DOI QR코드

DOI QR Code

Semi-active control of vibrations of spar type floating offshore wind turbines

  • Van-Nguyen, Dinh (Software Division, Wood Group Kenny, Galway Technology Park) ;
  • Basu, Biswajit (Department of Civil, Structural and Environmental Engineering, Trinity College Dublin) ;
  • Nagarajaiah, Satish (Departments of Civil and Environmental Engineering and Mechanical Engineering, Rice University)
  • 투고 : 2015.03.07
  • 심사 : 2016.03.28
  • 발행 : 2016.10.25

초록

A semi-active algorithm for edgewise vibration control of the spar-type floating offshore wind turbine (SFOWT) blades, nacelle and spar platform is developed in this paper. A tuned mass damper (TMD) is placed in each blade, in the nacelle and on the spar to control the vibrations for these components. A Short Time Fourier Transform algorithm is used for semi-active control of the TMDs. The mathematical formulation of the integrated SFOWT-TMDs system is derived by using Euler-Lagrangian equations. The theoretical model derived is a time-varying system considering the aerodynamic properties of the blade, variable mass and stiffness per unit length, gravity, the interactions among the blades, nacelle, spar, mooring system and the TMDs, the hydrodynamic effects, the restoring moment and the buoyancy force. The aerodynamic loads on the nacelle and the spar due to their coupling with the blades are also considered. The effectiveness of the semi-active TMDs is investigated in the numerical examples where the mooring cable tension, rotor speed and the blade stiffness are varying over time. Except for excessively large strokes of the nacelle TMD, the semi-active algorithm is considerably more effective than the passive one in all cases and its effectiveness is restricted by the low-frequency nature of the nacelle and the spar responses.

