变速恒频风力发电机组的无功功率极限

REACTIVE POWER LIMIT OF VARIABLESPEED CONSTANTFREQUENCY WIND TURBINE

根据变速恒频风电机组的工作原理,建立了变速恒频风电机组的稳态数学模型,该模型考虑了风力机、双馈电机及其转速控制的稳态特性。在此模型的基础上,提出了计算变速恒频风电机组无功功率极限的方法,并对一变速恒频风电机组进行了计算分析,验证了所提方法的可行性。

According to the working principle of variable-speed constant-frequency wind turbine, its steady state mathematical model is established in which the steady state performances of turbine, doubly-fed induction generator and its rotation speed control are condisered. On the basis of this model a method to calculate the reactive power limit of the variable speed and constant frequency wind turbine is put forward and the calculation and analysis for a variable-speed constant-frequency wind turbine are carried out, and the feasibility of the proposed method is varified.