[关键词]
[摘要]
随着水深增加,漂浮式风力机的系泊系统与锚点成本不断上升,共享系泊逐渐成为研究热点。为提高共享系泊的漂浮式风电场平台的稳定性,基于5 MW Barge平台风力机组建的2×2阵列式风电场,提出一种带有浮子与配重的新型混合共享系泊系统。利用辐射/绕射理论与有限元方法,计算并对比常规系泊与混合系泊在平台动态响应、系泊张力及躺地段的差异,分析了混合系泊浮子与配重的间距影响。结果表明:较之常规系泊,混合系泊可降低平台纵荡与横荡动态响应幅值,减小系泊张力变化,并延长躺地段长度;随浮子与配重间距的增大,躺地段长度总体呈现增大趋势,且改变平台横荡的平衡位置。
[Key word]
[Abstract]
With the depth of water increasing, the cost of mooring systems and anchor points for floating wind turbines is continually rising, and shared moorings are gradually becoming a research top spot. In order to improve the stability of the floating wind farm platform with shared moorings, a new hybrid shared mooring system with buoys and counterweights is proposed based on a 2×2 array wind farm formed by 5 MW Barge platform wind turbines. Based on the radiation/diffraction theory and the finite element method, the differences between the conventional mooring and the hybrid mooring in terms of platform dynamic response, mooring tension and laid length are calculated and compared, and the influence of the distance between the buoys and counterweights of the hybrid mooring is analyzed. The results show that compared with the conventional mooring, the hybrid mooring can reduce the amplitude of the surge and sway dynamic response of the platform, reduce the change of mooring tension, and extend the length of the laid length. With the increase of the distance between the buoys and counterweights, the laid length tends to increase and the equilibrium position of sway is also changed.
[中图分类号]
TK83
[基金项目]
国家自然科学基金项目(面上项目,重点项目,重大项目)