키워드

과제정보

연구 과제 주관 기관 : SYSWIND

참고문헌

  1. Arrigan, J., Huang, C., Staino, A., Basu, B. and Nagarajaiah, S. (2014), "A frequency tracking semi-active algorithm for control of edgewise vibrations in wind turbine blades", Smart Struct. Syst., 13(2), 177-201, DOI: 10.12989/sss.2014.13.2.177.
  2. Arrigan, J., Pakrashi, V., Basu, B. and Nagarajaiah, S. (2011), "Control of flapwise vibration in wind turbine blades using semi-active tuned mass dampers", Struct. Control Health Monit., 18(8), 840-851, DOI: 1002/stc.404. https://doi.org/10.1002/stc.404
  3. Basu, B., Staino, A. and Dinh, V.N. (2012), "Vibration of wind turbines under seismic excitations", Proceedings of The 5th Asian-Pacific Symposium on Structural Reliability and its Applications, Singapore , 439-444, DOI: 10.3850/978-981-07-2219-7_P403.
  4. Colwell, S. and Basu, B. (2009), "Tuned liquid column dampers in offshore wind turbines for structural control", Eng. Struct., 31, 358-368, DOI:10.1016/j.engstruct.2008.09.001.
  5. Dinh, V.N. and Basu, B. (2012), "Zero-pad effects on conditional simulation and application of spatially-varying earthquake motions", Proceedings of The 6th European Workshop on Structural Health Monitoring, Dresden, Germany, 893-899. URL: www.ndt.net/article/ewshm2012/papers/tu3d3.pdf
  6. Dinh, V.N. and Basu, B. (2013), "On the modelling of spar-type floating offshore wind turbines", Key Eng. Mater., 569-570, 536-543, DOI:10.4028/www.scientific.net/KEM.569-570.636.
  7. Dinh, V.N. and Basu, B. (2015), "Passive control of floating offshore wind turbine nacelle and spar vibrations by multiple tuned mass damper", Struct. Control Health Monit., 22(1), 152-176, DOI: 1002/stc.1666. https://doi.org/10.1002/stc.1666
  8. Dinh, V.N., Basu, B. and Nielsen, S.R.K. (2013), "Impact of spar-nacelle-blade coupling on the edgewise response of floating offshore wind turbines", Coupled Syst. Mech., 2(3), 231-253. https://doi.org/10.12989/csm.2013.2.3.231
  9. Faltinsen, O.M. (1990), Sea Loads on Ships and Offshore Structures, Cambridge University Press.
  10. Fitzgerald, B., Basu, B. and Nielsen, S.R.K. (2013), "Active tuned mass dampers for control of inplane vibrations of wind turbine blades", Struct. Control Health Monit., 20(12), 1377-1396, DOI: 1002/stc.1524. https://doi.org/10.1002/stc.1524
  11. Flexcom. www.mcskenny.com/support/flexcom (accessed August 2015).
  12. Hansen, M.H. (2003), "Improved modal dynamics of wind turbines to avoid stall-induced vibrations", Wind Energy, 6(2), 179-195, DOI:10.1002/we.79.
  13. Huang, C., Arrigan, J., Nagarajaiah, S. and Basu, B. (2010), "Semi-active algorithm for edgewise vibration control in floating wind turbine blades", Proceedings of the ASCE Earth and Space Conference, CD ROM, DOI: 10.1061/41096(366)192.
  14. International Electrotechnical Commission (IEC) (2006), IEC 61400-3, Wind Turbines - Part 3: Design Requirements for Offshore Wind Turbines.
  15. ISSC (2009), Specialist Committee V.4, Ocean wind and wave energy utilization, 17th International Ship and Offshore Structures Congress, Seoul, Korea.
  16. Jonkman, J.M. (2010), Definition of the floating system for Phase IV of OC3, Technical Report NREL/TP-500-47535, Golden, CO, USA.
  17. Jonkman, J.M., Butterfield, S., Musial, W. and Scott, G. (2009), Definition of a 5-MW reference wind turbine for offshore system development, Technical Report NREL/TP-500-38060, USA.
  18. Lackner, M.A. (2009), "Controlling platform motions and reducing blade loads for floating wind turbines", Wind Eng., 33(6), 541-553. https://doi.org/10.1260/0309-524X.33.6.541
  19. Lackner, M.A. and Rotea. M.A (2011), "Structural control of floating wind turbines", Mechatronics, 21, 704-719, DOI:10.1016/j.mechatronics.2010.11.007.
  20. MATLAB, The MathWorks, Inc., Natick, United States. Release 2011b.
  21. Murtagh, P.J., Ghosh, A., Basu, B. and Broderick, B.M. (2008), "Passive control of wind turbines vibrations including blade/tower interaction and rotationally sampled turbulence", Wind Energy, 11(4), 305-317. https://doi.org/10.1002/we.249
  22. Nagarajaiah, S. (2009), "Adaptive passive, semiactive, smart tuned mass dampers: identification and control using empirical mode decomposition, Hilbert transform, and short-term Fourier transform", Struct. Control Health Monit., 16(7-8), 800-841, DOI: 10.1002/stc.349.
  23. Nagarajaiah, S. and Sonmez, E. (2007), "Structures with semiactive variable stiffness single/multiple tuned mass dampers", J. Struct. Eng. - ASCE, 133(1), 67-77. https://doi.org/10.1061/(ASCE)0733-9445(2007)133:1(67)
  24. Nagarajaiah, S. and Varadarajan, N. (2005), "Short time Fourier transform algorithm for wind response control of buildings with variable stiffness TMD", Eng. Struct., 27, 431-441. https://doi.org/10.1016/j.engstruct.2004.10.015
  25. Sannasiraj, S.A., Sundar, V. and Sundaravadivelu, R. (1998), "Mooring forces and motion responses of pontoon-type floating breakwaters", Ocean Eng., 25(1), 27-48. https://doi.org/10.1016/S0029-8018(96)00044-3
  26. Sarpkaya, T. and Isaacson, M. (1981), Mechanics of Wave Forces on Offshore Structures, Van Nostrand Reinhold, NewYork.
  27. Staino, B., Basu, B. and Nielsen, S.R.K. (2012), "Actuator control of edgewise vibrations in wind turbine blades", J. Sound Vib., 331, 1233-1256, DOI:10.1016/j.jsv.2011.11.003.
  28. Waris, M.B. and Ishihara, T. (2012), "Dynamic response analysis of floating offshore wind turbine with different types of heave plates and mooring systems by using a fully nonlinear model", Coupled Syst. Mech., 1(3), 247-268. https://doi.org/10.12989/csm.2012.1.3.247

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  11. Control Strategies for Floating Offshore Wind Turbine: Challenges and Trends vol.8, pp.10, 2016, https://doi.org/10.3390/electronics8101185
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  15. Hybrid vibration control of offshore wind turbines under multiple external excitations vol.12, pp.4, 2016, https://doi.org/10.1063/5.0003394
  16. Study on a 3D pounding pendulum TMD for mitigating bi-directional vibration of offshore wind turbines vol.241, pp.None, 2021, https://doi.org/10.1016/j.engstruct.2021.112383
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  18. Conceptual design and dynamic analysis of a novel passive floating offshore wind turbine structure vol.16, pp.10, 2016, https://doi.org/10.1080/17445302.2020.1791684