摘要
本文利用四川省凉山州会东县、美姑县以及盐源县三个典型区域内测风塔数据,通过CFD技术对典型区域进行风能资源微尺度模拟,并进行详细风资源分析以及风机排布最优间距分析。结果表明:区域内年平均风速大值区基本位于山脊;山区环境湍流大于平地,湍流高值区出现在地形变化复杂地带;风切变的极大值区一般位于山坡处。其中,美姑地区山脊100 m高度年平均风速在7 m/s以上,湍流值位于0.09~0.34之间,山脊处的平均风切变指数为0.19;盐源地区山脊100 m高度年平均风速在5 m/s以上,平均湍流值位于0.13~0.45之间,山脊处平均风切变指数为0.14;会东地区100 m高度年平均风速在8 m/s以上,平均湍流值位于0.11~0.38之间,山脊处平均风切变指数为0.21。通过综合考虑主风向上下游风机间尾流效应以及工程量,以度电成本为最优,得出凉山州会东县某区域的风力发电机组最优间距为5.7D(D为风轮直径)。
Based on the data of wind mast in three typical regions of Huidong County,Meigu County and Yanyuan County,Liangshan Prefecture,Sichuan Province,this paper uses CFD technology to conduct micro-scale simulation of wind energy resources in typical regions,and conducts detailed wind resource analysis and optimal wind turbine arrangement spacing analysis.The results show that the maximum value area of annual mean wind speed in the region is basically located in the ridge;The environmental turbulence in mountain area is greater than that in flat area,and the high turbulence value area appears in the terrain with complex changes.The maximum value area of wind shear is generally located on the hillside.In Meigu area,the average annual wind speed of mountain ridge at the height of 100m is over 7m/s,the turbulence value is between 0.09 and 0.34,and the average wind shear index at the mountain ridge is 0.19.In Yanyuan area,the average annual wind speed of mountain ridge at the height of 100m is above 5m/s,the average turbulence value is between 0.13 and 0.45,and the average wind shear index at the mountain ridge is 0.14.The average annual wind speed at the height of 100m in Huidong area is over 8m/s,the average turbulence value is between 0.11-0.38,and the average wind shear index at the mountain ridge is 0.21.Based on the comprehensive consideration of the wake effect between the upstream and downstream wind turbines of the main wind direction and the amount of engineering,the optimal distance of wind turbines in Huidong County of Liangshan Prefecture is 5.7D(D is the diameter of the wheel of wind turbine).
作者
叶瑶
袁熹
YE Yao;YUAN Xi(Sichuan Meteorological Service Center,610072,Chengdu,China;Dongfang Electric Engineering&Consulting Co.,Ltd.,611731,Chengdu,China)
出处
《东方电气评论》
2024年第5期28-33,共6页
Dongfang Electric Review
基金
四川省气象局-青年专项(SCQXKJQN202219)
气象服务创新发展专项(FWCX202301)。
关键词
CFD模拟
凉山州
风资源
风机排布
CFD simulation
liangshan prefecture
wind resources
wind turbine arrangement
