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Availability evaluation of wind farms considering the influence of vertical wind shear

机译:考虑垂直风切变影响的风电场可用性评估

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The probability distribution of wind speed and availability of wind farms are investigated considering the vertical wind shear. Wind speed at extended height (60 m) was generated from that of reference height (10 m) through the Power-law Process. The least square (LS) method, maximum likelihood estimation (MLE) method and modified method are used to estimate the parameters of Weibull distribution. Then the goodness-of-fit and wind energy characteristic indices are deduced. It shows that MLE and modified MLE method are superior to LS method in parameter-estimating, and wind speed distribution at different height changes with wind shear. The rationality and effectiveness of the modified method are verified from the case study.
机译:考虑了垂直风切变,研究了风速和风电场可用性的概率分布。通过幂律过程从参考高度(10 m)的速度生成了扩展高度(60 m)的风速。最小二乘(LS)法,最大似然估计(MLE)法和改进方法用于估计威布尔分布的参数。然后推导拟合优度和风能特征指标。结果表明,MLE和改进的MLE方法在参数估计方面优于LS方法,并且随着风切变不同高度下的风速分布。案例研究验证了改进方法的合理性和有效性。

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