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논문 기본 정보

자료유형
학술저널
저자정보
조태환 (한국항공우주연구원) 김양원 (한국항공우주연구원) 장일영 (한국항공우주연구원) 박철완 (한국항공우주연구원) 김정환 (라은테크)
저널정보
한국풍력에너지학회 풍력에너지저널 풍력에너지저널 제8권 제2호
발행연도
2017.12
수록면
39 - 44 (6page)

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A wind tunnel test for the side-furling device that was used for a horizontal type small wind turbine to reducethe output power in a high wind speed condition was conducted in a 5 m × 3.75 m open-jet test section. Asimple experimental wind turbine model with a “MEXICO blade” and electric motor was used to simulate thesmall wind turbine system. The furling force of the tail was measured by a force sensor installed on the furlingarm and the yawing moment of the turbine was measured by a moment sensor installed on the turbine strut. The turbine power was calculated by using the torque of the rotating axis and the rotational speed of the blade. Force characteristics of the tail system were studied by changing the arm length, wind speed and flow direction. Moment characteristics of the nacelle and blade system were studied by changing the offset distance, wind speedand RPM. Moment equilibrium conditions for the typical wind speed were estimated from those test results andconfirmed by a fixed-tail-angle test. A free-tail-angle test was also conducted to verify the effect of theside-furling device in high wind speed conditions.

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