浮式风力机平台动态响应优化研究  

RESEARCH ON OPTIMIZATION FOR DYNAMIC RESPONSE OF PLATFORM OF FLOATING WIND TURBINE

作　　者：丁勤卫 李春[1,2] 叶舟[1,2] 周国龙[1] 王东华[1] 

机构地区：[1]上海理工大学能源与动力工程学院,上海200093 [2]上海市动力工程多相流动与传热重点实验室,上海200093

出　　处：《太阳能学报》2017年第5期1405-1414,共10页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(E51176129);上海市教育委员会科研创新(重点)项目(13ZZ120;13YZ066);教育部高等学校博士学科点专项科研基金(博导)项目(20123120110008)

摘　　要：为探究漂浮式风力机平台的动态响应及其优化措施,建立基于OC3-Hywind Spar Buoy平台的NREL 5 MW漂浮式风力机模型,并对平台分别附加垂荡板和螺旋侧板。通过辐射/衍射理论并结合有限元方法,考虑风、浪、流载荷的联合作用,对平台的动态响应进行数值模拟分析,得到各波浪力随波浪频率的变化及平台在纵荡、垂荡和纵摇方向上的动态响应。结果表明:附加螺旋侧板可明显降低平台所受一阶波浪力,附加垂荡板效果不明显;附加垂荡板和螺旋侧板可明显抑制平台在垂荡、纵摇方向的运动,对纵荡方向响应抑制效果不明显;平台所受二阶波浪力数值远小于一阶波浪力。In order to study the dynamic response of offshore wind turbine and optimize the design, this paper modeled NREL 5 MW offshore wind turbine based on OC3-Hywind Spar Buoy platform and modified the platform by adding heave plate and helical strakes. Considering the wave force theory of radiation and diffraction with the affection of wind and current, numerical simulation was carried out to calculate the dynamic response of platform. The change of wave force with changing wave frequency and the surge, heave and pitch motion of response are analyzed. The results show that the attached helical strakes could significantly reduce the motion of heave and pitch, but the effect on surge motion is not obvious. It also concludes that the 2nd order wave forces on platform are much less than 1st order wave force.

关 键 词：漂浮式风力机 平台 波浪力 垂荡板 螺旋侧板 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]