华中科技大学学报（自然科学版）2024，Vol.52Issue(7)：106-112,7.DOI:10.13245/j.hust.240742
极端天气对风电场局地风环境的影响
Impact of extreme weather on local wind environment of wind farm
摘要
Abstract
Numerical simulations were conducted based on mesoscale numerical models and wind farm parameterized models,taking 24 megawatt wind turbines in a wind farm on the southeast coast as an example.The temporal evolution characteristics and spatial distribution characteristics of local wind speed,wind direction,wind power density,turbulent kinetic energy and other characteristic quantities of the wind farm under typhoon weather were analysed.The results show that the average error between the numerical simulation results and the observation results is within 1 m/s.When the wind farm is not affected by the typhoon,the speed loss is largest at the hub height,and the vertical wake influence range is about 3 times the hub height.When affected by the typhoon,the wake of the wind farm is forced by the typhoon dynamics to exhibit a wake deflection effect,and the maximum deflection angle of the wake can reach 33°.Wind farm wakes can increase turbulent kinetic energy levels in the surrounding area.The influence area in the horizontal direction lasts to 4 to 8 times the diameter of the wind farm downstream,and the influence area in the vertical direction reaches 3.5 times the hub height.The turbulent kinetic energy distribution far downstream of the wind farm is modulated by the coupling effect of the underlying surface,wind farm wake and extreme wind conditions,and then presents a typical large-scale vortex flow structure.关键词
极端天气/大气环境/风电场/风资源/中尺度模式Key words
extreme weather/atmospheric environment/wind farm/wind resources/mesoscale model分类
信息技术与安全科学引用本文复制引用
郜志腾,张军,李岳,李晔..极端天气对风电场局地风环境的影响[J].华中科技大学学报（自然科学版）,2024,52(7):106-112,7.基金项目
国家装备发展部科研项目(2023-XT3S-JSFW-50003) （2023-XT3S-JSFW-50003）
国家自然科学基金资助项目(12302301) （12302301）
中国博士后科学基金资助项目(2023M742229). （2023M742229）
