半潜式平台漂浮式风力机阵列平台普通海况动态响应研究

Research on Dynamic Response of Semi-submersible Floating WindTurbine Array Platform in Normal Sea State

为保证漂浮式风电场在环境载荷复杂的海洋环境中稳定正常工作,以半潜式平台为研究对象,建立了基于Umarine Semi-Submersible平台的阵列式风电场。通过FORTRAN程序语言求解气动载荷,采用水动力学软件AQWA,基于辐射/绕射理论并结合有限元方法,研究了风波耦合作用下半潜式平台时频动态响应。结果表明:阵列半潜式平台漂浮式风电场可有效提升平台抗首摇、横摇能力;固定悬链线可降低平台横荡运动幅值与纵荡响应;共用系泊系统的阵列平台机舱振动稳定性更佳。

In the marine environment,the environmental load is complex and unstable.In order to ensure the stable and normal operation of the floating wind farm,this paper took the semi-submersible platform as the research object,and established an array wind farm based on the Umarine semi-submersible platform.Based on the radiation/diffraction theories and the finite element method,the time-frequency dynamic response of the semi-submersible platform under the coupling effect of wind wave was studied by solving the aerodynamic load with FORTRAN programming language and using the hydrodynamic software AQWA.The results show that the floating wind farm with array semi-submersible platform can improve the yawing and rolling resistant capacities of platform effectively;fastening the catenary can reduce the swaying motion amplitude and surging response of platform;the array platform with shared mooring system has better vibration stability of engine room.