Integrated design of a semi-submersible floating vertical axis wind turbine (VAWT) with active blade pitch control

Fons Huijs, Ebert Vlasveld, Maël Gormand, Feike Savenije, Marco Caboni, Bruce Leblanc, Carlos Ferreira, Koert Lindenburg, More Authors

Research output: Contribution to journalConference articleScientificpeer-review

6 Citations (Scopus)
78 Downloads (Pure)


A semi-submersible Tri-Floater has been designed to support a 6 MW vertical axis wind turbine (VAWT) with active blade pitch control. Due to the low centre of gravity and large allowable floater tilt angle, a relatively small floater can be used to support a VAWT. Coupled simulations including hydrodynamics, mooring system, aerodynamics and control system have been performed to analyse the strongly coupled dynamics of floater and wind turbine. Software tools have been developed or upgraded to enable these simulations. Based on typical extreme operational and survival design load cases, it is illustrated that the active blade pitch control system can be successfully used to minimize the governing loads on the floater. Whereas for a VAWT with fixed blades, the parked survival conditions are typically design driving for the floating support structure, this is not the case if blade pitch control is applied. It is concluded that, compared to a horizontal axis wind turbine (HAWT) with the same rated power, a 20 percent lighter floater can be used as support structure for the VAWT with active blade pitch control.
Original languageEnglish
Article number012022
Number of pages12
JournalJournal of Physics: Conference Series
Publication statusPublished - 2018
Event15th Deep Sea Offshore Wind R&D Conference - Radisson Blu Royal Garden Hotell, Trondheim, Norway
Duration: 17 Jan 201819 Jan 2018
Conference number: 15


  • floating wind turbine
  • semi-submersible
  • vertical axis wind turbine (VAWT)
  • active blade pitch control
  • coupled aero-hydro-servo-elastic simulations


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