基于风频Weibull分布和风机功率特性求解风机发电量

提出了一种准确求解风机发电量的方法。首先利用欲安装风机地区一年的风速资料建立风速频率Weibull分布的数学概率模型来拟合实际的风频分布,然后根据风力发电机自身的功率特性通过最小二乘法拟合输出功率特性曲线,最后采用一个实际的例子详细阐述了这种风机发电量的计算方法并通过此方法得到该地区使用Fortis Espada(800)风力发电机发电的相关数据的计算结果。由于这种计算方法完全建立在风速频率Weibull分布和风机自身的输出特性的基础上,因此得到的风机输出平均功率和发电量的计算结果更加准确。在辅助计算软件的协助下,计算过程可以得到很大简化并满足工程应用。

The Calculation of Energy Provided by Wind Turbine Based on Its Power Characteristic and the Wind Frequency Weibull Distribution

This paper dissertate an accurate way of calculating the energy provided by wind turbine.First,The Weibull distribution mathematical model of wind frequency is formed by using the local weather data to fit the real wind velocity distribution.Then the power characteristic of wind turbine can be derived by analyzing the wind turbine's output data.In the second part,an example of using Fortis Espada(800) wind turbine to calculate the relative statistics is provided to better explain the method.As this method is fully based on the power characteristic of wind turbines and the Weibull distribution of wind frequency,the results is more precise and reliable.With the help of auxiliary software,the calculating process can be simplified to satisfy the engineering application.