漂浮式风力机驳船浮式平台响应特性分析.docxVIP

漂浮式风力机驳船浮式平台响应特性分析丁勤卫1，李春1,2，成欣1，叶舟1,2（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）摘要：平台的稳定是海上漂浮式风力机能够安全运行的最基础的保障。通过建立基于驳船式平台的海上风力机整机模型，采用有限元方法，研究漂浮式风力机驳船式平台在风、浪、流三种环境载荷联合作用下时频域动态响应，通过漂浮式风力机驳船式平台在时域和频域内的变化幅度分析平台的动态特性响应，得到波浪力即F-K力和绕射力对平台六自由度运动的贡献以及各波浪力随频率的变化趋势。结果表明：平台幅值响应算子和平台所受波浪力均在低频波浪作用下出现较大响应；平台在纵荡、垂荡和纵摇方向运动响应较之其它三个方向更加明显。关键词：漂浮式风力机；驳船式平台；动态响应中图分类号：TK83文献标识码：AAnalysis on Performance of Barge Platformfor Floating Wind TurbinesDING Qinwei1, LI Chun1,2, CHENG Xin1, YE Zhou1,2(1. School of Energy and Power Engineering, University of Shanghai for Science and Technology，Shanghai 200093, China;2. Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering, Shanghai 200093,China)Abstract: Platform structure is the most basic guarantee for safety operation of offshore wind turbine .Bulid the whole machine model which is based on the ITI Energy Barge platform to research the time-domain dynamic response and frequency-domain performance on the wind，wave and current conditions. Dynamic responses of the platform structure are analyzed on the conditions of platform structure amplitude and wave frequency which change over time.Analyze the F-K force and diffraction force contribution to the structure of six degrees of freedom movement and the tendency of the wave force on frequency. The results show that Response amplitude operator (RAO) and platform of wave force are prone to large response under low frequency wave.Structure in the heave, surge and pitch direction of all six degrees of freedom move more obvious than the other three direction.Key words: floating wind turbine; Barge platform; dynamic response因煤、石油和天然气等化石能源的逐渐消耗，环境污染问题日益突出，风能作为一种清洁的永续能源逐渐受到各国的重视[1]。与陆地相比，海上有着更为丰富的风能资源、更为广阔平坦的区域，这使得海上风力发电成为近年来风电行业的热点[2-4]。海上漂浮式风力机同时要受到海风、海浪和海流等多种环境载荷的作用，导致风力机的动态响应的复杂性，进而影响风力机的稳定工作。同时，漂浮式平台作为海上漂浮式风力机的支撑结构，故其稳定性是漂浮式风力机安全运行的最基础的保障，因此，对漂浮式风力机平台在风浪流载荷联合作用下的动态响应特性研究将为海上风力机安全稳定工作评判提供理论可行性参考[5]。漂浮式风力机平台根据其获取静态稳定性的不同可分为三种基本类型：浮柱式（Spar）平台、张力腿（TLP，Tension L