Passive damping systems for floating vertical axis wind turbines analysis

Michael Borg, Esteban Utrera Ortigado, Maurizio Collu, Feargal P. Brennan

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

5 Citations (Scopus)

Abstract

The motion of floating platforms reduces the aerodynamic performance of floating wind turbines and increases fatigue loading. One approach to combat this is to use passive damping systems to reduce the motion of the floating wind turbine. In this paper an evaluation and selection of passive damping devices for a semi-submersible support structure for floating wind turbines is presented. A preliminary design for each of the three most optimal damping devices (heave bottom plates, anti-roll tanks and open-bottom tanks) mounted on the specified support structure are presented. A dynamic response analysis in the frequency domain was carried out for each of the devices. The resulting response amplitude operators (RAOs) are compared against the original support structure RAOs in heave and roll to highlight the effects of the damping systems. It was found that the heave bottom plates produced the largest motion reduction in heave whilst the anti-roll tanks performed best in roll. These three damping devices were applied to a floating vertical axis wind turbine in a time-domain analysis through the use of a de-coupled aero-hydro dynamics model.

LanguageEnglish
Title of host publicationEuropean Wind Energy Conference and Exhibition, EWEC 2013
Place of PublicationRed Hook, NY
PublisherEuropean Wind Energy Association
Pages967-976
Number of pages10
Volume2
ISBN (Print)9781632663146
Publication statusPublished - 1 Jan 2013
EventEuropean Wind Energy Conference and Exhibition, EWEC 2013 - Vienna, Austria
Duration: 4 Feb 20137 Feb 2013

Conference

ConferenceEuropean Wind Energy Conference and Exhibition, EWEC 2013
CountryAustria
CityVienna
Period4/02/137/02/13

Fingerprint

Wind turbines
Damping
Time domain analysis
Dynamic response
Dynamic models
Aerodynamics
Fatigue of materials

Keywords

  • dynamics
  • floating VAWT
  • modelling
  • offshore
  • passive damping

Cite this

Borg, M., Ortigado, E. U., Collu, M., & Brennan, F. P. (2013). Passive damping systems for floating vertical axis wind turbines analysis. In European Wind Energy Conference and Exhibition, EWEC 2013 (Vol. 2, pp. 967-976). Red Hook, NY: European Wind Energy Association.
Borg, Michael ; Ortigado, Esteban Utrera ; Collu, Maurizio ; Brennan, Feargal P. / Passive damping systems for floating vertical axis wind turbines analysis. European Wind Energy Conference and Exhibition, EWEC 2013. Vol. 2 Red Hook, NY : European Wind Energy Association, 2013. pp. 967-976
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Borg, M, Ortigado, EU, Collu, M & Brennan, FP 2013, Passive damping systems for floating vertical axis wind turbines analysis. in European Wind Energy Conference and Exhibition, EWEC 2013. vol. 2, European Wind Energy Association, Red Hook, NY, pp. 967-976, European Wind Energy Conference and Exhibition, EWEC 2013, Vienna, Austria, 4/02/13.

Passive damping systems for floating vertical axis wind turbines analysis. / Borg, Michael; Ortigado, Esteban Utrera; Collu, Maurizio; Brennan, Feargal P.

European Wind Energy Conference and Exhibition, EWEC 2013. Vol. 2 Red Hook, NY : European Wind Energy Association, 2013. p. 967-976.

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

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N2 - The motion of floating platforms reduces the aerodynamic performance of floating wind turbines and increases fatigue loading. One approach to combat this is to use passive damping systems to reduce the motion of the floating wind turbine. In this paper an evaluation and selection of passive damping devices for a semi-submersible support structure for floating wind turbines is presented. A preliminary design for each of the three most optimal damping devices (heave bottom plates, anti-roll tanks and open-bottom tanks) mounted on the specified support structure are presented. A dynamic response analysis in the frequency domain was carried out for each of the devices. The resulting response amplitude operators (RAOs) are compared against the original support structure RAOs in heave and roll to highlight the effects of the damping systems. It was found that the heave bottom plates produced the largest motion reduction in heave whilst the anti-roll tanks performed best in roll. These three damping devices were applied to a floating vertical axis wind turbine in a time-domain analysis through the use of a de-coupled aero-hydro dynamics model.

AB - The motion of floating platforms reduces the aerodynamic performance of floating wind turbines and increases fatigue loading. One approach to combat this is to use passive damping systems to reduce the motion of the floating wind turbine. In this paper an evaluation and selection of passive damping devices for a semi-submersible support structure for floating wind turbines is presented. A preliminary design for each of the three most optimal damping devices (heave bottom plates, anti-roll tanks and open-bottom tanks) mounted on the specified support structure are presented. A dynamic response analysis in the frequency domain was carried out for each of the devices. The resulting response amplitude operators (RAOs) are compared against the original support structure RAOs in heave and roll to highlight the effects of the damping systems. It was found that the heave bottom plates produced the largest motion reduction in heave whilst the anti-roll tanks performed best in roll. These three damping devices were applied to a floating vertical axis wind turbine in a time-domain analysis through the use of a de-coupled aero-hydro dynamics model.

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Borg M, Ortigado EU, Collu M, Brennan FP. Passive damping systems for floating vertical axis wind turbines analysis. In European Wind Energy Conference and Exhibition, EWEC 2013. Vol. 2. Red Hook, NY: European Wind Energy Association. 2013. p. 967-976