浅吃水SPAR型浮式风力机断缆情况下的动力响应分析  

Dynamic response analysis of a reduced draft SPAR-type floating off⁃shore wind turbine under fractured mooring line scenarios

作　　者：李耀隆 李焱[1,2,3] 高靖[1,2,3] 张若瑜 唐友刚[1,2,3] 刘佳琪[1,2,3] LI Yao-long;LI Yan;GAO Jing;ZHANG Ruo-yu;TANG You-gang;LIU Jia-qi(State Key Laboratory of Hydraulic Engineering Simulation and Safety,Tianjin University,Tianjin 300350,China;Tianjin Key Laboratory of Port and Ocean Engineering,Tianjin University,Tianjin 300350,China;School of Civil Engineering,Tianjin University,Tianjin 300350,China)

机构地区：[1]天津大学水利工程仿真与安全国家重点实验室,天津300350 [2]天津大学天津市港口与海洋工程重点实验室,天津300350 [3]天津大学建筑工程学院,天津300350

出　　处：《振动工程学报》2023年第3期729-736,共8页Journal of Vibration Engineering

基　　金：国家自然科学基金资助项目(52001230);中国博士后科学基金资助项目(2021T140506,2019M651042);上海交通大学海洋工程国家重点实验室开放基金资助项目(GKZD010081);国家级大学生创新创业训练计划项目(202110056024)。

摘　　要：随着风电开发逐渐走向深远海,漂浮式风力机优势更为显著,但当前国际上相对成熟的SPAR型浮式风力机吃水较深,受中国海域水深条件限制,该技术难以直接应用。为此,本文面向100 m深海域,提出一种浅吃水SPAR型基础,基于三维势流理论分析其水动力性能,在此基础上研究该浅吃水SPAR型浮式风力机在不同情况下断缆后的动力响应,在时域内分析浮式风力机单根系泊缆破断后的风力机运动响应及系泊缆张力的变化。进而分析了预张力与风力机作业状态对断缆后风力机运动状态的影响。研究结果表明该浮式风力机能适应在100 m水深海域的正常工作,但系泊缆断裂后浮式风力机将发生大幅漂移,严重影响风场内其他风力机的正常作业,并对一定范围内运行的船舶存在潜在威胁。With the wind power development gradually going to the deep water area,the floating offshore wind turbine(FOWT)shows great advantages.However,the SPAR-type FOWT,which is more mature around the world,is usually in deeper draft.Due to the limitation of water depth in the China offshore areas,this technology can hardly be directly adopted.To overcome this issue,a new-type reduced-draft SPAR-type foundation is proposed for 100-meter-depth offshore area.Based on the three dimensional potential theory,the hydrodynamic performance is analyzed.Furthermore,its dynamic performance under different scenarios of mooring fracture is studied.The motions of the wind turbine and the mooring tension are simulated in the time domain,after one mooring line of the FOWT is broken.Moreover,the influence of mooring pretension and the wind turbine operational status on the motion of FOWT is investigated.According to the results,the FOWT could work normally in the offshore areas where the water depth is 100 m,but the large drift motion is observed after the mooring line of the FOWT is fractured.This will severely influence other wind turbine in the same wind farm,and it has potential threats on the nearby ships.

关 键 词：浮式风力机 水动力 空气动力 浅吃水SPAR基础 系泊缆断裂 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程] TV131.2[水利工程—水力学及河流动力学] V211[航空宇航科学与技术—航空宇航推进理论与工程]