to single wake conditions.