考虑风速、风向变化及尾流效应的风电场建模

The modeling of wind farm considering the changes of win speed, wind direction and wake effect

对风电场建模过程中,确立准确的输入风速模型至关重要。风电场中机组排列密集,风机之间存在尾流效应使得各台风机的输入风速不可能完全相同,尾流效应的强弱与很多因素有关,如:风速、风向、机组的排列布置等。利用MATLAB程序实现在不同风速、风向、风机排列情况下输入风速的计算,模拟实现对风速、风向变化情况下风电场的快速建模。可以较准确地描述出当风速、风向变化时风电场功率输出的变化。通过仿真验证了此方法的正确性,该方法的可移植性高,可用于各种规模风电场输入风速模型的计算。

What matters for the process of modeling in wind farm is to establish the model accurately of wind velocity inputs. The machine of typhoon wind speed inputs may not be exactly the same. On the one hand,the wind farm unit arranges densely. On the other hand,there exists wake effect between the fan.Many factors have an influence on the wake effect, such as wind speed, wind direction, the arrangement of unit, etc. It can realize the calculation of wind speed input in different situations,such as different wind speed, different wind direction and different arranged wind machine by using Matlab,which will modeled rapidly to simulate the wind farm with changing wind speed and direction.In this way,the model can describe accurately the change of the wind power when wind speed and direction are different. The simulation verified the correctness of the method which has high portability and can be used to calculate wind speed inputs of the various scale wind farm model.