Ocean Systems Engineering

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Influence of failed blade-pitch-control system to FOWT by aero-elastic-control-floater-mooring coupled dynamic analysis

  • Bae, Yoon Hyeok (Department of Civil Engineering, Texas A&M University, College Station) ;
  • Kim, Moo-Hyun (Department of Civil Engineering, Texas A&M University, College Station)
  • Received : 2013.06.11
  • Accepted : 2013.11.30
  • Published : 2013.12.25
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Abstract

More FOWTs (floating offshore wind turbines) will be installed as relevant regulations and technological hurdles are removed in the coming years. In the present study, a numerical prediction tool has been developed for the fully coupled dynamic analysis of FOWTs in time domain including aero-loading, tower elasticity, blade-rotor dynamics and control, mooring dynamics, and platform motions so that the influence of rotor-control dynamics on the hull-mooring performance and vice versa can be assessed. The developed coupled analysis program is applied to Hywind spar design with 5 MW turbine. In case of spar-type floaters, the control strategy significantly influences the hull and mooring dynamics. If one of the control systems fails, the entire dynamic responses of FOWT can be significantly different. Therefore, it is important to maintain various control systems in a good operational condition. In this regard, the effects of failed blade pitch control system on FOWT performance including structural and dynamic responses of blades, tower, and floater are systematically investigated. Through this study, it is seen that the failure of one of the blade pitch control system can induce significant dynamic loadings on the other blades and the entire FOWT system. The developed technology and numerical tool are readily applicable to any types of floating wind farms in any combinations of irregular waves, dynamic winds, and steady currents.

Keywords

References

  1. Bae, Y.H., Kim, M.H. and Shin, Y.S. (2010), "Rotor-floater-mooring coupled dynamic analysis of mini TLP-type offshore floating wind turbines", Proceedings of the ASME 29th International Conference on Ocean, Offshore and Arctic Engineering, Shanghai, China.
  2. Bae, Y.H. and Kim, M.H. (2013a), "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. https://doi.org/10.1016/j.oceaneng.2013.01.010
  3. Bae, Y.H. and Kim, M.H. (2013b), "Coupled dynamic analysis of FOWT (Floating Offshore Wind Turbine) with partially broken blade", Proceedings of the 23rd International Offshore and Polar Engineering Conference, Anchorage, AK.
  4. Bae,Y.H. and Kim, M.H. (2011), "Rotor-floater-mooring coupled dynamic analysis of mono-column-TLP-type FOWT (Floating Offshore Wind Turbine)", Ocean Syst. Eng., 1(1), 93-109
  5. Henderson, A., Leutz, R. and Fujii, T. (2002), "Potential for floating offshore wind energy in Japanese waters", Proceedings of the 12th International Offshore and Polar Engineering Conference, Kitakyushu, Japan.
  6. Henderson, A.R., Zaaijer, M., Bulder, B., Pierik, J., Huijsmans, R., van Hees, M., Snijders, E., Wijnants, G.H. and Wolf, M.J. (2004), "Floating windfarms for shallow offshore sites", Proceedings of the 22nd International Offshore and Polar Engineering Conference, Toulon, France.
  7. Jagdale, S. and Ma, Q. (2010), "Practical simulation on motions of a TLP-type support structure for offshore wind turbines", Proceedings of the 20th International Offshore and Polar Engineering Conference, Beijing, China.
  8. Jonkman, J.M. (2003), Modeling of the UAE Wind Turbine for Refinement of FAST_AD, National Renewable Energy Laboratory, Golden, CO.
  9. Jonkman, J.M. and Buhl Jr, M.L. (2004), FAST user's guide, National Renewable Energy Laboratory, Golden, CO.
  10. Jonkman, J.M. and Sclavounos, P.D. (2006), Development of fully coupled aeroelastic and hydrodynamic models for offshore wind turbines, Paper presented at the 44th AIAA Aerospace Sciences Meeting and Exhibit, Reno, NV.
  11. Jonkman, J.M. (2007), Dynamics modeling and loads analysis of an offshore floating wind turbine, National Renewable Energy Laboratory, Golden, CO.
  12. Jonkman, J.M. (2008), "Influence of control on the pitch damping of a floating wind turbine", Proceedings of the ASME Wind Energy Symposium, Reno NV.
  13. Kang, H.Y. and Kim, M.H. (2012), "Hydrodynamic interactions and coupled dynamics between a container ship and multiple mobile harbors", Ocean Syst. Eng., 2( 3), 217-228 https://doi.org/10.12989/ose.2012.2.3.217
  14. Kim, M.H., Tahar, A. and Kim, Y.B. (2001), "Variability of TLP motion analysis against various design methodologies/parameters", Proceedings of the 11th International Offshore and Polar Engineering, Stavanger, Norway.
  15. Lee, C.H. and Newman, J.N. (1991), First-and second-order wave effects on a submerged spheroid.
  16. Musial, W.D., Butterfield, S. And Boone, A. (2004), "Feasibility of floating platform systems for wind turbines", Proceedings of the 42nd AIAA Aerospace Sciences Meeting and Exhibit, Reno, NV.
  17. Nielsen, F.G., Hanson, T.D. and Skaare, B. (2006), "Integrated dynamic analysis of floating offshore wind turbines", Proceedings of the ASME 25th International Conference on Offshore Mechanics and Arctic Engineering, Hamburg, Germany.
  18. Roddier, D., Cermelli, C. and Weinstein, A. (2009), "Windfloat: a floating foundation for offshore wind turbines part i: design basis and qualification process", Proceedings of the ASME 28th International Conference on Ocean, Offshore and Arctic Engineering, Honolulu, HI.
  19. Tahar, A. and Kim, M.H. (2003), "Hull/mooring/riser coupled dynamic analysis and sensitivity study of a tanker-based FPSO", Appl. Ocean Res., 25(6), 367-382. https://doi.org/10.1016/j.apor.2003.02.001
  20. Tong, K. (1998), "Technical and economic aspects of a floating offshore wind farm", J. Wind Eng. Ind. Aerod., 74, 399-410.
  21. Withee, J.E. (2004), Fully coupled dynamic analysis of a floating wind turbine system, Doctoral thesis, Massachusetts Institute of Technology.
  22. Yang, C.K. and Kim, M. (2010), "Transient effects of tendon disconnection of a TLP by hull?tendon?riser coupled dynamic analysis", Ocean Eng., 37(8), 667-677. https://doi.org/10.1016/j.oceaneng.2010.01.005
  23. Yang, C.K. and Kim, M.H. (2011), "The structural safety assessment of a tie-down system on a tension leg platform during hurricane events", Ocean Syst. Eng., 1( 4), 263-283. https://doi.org/10.12989/ose.2011.1.4.263

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