综合考虑风电机组平台海上安装要求和在位工况环境载荷,根据浮体静稳性和动力学理论,提出一种全潜式的张力腿平台基础结构方案,平台上部布置10 MW风电机组,采用12根钢缆作为筋腱系统主体。建立风电机组-浮式平台-筋腱系统全耦合的一体化分析模型,对该张力腿平台方案在中国南海地区环境条件下的工况进行时域数值分析评估,结果表明该方案的张力腿平台俯仰运动性能优异,在50年一遇的设计环境条件下最大运动倾角不超过1°,采用钢缆的筋腱系统其强度和疲劳寿命安全系数满足规范校核要求。
Abstract
Considering the offshore installation requirements and the environmental loads of the in-situ operation conditions of the wind turbine platform, a fully submerged Tension Leg Platform structural concept is proposed based on the theory of hydrostatic stability and hydrodynamics of the floating body, with an IEA 10 MW wind turbine arranged on the upper part of the platform, and 4×3 wireropes of 130 mm spiral stand rope as the main body of the tendon system. Then a fully coupled integrated analysis model of the wind turbine-platform-tendon system is established, and the time domain numerical analysis is carried out to evaluate the global performance of the tension leg platform concept under the environmental conditions in the South China Sea area. The results show that the tension leg platform has excellent motion performance, with the maximum inclination angle not exceeding 1° under the 50-year return period design environmental conditions. The tendon system using wire ropes meets the strength and fatigue life safety factor requirements specified in the design code.
关键词
浮式风电 /
张力腿平台 /
10 MW风电机组 /
全潜式结构 /
钢缆筋腱 /
全耦合分析
Key words
floating wind power /
tension leg platform /
10 MW wind turbine /
fully submerged structure /
wire rope tendon /
integrated analysis
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参考文献
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基金
国家能源集团科技创新项目（E669000040）
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