로터 블레이드 결빙에 의한 타워 피로하중 평가

Evalulation of the Tower Fatigue Loads by Ice Formation on Rotor Blades

  • 투고 : 2013.09.16
  • 심사 : 2014.06.23
  • 발행 : 2014.06.30

초록

Primarily, tower loads of a wind turbine arise from aerodynamic effect and a top head mass. But sometime asymmetric loads of rotor also affect on the tower loads. Especially ice formation on two blades out of three causes the asymmetric loads, because the ice formation on blades lead to large rotating mass imbalance. This rotating mass imbalance of rotor affects tower fatigue loads. So design load cases of ice formation on blade should be considered in the fatigue design loads of the tower according to GL guideline 2010. This paper describes the change of tower fatigue loads following increase of tower height in the condition of ice formation. Finally, the optimal operation strategy is examined in order to reduce tower fatigue design loads.

키워드

과제정보

본 연구는 2012년도 산업통상자원부의 재원으로 한국에너지기술평가원(KETEP)의 지원을 받아 수행한 연구과제입니다. (No. 20123010020070)