大型半潜式海上风力机平台系泊稳定性优化
Optimization of mooring stability for large semi-submersible offshore wind turbine platforms
胡丹梅 1郑重 1林泽宁 1赵振江 1陈乃超1
作者信息
- 1. 上海电力大学能源与机械工程学院,上海 200090;上海非碳基能源转换与利用研究院,上海 200240;教育部海上风电技术工程研究中心(上海电力大学),上海 200090
- 折叠
摘要
平台的稳定性是漂浮式海上风力机安全运行的基本保障.本文研究了某15MW半潜式海上风力机平台运动响应,通过在系泊缆上添加压载块,并调整压载块质量与距导缆孔的距离以优化系泊系统,实现提高平台的稳定性.利用AN-SYS-AQWA软件和ANSYS-Workbench得到了其运动响应及响应面,响应面分析结果表明:压载块质量与平行于风浪流的系泊缆上压载块距导缆孔距离所产生的运动响应关系曲线趋势一致,其数值增大能有效抑制纵荡和垂荡,但会增加纵摇.最后利用响应面优化了系泊系统,在保证系泊安全的情况下,使平台纵荡幅值减小了52.6%,垂荡幅值减小了12.73%,纵摇幅值减小了6.67%.
Abstract
The stability of the platform is the fundamental guarantee for the safe operation of floating offshore wind turbines.In this paper,the motion response of a 15MW semi-submersible offshore wind turbine platform is investigated,and the stability of the platform is improved by adding a ballast block on mooring cable and adjusting the weight of the ballast block and the distance between the ballast block and the guide hole to optimize the mooring system.The motion response and response surface are obtained by using software ANSYS-AQWA and ANSYS-Workbench.Result from the response surface analysis shows that the motion response curves generated by the mass of ballast block and the distance between the ballast block and the guide hole on the mooring cable parallel to tidy current have the same trend,and the increase of its value can effectively suppress longitudinal and drooping oscillations,but increase the longitudinal rocking.Finally,the response surface was used to optimize the mooring system,in which the amplitude of longitudinal oscillation of platform was reduced by 52.6%,the amplitude of pitching oscillation was reduced by 12.73%,and the amplitude of longitudinal rocking was reduced by 6.67%under the safty guaranteeing of mooring.
关键词
漂浮式风力机/系泊系统/动态响应/数值仿真Key words
floating wind turbine/mooring system/dynamic response/numerical simulation引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据