二参数Weibull分布函数对近地层风速的拟合及应用

该文用二参数Weibull分布函数对武汉地区3年近地层5～146 m塔层6个层次的风速进行拟合，主要分析了分布函数中形状参数和尺度参数的获取方法。通过与实际值的对比，表明经验法优于最小二乘法。运用此方法，对近地层风能进行估算，其结果与常规方法的最大相对误差为2.7%，最小仅为0.1%。并在最后讨论了风能和垂直分布规律。

Fitting to Wind Velocity of Surface Layer Using Two-parameter Weibull Distribution Function and Its Application

By fitting to surface wind velocity at 5-146 m tower height, divided into six layers for three years in Wuhan, several methods for obtaining shape and scale parameters of the distribution function are analyzed with two parameter Weibull distribution function. In comparison with the observational data,it is shown that the empirical method is better than the least square method. Using the empirical method to estimate the wind energy of surface layer, the maximum relative erros is 2 7% and the minimum one is only 0 1% in comparison with the conventional method. At last,the vertical distribution law of wind energy is discussed.