同步电机的谐波参数模型和谐波潮流计算

在文献 [1 ,2 ]的基础上重新推导了同步电机的谐波参数模型 ,并对其物理意义赋予了新解释 ;介绍了几种有关的电力元件谐波参数模型 ;编制了相应的谐波潮流计算程序 ,并进行了大量计算。在分析计算结果的基础上 ,指出了常用的不计同步电机会派生谐波的“无源”模型 ,不可能用以分析源于电力元件不对称而实际存在的谐波潮流 ,对由于元件非线性而衍生的谐波潮流也会带来计算误差 ;推荐采用重新建立的同步电机模型

HARMONIC-PARAMETER MODEL OF SYNCHRONOUS MACHINE AND HARMONIC LOAD FLOW STUDY

In this paper, based on[1,2], harmonic parameter model of synchronous machine is reestablished and new physical interpretation of this model is given;harmonic|parameter models of some other power elements are introduced;corresponding harmonic load flow study program is developed and a lot of computations are undertaken.Based on these,it is pointed out that conventional synchronous machine model that does not derive harmonics connot be used in analyzing the actually existing harmonic load flow caused by power element asymmetry;for harmonic load flow caused by power element nonlinearity,this model is also not sufficiently accurate; the new model reestablished in this work is recommended.