| 畸形波作用下半潜浮式风机系泊失效停机响应分析 |
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| 引用本文： | 程劲凯,徐普,陈宝春,赖福梁,宋启明.畸形波作用下半潜浮式风机系泊失效停机响应分析[J].海洋工程,2022,40(4):102-111. |
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| 作者姓名： | 程劲凯 徐普 陈宝春 赖福梁 宋启明 |
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| 作者单位： | 福州大学 土木工程学院, 福建 福州 350116;中国电建集团福建省电力勘测设计院有限公司, 福建 福州 350003;福建永福电力设计股份有限公司, 福建 福州 350108 |
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| 基金项目： | 国家自然科学基金资助项目(51809048);福建省自然科学基金资助项目(2018J05081,2022J01092);福州大学贵重仪器设备开放测试基金资助项目(2021T035) |
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| 摘 要： | 半潜浮式风机逐渐在深海风电开发中受到关注，建立风机、平台与系泊结构耦合数值计算模型，通过FAST与AQWA链接进行风机塔基荷载及平台运动响应相互耦合传递，基于随机波与极限波组合模型生成畸形波时程序列，进行半潜浮式风机系泊失效全过程时域模拟计算分析，得出系泊锚链张力、风机、塔筒和平台运动时程响应，探究系泊失效、风机停机和叶片变桨速率对浮式风机平台系泊结构动力响应的影响。结果表明：畸形波作用下浮式平台和系泊结构动力响应显著，系泊失效导致塔基剪力增加，平台纵荡和纵摇运动响应显著增大；风机停机会引起系泊锚链张力显著减小，转子推力、塔基剪力和叶尖挥舞位移响应逐渐衰减，平台纵荡、纵摇和横摇运动响应显著减小；随着叶片变桨速率增加，风机转子推力和塔基剪力波动幅值增大。
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| 关 键 词： | 半潜浮式风机 畸形波 系泊失效 风机停机 动力响应 |
| 收稿时间： | 2021/9/13 0:00:00 |
Mooring failure and wind turbine shutdown response analysis of semi-submersible floating wind turbine under freak waves |
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| CHENG Jinkai,XU Pu,CHEN Baochun,LAI Fuliang,SONG Qiming.Mooring failure and wind turbine shutdown response analysis of semi-submersible floating wind turbine under freak waves[J].Ocean Engineering,2022,40(4):102-111. |
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| Authors: | CHENG Jinkai XU Pu CHEN Baochun LAI Fuliang SONG Qiming |
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| Institution: | College of Civil Engineering, Fuzhou University, Fuzhou 350116, China;PowerChina Fujian Electric Power Engineering Co., Ltd., Fuzhou 350003, China;Fujian Yongfu Power Engineering Co., Ltd., Fuzhou 350108, China |
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| Abstract: | The semi-submersible floating wind turbine (FWT) is attracting more and more attention in the exploitation of deep-sea wind power. In this research, the coupling numerical calculation model of the wind turbine, platform, and mooring structure is established. The mutual coupling transmission of wind turbine base loads and platform motion responses are carried out by the link of FAST and AQWA. The time history sequences of freak waves are generated on the basis of the combined model of random waves and extreme waves. The mooring failure process of semi-submersible FWT is simulated in the global time domain, and the time history responses of mooring tension, wind turbine, tower, and platform motion are obtained. The influences of mooring failure, wind turbine shutdown, and blade pitch rate on dynamic responses of floating wind turbine, platform, and mooring structure are explored. The results show that dynamic responses of the floating platform and mooring structure are remarkable under freak waves. The mooring failure leads to the increase of tower foundation shear force as well as platform surge and pitch motion responses. The wind turbine shutdown could cause a great reduction of mooring chain tension, rotor thrust, tower base shear, blade-tip deflection, and platform heave, pitch, and roll movement responses. The fluctuation ranges of wind turbine rotor thrust and tower base shear augment increase with the increase of blade pitch rate. |
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| Keywords: | semi-submersible floating wind turbine freak wave mooring failure wind turbine shutdown dynamic response |
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