In order to compute the system response of tension leg platform wind turbines (TLPWTs), it is important to accurately capture the hydrodynamic loading not only at the wave frequency, but also in the low (difference) and high (sum) frequency ranges. The current work compares the dynamic response of several single column TLPWT designs in different wind and wave conditions using three hydrodynamic models: first order potential flow with viscous drag, first and second order potential flow with viscous drag, and a Morison’s equation model. Second order wave forces were found to have a relatively small effect on the structural load predictions: increased tendon tension variation of approximately 2–10% was observed in storm conditions, while negligible effects were observed in operational conditions. The Morison model, however, gave significantly larger pitch forcing near the natural period, leading to larger structural load predictions in all sea states.
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ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering
June 9–14, 2013
Nantes, France
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
978-0-7918-5542-3
PROCEEDINGS PAPER
Hydrodynamic Modeling of Tension Leg Platform Wind Turbines
Erin E. Bachynski,
Erin E. Bachynski
Norwegian University of Science and Technology, Trondheim, Norway
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Torgeir Moan
Torgeir Moan
Norwegian University of Science and Technology, Trondheim, Norway
Search for other works by this author on:
Erin E. Bachynski
Norwegian University of Science and Technology, Trondheim, Norway
Torgeir Moan
Norwegian University of Science and Technology, Trondheim, Norway
Paper No:
OMAE2013-10120, V008T09A003; 10 pages
Published Online:
November 26, 2013
Citation
Bachynski, EE, & Moan, T. "Hydrodynamic Modeling of Tension Leg Platform Wind Turbines." Proceedings of the ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering. Volume 8: Ocean Renewable Energy. Nantes, France. June 9–14, 2013. V008T09A003. ASME. https://doi.org/10.1115/OMAE2013-10120
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