南海海况下半潜浮式风机在故障工况下的动力学响应分析  

Dynamic Analysis of Semi-type Floating Offshore Wind Turbine with Failure Conditions Under Metocean Conditions in South China Sea

作　　者：施伟 郑侃[5] 任年鑫 SHI Wei;ZHENG Kan;REN Nianxin(Deepwater Engineering Research Center,Dalian University of Technology,Dalian116024,China;State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology,Dalian116024,China;Offshore Renewable Energy Research Center,Dalian University of Technology,Dalian116024,China;Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education,Dalian University of Technology,Dalian116024,China;Mingyang Smart Energy Group.,Ltd.,Zhongshan528437,China)

机构地区：[1]大连理工大学深海工程研究中心,大连116024 [2]大连理工大学海岸和近海工程国家重点实验室,大连116024 [3]大连理工大学海洋能研究中心,大连116024 [4]大连理工大学海洋能源利用与节能教育部重点实验室,大连116024 [5]明阳智慧能源集团股份公司,中山528437

出　　处：《南方能源建设》2018年第4期12-20,共9页Southern Energy Construction

基　　金：国家自然科学基金青年基金项目"强非线性波作用下大型海上单桩式风机的动力学特性研究"(51709039);国家自然科学基金青年基金项目"新型风-浪能装置集成结构系统的多体动力耦合效应研究"(51709040);国家自然科学基金国际合作与交流项目"考虑可恢复性的浮式海上风机平台设计方法研究"(51761135011)

摘　　要：[目的]作为新型清洁可再生能源,风力发电的发展备受瞩目。随着风力发电由陆上向海洋发展,海上浮式风电发展迅速。[方法]以南海海况下半潜浮式风机为研究背景,采用ANSYS-AQWA分析软件,对浮式风机在南海典型海况下的动力学响应进行了分析。采用等效载荷法模拟空气动力荷载,采用势流理论计算水动力荷载和系泊系统的锚链荷载。[结果]研究表明:当单根锚链发生断裂时,浮式风机的纵荡和运动会大幅增加,可能会引起平台失控。当两根锚链断裂时,在一定时间内,运动响应会适当增加。因此建议采用冗余系泊系统,即单组多根锚链,从而在单根锚链失效后为更换锚链赢取时间。[结论]研究成果为我国深海浮式风电的开发提供了一定的参考。对于舱室破损工况的破损机理及数值模拟方法,有待进一步的研究。[Introduction]As a new type of clean and renewable energy,wind power attracts widely attention.With the development of wind power from land to sea,offshore floating wind power has developed rapidly.[Method]In this paper,the commercial software ANSYS-AQWA was used to numerically analyze the dynamic response of the OC4DeepCwind semi-submersible floating wind turbine under typical sea condition of the South China Sea.The equivalent load method was used to caluclate the aerodynamic loads,and potential flow theory was used to calculate the hydrodynamic loads on the platform and the mooring force on the mooring lines.[Results]The results shows the surge and motion response will increase significantly when one mooring line is lost.This may cause the loss control of the platform.When two mooring lines are lost,the motion response will increase appropriately during a certain time.Therefore,it is recommended to use redundant mooring system,i.g.several mooring lines in one group,to have enough time to replace the damaged mooring line.[Conclusion]This work provides a certain reference to the development of offshore wind power in deep water.Further research is needed to study the mechanism of flooded columns damaged and their numerical modeling methods.

关 键 词：海上风电 浮式风机 故障工况 动力学响应 锚链力 

分 类 号：TM614[电气工程—电力系统及自动化] P742[天文地球—海洋科学]