为保证浮式风力机在复杂海洋环境中的稳定性,在浮体设计时需着重考虑其运动响应特性。以X1 wind公司的X30浮式风力机浮体为研究对象,运用模型试验与数值分析相结合的方法开展该浮式风力机浮体系统水动力特性研究。首先,运用时域全耦合分析方法,通过模型试验完成浮式风力机浮体水动力特性分析,根据其运动响应（特别是垂荡响应）偏大的问题,在风力机浮式基础的立柱结构底部下,增设4种不同的垂荡板结构。通过运用模型试验方法,重点研究不同垂荡结构作用下的运动响应控制效果,同时研究不同垂荡结构下风力机浮体的固有周期、实测阻尼、运动响应的不同波高特性和周期敏感性。其次,采用模型试验修正后的数值分析,对不同垂荡结构处承受的波浪载荷进行研究,获得垂荡结构波浪载荷特性。基于优选出的垂荡结构,研究畸形波作用下的垂荡运动控制效果。
Abstract
In order to ensure the stability of the floating wind turbines in the complex marine environments, the motion response characteristics should be considered during floating body in the design. In this paper, the X30 floating wind turbine floating body of X1 wind company is taken as the research object, and the hydrodynamic characteristics of the floating wind turbine floating body system are studied by combining model tests with numerical analysis. Firstly, a time-domain fully coupled analysis method is used to analyze the hydrodynamic characteristics of the floating body of the floating wind turbine through the model test. To address the issue of excessive motion response （especially the heave response） is too large, four different heave plate structures are added under the bottom of the column structure of the floating foundation of the wind turbine. Using the model tests, the control effect of motion response under different heave structures is primarily investigated. At the same time, the natural period, measured damping, different wave height characteristics and period sensitivity of motion response of floating body under different heave plate structures are studied. Secondly, the wave loads on different heave plate structures are analyzed by numerical analysis after model test corrections, and the wave load characteristics of heave structures are obtained. Based on the optimized heave plate structure, the heave motion control effect under the action of freak waves conditions is studied.
关键词
浮式风力机 /
运动控制 /
数值分析 /
模型实验 /
水动力特性 /
畸形波
Key words
wind turbines /
motion control /
numerical analysis /
model test /
hydrodynamic characteristics /
freak wave
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基金
国家自然科学基金（57071161）; 国家杰出青年基金（52025112）
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