Ocean Systems Engineering

  • 제1권1호
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  • Pages.95-111
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  • 2011
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  • 2093-6702(pISSN)
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  • 2093-677X(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Rotor-floater-mooring coupled dynamic analysis of mono-column-TLP-type FOWT (Floating Offshore Wind Turbine)

  • Bae, Y.H. (Texas A&M University) ;
  • Kim, M.H. (Civil Engineering, Texas A&M University)
  • 투고 : 2011.02.05
  • 심사 : 2011.03.11
  • 발행 : 2011.03.25
⟨ 이전 논문 다음 논문 ⟩

초록

Increasing numbers of floating offshore wind turbines are planned and designed these days due to their high potential in massive generation of clean energy from water depth deeper than 50 m. In the present study, a numerical prediction tool has been developed for the fully-coupled dynamic analysis of FOWTs in time domain including aero-blade-tower dynamics and control, mooring dynamics, and platform motions. In particular, the focus of the present study is paid to the dynamic coupling between the rotor and floater and the coupled case is compared against the uncoupled case so that their dynamic coupling effects can be identified. For this purpose, a mono-column mini TLP with 1.5MW turbine for 80m water depth is selected as an example. The time histories and spectra of the FOWT motions and accelerations as well as tether top-tensions are presented for the given collinear wind-wave condition. When compared with the uncoupled analysis, both standard deviations and maximum values of the floater-responses/tower-accelerations and tether tensions are appreciably increased as a result of the rotor-floater dynamic coupling, which may influence the overall design including fatigue-life estimation especially when larger blades are to be used.

키워드

참고문헌

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피인용 문헌

  1. Coupled dynamic analysis of multiple wind turbines on a large single floater vol.92, 2014, https://doi.org/10.1016/j.oceaneng.2014.10.001
  2. Performance changes of a floating offshore wind turbine with broken mooring line vol.101, 2017, https://doi.org/10.1016/j.renene.2016.08.044
  3. Aero-Elastic-Control-Floater-Mooring Coupled Dynamic Analysis of Floating Offshore Wind Turbine in Maximum Operation and Survival Conditions vol.136, pp.2, 2014, https://doi.org/10.1115/1.4025029
  4. Investigation of Interference Effects Between Wind Turbine and Spar-Type Floating Platform Under Combined Wind-Wave Excitation vol.12, pp.1, 2011, https://doi.org/10.3390/su12010246