Experimental analysis of the scaled DTU10MW TLP floating wind turbine with different control strategies

F. J. Madsen, T. R. L. Nielsen, T. Kim*, H. Bredmose, A. Pegalajar-Jurado, R. F. Mikkelsen, A. K. Lomholt, M. Borg, M. Mirzaei, P. Shin

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

The experimental testing of a Tension Leg Platform (TLP) floating wind turbine at 1:60 scale in wind and waves with a pitch-regulated 10 MW wind turbine is presented. The floating wind turbine was tested with three different control configurations: two closed-loop controllers and one open-loop controller. The experimental setup and program is described in this paper, and system identification and the responses of the floater to hydrodynamic loading are analysed and compared for the different control strategies. It was observed that negative aerodynamic damping for the onshore controller resulted in high oscillations in blade pitch, yielding an increased response in surge for all wave types. It was also observed that the surge motion governed the mooring line tensions, thus the onshore controller yielded the highest tensions in the front mooring line. Further the shutdown cases of the offshore controller led to larger surge displacement when the shutdown was initialized right before the wave impact.
Original languageEnglish
JournalRenewable Energy
Volume155
Pages (from-to)330-346
Number of pages17
ISSN0960-1481
DOIs
Publication statusPublished - 2020

Keywords

  • Floating wind turbine
  • Scale model test
  • Control
  • Dynamic response

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