为研究深远海环境下新型浮式风力机基础在湍流风场中的动态响应情况,基于OpenFAST软件,开展不同湍流度下新型浮式风力机基础的动力响应分析,并与OC4-DeepCwind浮式基础进行对比。通过耦合多物理场模型,结合TurbSim生成的湍流风谱,模拟浮式基础在风速11.4 m/s和不规则波工况下的时域运动响应。结果表明：1）不同强度的湍流风对浮式风力机运动具有显著影响;2）新型浮式基础在纵荡和垂荡方向的运动响应显著优于传统模型,其中10%湍流度工况下纵荡响应幅值降低24.6%,垂荡最大瞬时幅值减少0.064 m;3）新型浮式基础的运动响应随湍流度增加呈线性增长,纵荡最大幅值为5.60~6.74 m,垂荡幅值（0.178~0.190 m）及纵摇幅值（0.48°~1.10°）均满足规范限值;4）系泊系统在湍流度20%工况下最大锚链张力为1.475 MN（安全系数4.13）,安全系数满足规范要求。
Abstract
This study investigates the dynamic response of a novel floating wind turbine foundation in a turbulent wind field under deep-sea conditions. Based on OpenFAST software, dynamic response analyses of the floating foundation under different turbulence intensities are conducted, and the results are compared with the traditional OC4-DeepCwind floating foundation. By coupling a multiphysics model and using the turbulent wind spectrum generated by TurbSim, the time-domain motion response of the floating foundation under wind speed of 11.4 m/s and irregular wave conditions is simulated. The results show that： 1） The turbulence intensity significantly affects the motion of the floating wind turbine; 2） The new floating foundation outperforms the traditional model in terms of motion response in surge and heave directions, with a 24.6% reduction in surge amplitude and a 0.064 m decrease in maximum instantaneous heave at 10% turbulence intensity; 3） The motion response of the new floating foundation increases linearly with turbulence intensity, with the surge maximum amplitude ranging from 5.60 m to 6.74 m, the heave amplitude ranging from 0.178 m to 0.190 m, and the pitch amplitude ranging from 0.48° to 1.10°, all meeting the design limits; 4） The maximum mooring line tension of the mooring system under the 20% turbulence intensity condition is 1.475 MN （safety factor： 4.13）, and the safety factor meets the requirements of general specifications.
关键词
海上风电 /
漂浮式风力机 /
动力响应 /
数值分析 /
浮式基础 /
湍流风
Key words
offshore wind power /
offshore floating wind turbines /
dynamic response /
numerical analysis /
floating foundation /
turbulent wind
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
参考文献
[1] 赵志新, 施伟, 王文华, 等. 二阶波浪力下超大型半潜浮式风力机动态响应分析[J]. 太阳能学报, 2023, 44(1): 335-345.
Zhao Z X, Shi W, Wang W H, et al.Dynamic response analysis of an ultra-large semi-submersible floating wind turbine under second-order wave forces[J]. Acta Energiae Solaris Sinica, 2023, 44(1): 335-345.
[2] Jonkman J M.Dynamics modeling and loads analysis of an offshore floating wind turbine: NREL/TP-500-41958[R]. Golden, Colorado: National Renewable Energy Laboratory, 2007
[3] 施伟, 薛瑞宁, 侯晓彬, 等. 10 MW级半潜漂浮式风机的动力响应[J]. 船舶工程, 2021, 43(10): 1-9, 43.
Shi W, Xue R N, Hou X B, et al.Dynamic response on 10 MW semisubmersible floating offshore wind turbine[J]. Ship Engineering, 2021, 43(10): 1-9, 43.
[4] Wang B, Li Y, Gao S, et al.Motion characteristics and aero-elastic responses of floating offshore wind turbine under coupling action of waves and winds[J]. Frontiers in Environmental Science, 2022, 10: 965334.
[5] Shen Y, Liu J, Yan X C, et al.A novel 10 MW floating wind turbine platform: SparFloat: conceptual design and dynamic response analysis[J]. Journal of Marine Science and Engineering, 2024, 12(12): 2278.
[6] 张立栋, 石强, 姜铁骝, 等. 不同强度湍流风对风力机气动载荷的影响[J]. 分布式能源, 2023, 8(5): 61-68.
Zhang L D, Shi Q, Jiang T L, et al.Influence of turbulent wind of different intensity on aerodynamic load of wind turbine[J]. Distributed Energy, 2023, 8(5): 61-68.
[7] Li L, Liu Y C, Yuan Z M, et al.Dynamic and structural performances of offshore floating wind turbines in turbulent wind flow[J]. Ocean Engineering, 2019, 179: 92-103.
[8] 丁红岩, 韩彦青, 张浦阳, 等. 全潜式浮式风机基础在不同风况下的动力特性研究[J]. 振动与冲击, 2017, 36(6): 201-206, 228.
Ding H Y, Han Y Q, Zhang P Y, et al.Dynamic analysis of the submersible foundation for floating wind turbine in different wind conditions[J]. Journal of Vibration and Shock, 2017, 36(6): 201-206, 228.
[9] 陈宇, 祝磊, 吴松熊. 新型漂浮式海上风电基础概念设计和初步动力响应分析[J]. 太阳能学报, 2024, 45(8): 581-586.
Chen Y, Zhu L, Wu S X.Conceptual design and preliminary dynamic response analysis of novel floating offshore wind turbine foundation[J]. Acta Energiae Solaris Sinica, 2024, 45(8): 581-586.
[10] 梁志, 胡非, 师宇, 等. 塔影效应对平均风速和湍流强度影响的外场试验研究[J]. 实验流体力学, 2024, 38(2): 88-97.
Liang Z, Hu F, Shi Y, et al.Research of mast shadow effect on the average wind speed and turbulence intensity by field experiment[J]. Journal of Experiments in Fluid Mechanics, 2024, 38(2): 88-97.
[11] 王亚坡. 基于半潜浮式平台的风-浪能集成系统研究[D]. 大连: 大连理工大学, 2021.
Wang Y P.Research on the wind-wave energy integrated system based on semi-submersible floating platform[D]. Dalian: Dalian University of Technology, 2021.
[12] Jonkman J, Butterfield S, Musial W, et al.Definition of a 5-MW reference wind turbine for offshore system development: NREL/TP-500-38060[R]. Golden, Colorado, United States: National Renewable Energy Laboratory (NREL), 2009.
[13] IEC 61400-3 An international design standard for offshore wind turbines[S].
[14] 张幸雨. 10 MW新型浮式风机水动力性能研究[D]. 哈尔滨: 哈尔滨工程大学, 2023.
Zhang X Y.Study on hydrodynamic performance of 10 MW new floating fan[D]. Harbin: Harbin Engineering University, 2023.
[15] 中国船级社. 海上浮式风机平台指南[M]. 北京: 中国船级社, 2021.
China Classification Society.Guidelines for offshore floating wind turbine platforms[M]. Beijing: China Classification Society, 2021.
[16] 中国船级社. 海上单点系泊装置入级规范[M]. 北京: 中国船级社, 2021.
China Classification Society.Classification specification for offshore floating devices[M]. Beijing: China Classification Society, 2021.
PDF(3837 KB)
