摘要
针对半潜漂浮式风电基础初步选型,采用Pareto⁃Optimal评价方法对不同吃水、平台立柱直径、立柱间距和垂荡板直径四个参数的不同组合进行分析比较。基于浮体动力学频域计算方法,采用我国阳江某海域极限波浪条件计算得到叶轮中心水平加速度,同时考虑完整稳性的计算结果。对比分析表明平台吃水和立柱直径宜选择适中的取值,较大的排水量和立柱总体积并不会显著减小叶轮中心水平加速度。垂荡板对于改善平台整体性能是较为敏感的,垂荡板与立柱的直径比存在一定的最佳范围。平台立柱间距是影响平台运动性能最大的因素,增大立柱间距可以有效地降低叶轮中心水平加速度,但立柱间距的增大对立柱间的撑杆结构强度以及平台整体的建造和下水提出了较大的挑战。
The Pareto⁃Optimal evaluation is carried out for the preliminary design of semisubmersible floating wind turbine platform,with the variation of the parameters of platform draft,column diameter,column distance and heave plate diameter.Based on the frequency domain method with the extreme wave condition for a wind farm located in Yangjiang sea area,the horizontal acceleration at the rotor center is computed.The computational results are compared among the platform designs with the variant parameter combinations,and comparison reveals that the platform draft and the column diameter are suggested to have the moderate values,and a larger platform displacement or column volume will not produce a more mitigated horizontal acceleration at the rotor center.The heave plate could significantly affect the platform performance,and there exists an optimized range for the ratio of heave plate diameter to column diameter.The distance between columns is vital to the platform dynamic performance.Increasing the distance will lead a smaller horizontal acceleration at the rotor center.However,the increased distance between columns will challenge the structural design of the bracing structures and the platform construction and loadout.
作者
杜宇
王凯
高子予
DU Yu;WANG Kai;GAO Ziyu(CCCC Third Harbor Engineering Co.,Ltd.,Shanghai 200032,China;School of Marine Engineering and Technology,Sun Yat-Sen University,Zhuhai 519082,China;Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai),Zhuhai 519082,China)
出处
《海洋工程》
CSCD
北大核心
2022年第4期121-128,共8页
The Ocean Engineering
基金
中国交通建设集团2020年重大科技研发项目《漂浮式风电基础结构与施工技术研究》(2020⁃ZJKJ⁃06)
广东省自然科学基金面上项目(2021A1515011771)
南方海洋科学与工程广东省实验室(珠海)创新团队建设项目(311021013)。
