Chinese Journal of Ship Research, Volume. 19, Issue 4, 71(2024)
Design and hydrodynamic performance of 15 MW Spar-type floating offshore wind turbine platform
Figures & Tables(24)
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Table 1. Main information of the Spar floating platform
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参数 数值 排水量/t 14 680 吃水/m 90 重心高（距水面）/m −52.0 浮心高（距水面）/m −35.3 稳性高/m 16.73 惯性矩Ixx /(kg∙m2) $7.500 \times {10^{10}}$ 惯性矩Iyy(kg·m2) $7.500 \times {10^{10}}$ 惯性矩Izz(kg·m2) $9.605 \times {10^8}$
Table 2. Weight estimation table
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名称 重量/t 注：固定压载舱的铸铁铁砂密度为5 t/m3。 浮体（船用钢） 2 000 固定压载舱（铁砂） 10 768 叶片（每个叶片65 t） 195 机舱 1 017 塔架 700 合计 14 680
Table 3. Parameters of the wind turbine
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参数 数值 叶片数量 3 风机功率/MW 15 叶片长度/m 117 风轮直径/m 240 轮毂中心高度（距水面）/m 152 切入风速/(m∙s−1) 3 额定风速/(m∙s−1) 10.59 切出风速/(m∙s−1) 25 额定叶尖速比 9
Table 4. Mooring system parameters
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参数 数值 系泊系统类型 悬链线式 系泊线数量 9 锚链直径/m 0.08 锚链长度/m 905 锚链单位长度湿密度/(kg∙m−1) 127 锚链轴向刚度/MN 546.6 锚链破断力/kN 7315 系泊预张力/kN 796.0
Table 5. Resonance period of Spar floating platform motion
View tableView in ArticleTable 5. Resonance period of Spar floating platform motion
类型 共振频率/(rad∙s−1) 固有周期/s 垂荡 0.210 29.9 横摇 0.171 36.8 纵摇 0.171 36.8
Table 6. Mesh numbers and calculation time of different mesh sizes
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网格尺寸/m 网格数量 计算时间/s 1.0 5 331 358.22 1.5 2 649 122.83 2.0 1 556 66.06
Table 7. Extreme value of platform motion response
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运动自由度 运动最大有义值 运动响应极值 纵荡/m 2.953 5.492 横荡/m 2.953 5.492 垂荡/m 1.461 2.414 横摇/(º) 1.087 1.312 纵摇/(º) 1.087 1.312 艏摇/(º) 0 0
Table 8. Working condition parameters
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参数 工 况 Case 1 Case 2 风速（10 min平均风速） /(m∙s−1) 10.59 （轮毂高度处） 39.20 （海面上10 m高程处） 有效波高/m 2.0 13.1 谱峰周期/s 7.1 14.2 流速/(m∙s−1) 0.8 1.89 风机状态 工作 自存
Table 9. Time domain motion response statistics of the platform
View tableView in ArticleTable 9. Time domain motion response statistics of the platform
统计值 纵荡运动响应值/m 垂荡运动响应值/m 纵摇运动响应值/(°) Case 1 Case 2 Case 1 Case 2 Case 1 Case 2 最大值 18.62 39.25 0.0037 2.98 7.94 5.89 最小值 10.53 23.84 −0.43 −3.21 3.92 0.96 平均值 14.33 29.64 −0.22 −0.65 5.81 3.22
Table 10. Extreme values of platform motion response under annual average wind speed in the target sea area
View tableView in ArticleTable 10. Extreme values of platform motion response under annual average wind speed in the target sea area
参数 数值 纵荡运动响应值/m 13.42 垂荡运动响应值/m 0.208 纵摇运动响应值/(°) 4.108
Table 11. Mooring cable force under working conditions
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系泊缆编号 缆绳最大张力/kN 安全系数 Line 1 1 371 5.33 Line 2 1 266 5.77 Line 3 1 174 6.23 Line 4 567.8 12.88 Line 5 566.5 12.91 Line 6 567.8 12.88 Line 7 1 174 6.23 Line 8 1 266 5.77 Line 9 1 371 5.33
Table 12. Mooring cable force under extreme conditions
View tableView in ArticleTable 12. Mooring cable force under extreme conditions
系泊缆编号 缆绳最大张力/kN 安全系数 Line 1 2 821 2.59 Line 2 2 321 3.15 Line 3 1 917 3.81 Line 4 438.5 16.68 Line 5 437.5 16.72 Line 6 438.5 16.68 Line 7 1 917 3.81 Line 8 2 321 3.15 Line 9 2 821 2.59
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Lin LIN, Mingyang CHEN, Peng YANG, Panpan SHEN, Qingbin ZHU, Kai ZHANG. Design and hydrodynamic performance of 15 MW Spar-type floating offshore wind turbine platform[J]. Chinese Journal of Ship Research, 2024, 19(4): 71
Paper Information
Category: Technology and Equipment for Development and Utilization of Marine New Energy
Received: Aug. 29, 2023
Accepted: --
Published Online: Mar. 14, 2025
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