极端海况下附配重系泊漂浮式风力机响应分析

doi:10.19912/j.0254-0096.tynxb.2021-0280

摘要/Abstract

摘要： 为提高风波作用下平台稳定性并降低系泊拔锚风险,提出对Barge平台系泊添加配重的新型系泊系统。基于辐射/绕射理论和有限元方法,对比系泊添加配重前后Barge平台动态响应、系泊受力及躺地长度变化,并研究配重位置的影响。结果表明：在保证系泊安全的前提下,添加配重可有效降低平台纵荡、垂荡及纵摇响应并增加系泊躺地长度;当配重距锚点约160 m时,平台纵荡响应最小且躺地长度最大,纵荡、垂荡及纵摇响应幅值分别减小41.9%、20.4%及11.8%。此外,1~4号系泊躺地长度为未加配重时的12.9、2.0、1.9及0.9倍,张力略有增大,但仍在安全范围内;1号系泊（迎风浪侧）躺地长度最小,拔锚风险最高,4号系泊（背风浪侧）添加配重后其躺地长度缩短,拔锚风险增加。

关键词: 海上风电, 漂浮式风力机, 动态响应, 系泊, Barge平台, 配重

Abstract: In order to improve the platform stability and reduce the risk of anchor lifting, the method of adding counterweight on mooring system is proposed. Based on radiation/diffraction theory and finite element method, the dynamic response of Barge platform, the mooring force and variation of the lying length before and after adding counterweight are compared, and the influence of counterweight position is studied. The results show that, on the premise of ensuring mooring safety, adding counterweight can effectively reduce the platform’s surge, heave and pitch response while the lying length of mooring is increased. When the counterweight is about 160 meters away from the anchor point, the dynamic response of the platform is smallest while the lying length is largest, and the dynamic response amplitude of surge, heave and pitch response are decreased by 41.9%, 20.4% and 11.8% respectively. In addition, the lying length of No.1-No.4 moorings are 12.9, 2.0, 1.9 and 0.9 times of that without counter weight, the tension increases slightly, but still within the safe range. No.1 mooring’s lying length （windward side） is the smallest while the risk of anchor lifting is the highest. No.4 mooring （backwind wave side） shortens the lying length and increases the risk of anchor lifting after adding counterweight.

Key words: offshore wind power, floating wind turbines, dynamic response, mooring, barge platform, counterweight

中图分类号:

TK83

李蜀军, 刘青松, 李春, 闫阳天. 极端海况下附配重系泊漂浮式风力机响应分析[J]. 太阳能学报, 2022, 43(12): 415-422.

Li Shujun, Liu Qingsong, Li Chun, Yan Yangtian. RESPONSE ANALYSIS OF FLOATING WIND TURBINE WITHCOUNTERWEIGHT MOORING UNDER EXTREME SEA CONDITIONS[J]. Acta Energiae Solaris Sinica, 2022, 43(12): 415-422.

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