대한기계학회논문집B (Transactions of the Korean Society of Mechanical Engineers B)

  • 제38권4호
  • /
  • Pages.289-309
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  • 2014
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  • 1226-4881(pISSN)
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  • 2288-5324(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
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Multi-MW급 풍력발전용 블레이드 설계에 관한 연구 Part I : 공력-구조 설계 및 통합하중해석

Multi-MW Class Wind Turbine Blade Design Part I : Aero-Structure Design and Integrated Load Analysis

  • 김범석 ((사)한국선급 신재생에너지연구팀)
  • Kim, Bum Suk (New & Renewable Energy Research Team, Korean Register of Shipping)
  • 투고 : 2013.08.08
  • 심사 : 2014.03.04
  • 발행 : 2014.04.01
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초록

풍력터빈 블레이드는 바람의 운동에너지를 기계적 에너지로 변환하는 장치로써 풍력발전시스템의 출력성능, 에너지변환효율, 하중 및 동적 안정성에 영향을 미칠 수 있기 때문에 주요부품으로 분류된다. 따라서 최적의 블레이드 설계결과를 얻기 위해서는 시스템 특성이 고려된 공력-구조 통합설계가 중요하다. 본 연구에서는 풍력터빈 시스템과의 상호작용이 고려된 블레이드 설계절차를 제안하였고, 2 MW 급 블레이드(KR40.1b)의 공력-구조 통합 설계결과를 제시하였다. 또한 전술한 바와 같이 로터 블레이드에 작용하는 극한하중 및 피로하중은 시스템 운전조건에 따라 가변적이므로 시스템통합하중해석을 위한 2 MW 풍력발전시스템 모델링을 수행하였으며, IEC 61400-1 및 (사)한국선급의 풍력발전기술기준에 따라 수행된 하중해석결과를 제시하였다.

A rotor blade is an important device that converts kinetic energy of wind into mechanical energy. Rotor blades affect the power performance, energy conversion efficiency, and loading and dynamic stability of wind turbines. Therefore, considering the characteristics of a wind turbine system is important for achieving optimal blade design. This study examined the general blade design procedure for a wind turbine system and aero-structure design results for a 2-MW class wind turbine blade (KR40.1b). As suggested above, a rotor blade cannot be designed independently, because its ultimate and fatigue loads are highly dependent on system operating conditions. Thus, a reference 2-MW wind turbine system was also developed for the system integrated load calculations. All calculations were performed in accordance with IEC 61400-1 and the KR guidelines for wind turbines.

키워드

참고문헌

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