Journal of Advanced Marine Engineering and Technology

The Korean Society of Marine Engineering (한국마린엔지니어링학회)
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The study on substructure design and analysis for 5MW offshore wind turbine

5MW급 해상풍력 하부구조물 설계 및 해석에 관한 연구

  • Sun, Min-Young (Korea Marine Equipment Research Institute) ;
  • Lee, Sung-Bum (Department of Naval Architecture and Ocean Engineering, Pusan National University) ;
  • Lee, Ki-Yeol (Shipbuilding & Marine Technical Manpower Agency, Kunsan National University) ;
  • Moon, Byung-Young (Department of Naval Architecture, Kunsan National University)
  • Received : 2014.07.01
  • Accepted : 2014.11.18
  • Published : 2014.11.30
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Abstract

This study aims at dedicating to relevant technology fields by suggesting design methods of structures and estimating their safety in relation to substructure for offshore wind power requiring high safety to various environment conditions. Especially, with respect to 5MW Offshore Wind Power System, this study will provide information about major wind directions and duration in combination with the developing wave climate at the test field. Therefore, connections between wind fields and approaching wave trains will be estimated and their intensity, direction and time shift will be pointed out. Furthermore, the local pressure distribution of breaking waves will be investigated by physical and numerical modeling. The currently applied structural and fatigue assessment of support structures for offshore wind energy converters is based on common design rules. Normally, constructions in structural engineering are treated as limited, single structures. This means that varying aspects of manufacturing are considered by high safety factors.

본 연구는 5MW급 해상풍력 하부구조물개발에 있어 설계에 필요한 다양한 해양환경 조건에 대하여 높은 안정성 확보가 요구되는 해상용 풍력발전 하부구조물과 관련, 구조물의 설계방법을 제시하고 그 안정성을 고찰하여 관련 기술 분야에 기여함을 목표로 한다. 특히, 5MW급 해상풍력발전 시스템에 대해 시험영역에서 큰 바람의 방향이 지속되고 있는 동안에 동시에 발달된 파도의 계산에 대한 정보를 제공한다. 그러므로 바람의 영역과 접근하는 파동 행열간의 관련성을 검토하여 강도, 방향 그리고 시간의 이동성을 계산할 수 있음을 확인하였다. 쇄파에서의 국부적인 압력분포를 물리적인 모델링과 수치적 모델링을 통해 조사하는 것이 가능하다. 해상 풍력 에너지 변환장치의 지지구조물들에 대해 최근 적용된 구조 및 피로에 대한 평가는 일반 설계규칙에 근거했다. 5MW 해상풍력 하부구조물은 제약조건이 많아 단일구조로 취급하는데 이는 생산에서 높은 안전계수를 고려해야함을 의미한다.

Keywords

References

  1. M. Hartnett, T. Mullarkey, and G. Keane, "Modal analysis of an existing oshore platform," Engineering Structures, vol. 19, pp. 487-498, 1997. https://doi.org/10.1016/S0141-0296(96)00102-2
  2. A. S. Elliott, "Analyzing rotor dynamics with a general-purpose code," Mechanical Engineering, vol. 112, no. 12, pp. 21-25, 1990.
  3. IEC 61400-1 Ed. 3, Wind Turbines - Part 1: Design Requirements, International Electrotechnical Commission (IEC), 2005.
  4. A. I. Korotkin, Added Masses of Ship Structures. Springer Science and Business Media B:V, 2009.
  5. M. Seidel, "Jacket substructures for the repower 5MW wind turbine," Proceedings European Offshore Wind Conference, p. 32, 2007.
  6. W. Musial, S. Butterfield, and B. Ram, "Energy from offshore wind," Proceedings of the Offshore Technology Conference, Houston, pp. 1-4, 2006.
  7. G. Watson, A Framework for Offshore Wind Energy Development in the United States, Massachusetts Technology Collaborative, USA, 2005.
  8. M. L. Buhl, "CombEEv user's guide," NREL/EL-500-31664, Golden, CO: National Renewable Energy Laboratory, October 2003.
  9. D. T. Greenwood, Principles of Dynamics, 2nd ed., Prentice-Hall, Inc., Englewood Cliffs, NJ, USA, 1998.
  10. J. N. Newman, Marine Hydrodynamics, The MIT Press, Cambridge, MA, USA, 1997.
  11. B. J. Jonkman and M. L. Buhl, "TurbSim user's guide," NREL/EL-500-41136, Golden, CO: National Renewable Energy Laboratory, March 2007.
  12. P. J. Moriarty, and A. C. Hansen, "AeroDyn theory manual," NREL/EL-500-36881, Golden, CO: National Renewable Energy Laboratory, December 2005.
  13. O. M. Faltinsen, Sea Loads on Ships and Offshore Structures, Cambridge University Press, Cambridge, UK, 1990.

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