Advertisement

China Ocean Engineering

, Volume 30, Issue 4, pp 505–520 | Cite as

Coupled dynamic response analysis of a multi-column tension-leg-type floating wind turbine

  • Yong-sheng Zhao (赵永生)
  • Jian-min Yang (杨建民)
  • Yan-ping He (何炎平)Email author
  • Min-tong Gu (顾敏童)
Article

Abstract

This paper presents a coupled dynamic response analysis of a multi-column tension-leg-type floating wind turbine (WindStar TLP system) under normal operation and parked conditions. Wind-only load cases, wave-only load cases and combined wind and wave load cases were analyzed separately for the WindStar TLP system to identify the dominant excitation loads. Comparisons between an NREL offshore 5-MW baseline wind turbine installed on land and the WindStar TLP system were performed. Statistics of selected response variables in specified design load cases (DLCs) were obtained and analyzed. It is found that the proposed WindStar TLP system has small dynamic responses to environmental loads and it thus has almost the same mean generator power output under operating conditions as the land-based system. The tension mooring system has a sufficient safety factor, and the minimum tendon tension is always positive in all selected DLCs. The ratio of ultimate load of the tower base fore-aft bending moment for the WindStar TLP system versus the land-based system can be as high as 1.9 in all of the DLCs considered. These results will help elucidate the dynamic characteristics of the proposed WindStar TLP system, identify the difference in load effect between it and land-based systems, and thus make relevant modifications to the initial design for the WindStar TLP system.

Key words

floating wind turbine windStar TLP coupled dynamic response operating and parked condition 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Adam, F., Steinke, C., Dahlhaus, F. and Gromann, J. 2013. GICON-TLP for wind turbines-validation of calculated results, Proceedings of the 23rd International Offshore and Polar Engineering Conference, Anchorage, USA, 1, 421–427.Google Scholar
  2. Ahmad, S., Islam, N. and Ali, A., 1997. Wind-induced response of a tension leg platform, Journal of Wind Engineering and Industrial Aerodynamics, 72, 225–240.CrossRefGoogle Scholar
  3. American Petroleum Institute (API), 2004. Bulletin on Stability Design of Cylindrical Shells, 3rd ed., USA.Google Scholar
  4. American Bureau of Shipping (ABS) 2012. Rules for Building and Classing Mobile Offshore Drilling Units, Part 3: Hull Construction and Equipment, USA.Google Scholar
  5. American Bureau of Shipping (ABS), 2012. Guidance Notes on Global Performance Analysis for Floating Offshore Wind Turbine, USA.Google Scholar
  6. Bae, Y. H. and Kim, M. H., 2013. Rotor-floater-tether coupled dynamics including second-order sum-frequency wave loads for a mono-column-TLP-type FOWT (floating offshore wind turbine), Ocean Eng., 61, 109–122.CrossRefGoogle Scholar
  7. Bachynski, E. E. and Moan, T., 2012. Design considerations for tension leg platform wind turbines, Marine Structures, 29(1): 89–114.CrossRefGoogle Scholar
  8. Burton, T., Sharpe, D., Jenkins, N. and Bossanyi, E., 2011. Wind Energy Handbook, John Wiley & Sons, New York.CrossRefGoogle Scholar
  9. Det Norske Veritas, 2008. Wadam Theory Manual, HØVIK, Norway.Google Scholar
  10. Faltinsen, O. M., 1995. Sea Loads on Ships and Offshore Structures, Cambridge University Press, UK.Google Scholar
  11. International Electrotechnical Committee (IEC), 2005. IEC 61400-1: Wind turbines part 1: Design requirements.Google Scholar
  12. Jonkman, B. J. and Buhl, M. L., 2007. TurbSim User’s Guide, National Renewable Energy Laboratory, USA.Google Scholar
  13. Jonkman, J. M., 2007. Dynamics Modeling and Loads Analysis of An Offshore Floating Wind Turbine, National Renewable Energy Laboratory, USA.CrossRefGoogle Scholar
  14. Jonkman, J. M. and Buhl, M. L., 2005. FAST User’s Guide, National Renewable Energy Laboratory, USA.Google Scholar
  15. Jonkman, J. M., 2009. Dynamics of offshore floating wind turbines-model development and verification, Wind Energy, 12(5): 59–492.MathSciNetCrossRefGoogle Scholar
  16. Jonkman, J. M., Butterfield S., Musial, W. and Scott, G., 2009. Definition of A 5-MW Reference Wind Turbine for Offshore System Development, National Renewable Energy Laboratory, USA.CrossRefGoogle Scholar
  17. Jonkman, J. M. and Matha, D., 2011. Dynamics of offshore floating wind turbines-analysis of three concepts, Wind Energy, 14(4): 557–569.CrossRefGoogle Scholar
  18. LaNier, M. W., 2005. LWST Phase I Project Conceptual Design Study: Evaluation of Design and Construction Approaches for Economical Hybrid Steel/Concrete Wind Turbine Towers, Technical Report NREL/SR-500-36777, NREL, USA.Google Scholar
  19. Manwell, J. F., McGowan, J. G. and Rogers, A. L., 2002. Wind Energy Explained: Theory, Design and Application, John Wiley&Sons Ltd., UK.CrossRefGoogle Scholar
  20. Martin, H., 2008. Aerodynamics of Wind Turbines, Earthscan, UK.Google Scholar
  21. Moriarty, P. J. and Hansen, A. C., 2005. AeroDyn Theory Manual, National Renewable Energy Laboratory, USA.CrossRefGoogle Scholar
  22. Nestor Agbayani, P. E. and Kyatham, V., 2009. Fatigue-driven wind farm towers: A practical introduction to fatigue calculations, Structures Congress, ASCE, http://dx.doi.org/10.1061/41031(341)233.Google Scholar
  23. Nielsen, F. G., Hanson, T. D. and Skaare, B., 2006. Integrated dynamic analysis of floating offshore wind turbines, Proceedings of the 25th International Conference on Offshore Mechanics and Arctic Engineering, Hamburg, Germany, OMAE2006-92291, 671–679.Google Scholar
  24. Suzuki, K., Yamaguchi, H., Akase, M., Imakita, A., Ishihara, T., Fukumoto, Y. and Oyama, T., 2011. Initial design of tension leg platform for offshore wind farm, Journal of Fluid Science and Technology, 6(3): 372–381.CrossRefGoogle Scholar
  25. WAFO Group, 2000. WAFO–A Matlab Toolbox for Analysis of Random Waves and Loads, Lund Institute of Technology, Sweden.Google Scholar
  26. Zhao, Y. S., Yang, J. M. and He, Y. P., 2012. Preliminary design of a multi-column TLP foundation for a 5-MW offshore wind turbine, Energies, 5(10): 3874–3891.CrossRefGoogle Scholar

Copyright information

© Chinese Ocean Engineering Society and Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  • Yong-sheng Zhao (赵永生)
    • 1
  • Jian-min Yang (杨建民)
    • 1
  • Yan-ping He (何炎平)
    • 1
    Email author
  • Min-tong Gu (顾敏童)
    • 1
  1. 1.State Key Laboratory of Ocean EngineeringShanghai Jiao Tong UniversityShanghaiChina

Personalised recommendations