New & Renewable Energy (신재생에너지)

Korean Society for New and Renewable Energy (한국신·재생에너지학회)
권호 표지
DOI QR코드

DOI QR Code

Effect of Wind-Wave Misalignment and Yaw Error on Power Performance and Dynamic Response of 15 MW Floating Offshore Wind Turbine

바람-파랑 오정렬과 요 오차가 15 MW급 부유식 해상풍력터빈의 출력 성능과 동적 응답에 미치는 영향

  • Sangwon Lee (Faculty of Wind Energy Engineering, Graduate School, Jeju National University) ;
  • Seongkeon Kim (Multidisciplinary Graduate School Program for Wind Energy, Jeju National University) ;
  • Bumsuk Kim (Faculty of Wind Energy Engineering, Graduate School, Jeju National University)
  • 이상원 ;
  • 김성건 ;
  • 김범석
  • Received : 2024.04.06
  • Accepted : 2024.05.20
  • Published : 2024.06.25
Download PDF
⟨ Previous Next ⟩

Abstract

Floating offshore wind turbines (FOWTs) have been developed to overcome large water depths and leverage the abundant wind resource in deep seas. However, wind-wave misalignment can occur depending on the weather conditions, and most megawatt (MW)-class turbines are horizontal-axis wind turbines subjected to yaw errors. Therefore, the power performance and dynamic response of super-large FOWTs exposed simultaneously to these external conditions must be analyzed. In this study, several scenarios combining wind-wave misalignment and yaw error were considered. The IEA 15 MW reference FOWT (v1.1.2) and OpenFAST (v3.4.1) were used to perform numerical simulations. The results show that the power performance was affected more significantly by the yaw error; therefore, the generator power reduction and variability increased significantly. However, the dynamic response was affected more significantly by the wind-wave misalignment increased; thus, the change in the platform 6-DOF and tower loads (top and base) increased significantly. These results can be facilitate improvements to the power performance and structural integrity of FOWTs during the design process.

Keywords

Acknowledgement

이 논문은 2024학년도 제주대학교 교원성과지원사업에 의하여 연구되었음.

References

  1. Global Wind Energy Council (GWEC), 2022, "Floating offshore wind -A global opportunity", GWEC, https://gwec.net/wp-content/uploads/2022/03/GWEC-Report-Floating-Offshore-Wind-A-Global-Opportunity.pdf.
  2. Clement, C., Kosleck, S., and Lie, T., 2021, "Investigation of viscous damping effect on the coupled dynamic response of a hybrid floating platform concept for offshore wind turbines", Ocean Engineering, 225, 108836.
  3. Barth, S., and Eecen P.J., 2008, "Description of the relation of wind, wave and current characteristics at the offshore wind farm egmond aan zee(OWEZ) location in 2006", Energy research Center of the Netherlands, https://www.shell.nl/about-us/what-we-do/wind/rapporten/_jcr_content/root/main/section/revealer_copy_16 09704471/revealer_item_1822097627.multi.stream/17 01448769678/6644ea7222c5ef512129c07e06a589afd4becb18/owez-r-122-wave-characteristics.pdf.
  4. Van Vledder, G.P., 2013, "On wind-wave misalignment, directional spreading and wave loads", Proc. The 32nd International Conference on Offshore Mechanics and Arctic Engineering, V005T06A087.
  5. Barj, L., Jonkman, J.M., Robertson, A., Stewart, G.M., Lackner, M.A., Haid, L., Matha, D., and Stewart, S.W., 2014, "Wind/wave misalignment in the loads analysis of a floating offshore wind turbine", Proc. The 32nd American Society of Mechanical Engineers Wind Energy Symposium, 0363.
  6. Salic, T., Charpentier, J.F., Benbouzid, M., and Le Boulluec, M., 2019, "Control strategies for floating offshore wind turbine: Challenges and trends", Electronics, 8(10), 1185.
  7. Li, X., Zhu, C., Fan, Z., Chen, X., and Tan, J., 2020, "Effects of the yaw error and the wind-wave misalignment on the dynamic characteristics of the floating offshore wind turbine", Ocean Engineering, 199, 106960.
  8. International Electrotechnical Commission (IEC), 2019, "Wind energy generation systems - Part 1: design requirements", IEC 61400-1 Standard, 4th Edition, Geneva (Switzerland).
  9. International Electrotechnical Commission (IEC), 2019, "Wind energy generation systems - Part 3-1: design requirements for fixed offshore wind turbines", IEC 61400-3-1 Standard, 1st Edition, Geneva (Switzerland).
  10. Wang, B., Li, Y., Gao, S., Shen, K., Hu, Z., and Zheng, X., 2022, "Motion characteristics and aero-elastic responses of floating offshore wind turbine under coupling action of waves and winds", Front. Environ. Sci., 10, 965334.
  11. Yin, L.L., Lo, K.H., and Wang, S.S., 2017, "Effects of blade pitch, rotor yaw, and wind-wave misalignment on a large offshore wind turbine dynamics in western gulf of mexico shallow water in 100-year return hurricane", J. Offshore Mech. Arct. Eng., 139(1), 011901.
  12. Aju, E.J., Kumar, D., Leffingwell, M., Rotea, M.A., and Jin, Y., 2023, "The influence of yaw misalignment on turbine power output fluctuations and unsteady aerodynamic loads within wind farms", Renewable Energy, 215, 118894.
  13. Gaertner, E., Rinker, J., Sethuraman, L., Zahle, F., Anderson, B., Barter, G., Abbas, N., Meng, F., Bortolotti, P., and Skrzypinski, W., et al., 2020, "Definition of the IEA 15-megawatt offshore reference wind turbine", National Renewable Energy Laboratory (NREL), https://doi.org/10.2172/1603478.
  14. Allen, C., Viscelli, A., Dagher, H., Goupee, A., Gaertner, E., Abbas, N., Hall, M., and Barter, G., 2020, "Definition of the UMaine VolturnUS-S reference platform developed for the IEA wind 15-megawatt offshore reference wind turbine", National Renewable Energy Laboratory (NREL), https://doi.org/10.2172/1660012.
  15. International Electrotechnical Commission (IEC), 2019, "Wind energy generation systems - Part 3-2: design requirements for floating offshore wind turbines", IEC 61400-3-2 Standard, 1st Edition, Geneva (Switzerland).
  16. Stewart, G.M., Robertson, A., Jonkman, J., and Lackner, M.A., 2016, "The creation of a comprehensive metocean data set for offshore wind turbine simulations", Wind Energy, 19(6), 1151-1159.