普通海况下驳船式平台漂浮式风电场平台动态响应研究  

Dynamic Response of Floating Wind Farm Platform Based on Barge Platform under Common Sea Conditions

作　　者：王博 丁勤卫 李春[1,2] 岳敏楠 WANG Bo;DING Qinwei;LI Chun;YUE Minnan(School of Energy and Power Engineering,University of Shanghai for Science and Technology,Shanghai 200093;Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering,Shanghai 200093)

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：《机械工程学报》2021年第6期171-183,共13页Journal of Mechanical Engineering

基　　金：国家自然科学基金(51676131);国家自然基金国际(地区)合作与交流(51811530315);上海市“科技创新行动计划”地方院校能力建设(19060502200)资助项目。

摘　　要：漂浮式风力机的稳定是其正常工作的基础。在深海环境中,载荷复杂且不稳定,受其影响漂浮式风力机将产生复杂的激励运动。建立基于ITI Energy Barge平台的NREL 5 MW漂浮式风力机整机模型,提出Barge平台漂浮式风电场。通过高级程序语言编程求解气动载荷,运用水动力学软件AQWA,采用辐射/绕射理论并结合有限元方法,对海风、波浪载荷作用下漂浮式风电场平台的动态响应进行数值仿真。频域分析结果如下:Barge平台在纵荡、垂荡和纵摇方向的响应主要集中在低频区域,其中,纵荡、垂荡响应随波浪频率增加逐渐减小,而纵摇响应先增加后减小。时域分析结果如下:漂浮式风电场平台运动轨迹关于风浪入射方向对称。较之于Barge平台,与固定悬链线相连的第一列平台垂荡运动响应稍大,但波动幅度差别可忽略不计;其纵摇和机舱稳定性均得以增强;横摇、艏摇运动幅值很小。研究表明所提漂浮式风电场平台具有良好的稳定性,为进一步的研究工作奠定了基础。The stability of the floating wind turbine is the most fundamental guarantee for its normal work.In the deep sea,the complexity and variability of the environment load inevitably lead to the complex dynamic response of the floating wind turbine.Whole model of floating wind turbine is established based on the ITI Energy Barge platform and the NREL 5 MW wind turbine,and a floating wind farm based on Barge platform is proposed.The advanced programming language is employed to accomplish the solution of aerodynamic load,and the numerical simulation hydrodynamic software AQWA based on the radiation/diffraction theory and the finite element is used to simulate the dynamic response of floating wind farm platform under the effect of wind and wave.Frequency domain analysis results:The surge,heave and pitch responses of the floating wind turbine Barge platform are mainly concentrated on the low-frequency region.The surge and heave responses show the trend of decrease with the increase of wave frequency,while the pitch response shows the trend of first increase and then decrease.Time domain analysis results:The motion track of the floating wind farm platform is symmetrical with respect to the incident direction of the wind and wave.Compared with the Barge platform,the heave motion of the first row platform connected with the fixed catenary in the floating wind farm is slightly larger,but the differences can be neglected.In addition,the pitch and cabin stability of floating wind farm platform are improved,and its intensity of the fluctuation of the platform in roll and yaw is very small.It is shown that the floating wind farm platform proposed has good stability,which lays a foundation for further research.

关 键 词：Barge平台 漂浮式 风电场 稳定性 动态响应 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]