CAJ | 학술논문

针对NREL5MW风力机设计Spar式风力机平台并采用频域分析方法对该平台的水动力性能进行分析，研究纵荡板、平台工作水深以及重心高度对其水动力性能的影响。研究表明，垂荡板可将Spar平台的垂荡响应峰值降低至无垂荡板时峰值的1／3。当水深大于设计吃水的4倍时，水深对垂荡运动影响很小，这说明Spar风力机平台适合工作在水深大于4倍平台设计吃水的海域。当加压载后，平台重心低于设计重心的距离在0~0．8倍的设计重浮心距离范围内时， Spar风力机平台实际重心位置的偏离对平台的水动力性能影响较小。分析结果将为海上浮式风力机支撑平台的设计以及水动力性能研究提供参考。
침대NREL5MW풍력궤설계Spar식풍력궤평태병채용빈역분석방법대해평태적수동력성능진행분석，연구종탕판、평태공작수심이급중심고도대기수동력성능적영향。연구표명，수탕판가장Spar평태적수탕향응봉치강저지무수탕판시봉치적1／3。당수심대우설계흘수적4배시，수심대수탕운동영향흔소，저설명Spar풍력궤평태괄합공작재수심대우4배평태설계흘수적해역。당가압재후，평태중심저우설계중심적거리재0~0．8배적설계중부심거리범위내시， Spar풍력궤평태실제중심위치적편리대평태적수동력성능영향교소。분석결과장위해상부식풍력궤지탱평태적설계이급수동력성능연구제공삼고。
In this study, a Spar?type floating platform with wind turbine was designed to support the NREL 5MW wind turbine. Besides, this platform was modeled by the SESAM software to analyze how heave?damping plate, op?erating ocean depth and height of center of gravity affect its hydrodynamic characteristics. Simulation results demon?strated that the heave?damping plate reduces the peak value of heave response to 1/3 of the corresponding value without heave?damping plate. Operating ocean depth has marginal effect on heave response when the operating o?cean depth is over 4 times of the platform’ s design draft, which means that the Spar platform with floating wind tur?bine is suitable to work in ocean zones where the ocean depth is more than 4 times of the platform’ s design draft. The actual deviation of center of gravity has less impact on the platform’ s hydrodynamic performance when the ac?tual center of gravity after loading is within 0~0.8 times of the distance between the design center of gravity and the design floating center, which is lower than the design center of gravity. The results of this study provide references for the design and hydrodynamic analysis of offshore floating wind turbine support platform.