近地层风能参数随高度分布的推算方法研究

Research on Algorithm of Wind Energy Parameters in Surface Layer with Height

应用江苏和吉林的12个测风塔资料,对两个地区的风能参数进行了统计和分析,探讨了一种用10m高度风速资料推算近地层内任意高度上平均风功率密度的新方法。结果表明:应用该方法交互拟合不同高度的平均风功率密度,平均误差4.4%,最大误差13.3%,优于指数律的平均误差7.8%,最大误差22.0%,效果较为理想。

Based on the meteorological tower data obtained from Jiangsu and Jilin in 2005 - 2006,the characteristics of average wind profile are analyzed, and a new method tor estimating mean wind energy density in different height is investigated. The results show that the average relative error of this method is 4.4%, while the largest relative error is 13.3%, so this method for estimating the variation of wind energy with height is usable.