为深入探究极端海况和施工误差下浮式风机系泊系统的动力特性，基于OrcaFlex数值模拟软件，建立了15 MW半潜式风机系泊平台耦合模型。计算了极端海况及施工误差因素对系泊系统动力响应的影响，包括平台稳性、位移幅值和系泊缆张力变化等关键参数。同时，针对停机后可能出现的断锚这一危险工况进行模拟分析，获取在断锚状态下系泊系统的受力分布和平台的运动响应情况。结果表明：极端海况断锚后3×1系泊布置形式纵摇变化较大且失去在位能力，3×2、3×3形式较为稳定，能保证浮式风机在位，且锚链安全系数符合规范要求。施工误差情况下风机横摇、纵摇和垂荡较为稳定，锚链安全系数符合规范要求，但纵荡极大，施工时应尽量避免系泊角度误差。
In order to deeply explore the dynamic characteristics of the floating wind turbine mooring system under extreme sea conditions and construction errors, a coupled model of a 15 MW semi-submersible wind turbine mooring platform was established based on the OrcaFlex numerical simulation software. The influence of extreme sea conditions and construction errors on the dynamic response of the mooring system was calculated, including key parameters such as platform stability, displacement amplitude, and mooring cable tension changes. At the same time, a simulation analysis was conducted for the dangerous condition of anchor breaking after shutdown, and the force distribution of the mooring system and the motion response of the platform under the anchor breaking state were obtained. The results show that after anchor breaking in extreme sea conditions, the 3×1 mooring arrangement has a large pitch change and loses its ability to stay in place. The 3×2 and 3×3 arrangements are relatively stable and can ensure that the floating wind turbine is in place, and the anchor chain safety factor meets the requirements of the specification. Under the condition of construction error, the roll, pitch and heave of the wind turbine are relatively stable, and the anchor chain safety factor meets the requirements of the specification, but the surge is extremely large, and the mooring angle error should be avoided as much as possible during construction.
2025,47(17): 117-123 收稿日期：2025-2-17
DOI：10.3404/j.issn.1672-7649.2025.17.019
分类号：U611.32
作者简介：邹大伟(1984-),男,高级工程师,研究方向为核能及海上风电项目的项目管理
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