电网谐波治理仿真研究

High voltage distribution network harmonic suppression simulation study

为了对高压配电网的谐波进行治理,本文研究了一种适用于高压配电网的并联电抗式有源滤波器,详细介绍了它的拓扑结构;采用伯德图的方法,分析了它采用分频控制方法的必要性;提出了一种基于傅里叶变换的频率和谐波估算方法,这种方法可以实时估算时变的畸变信号的基波频率、相角和谐波幅值相位。仿真结果证明了所使用方法可以有效治理高压配电网谐波。

In order to suppression high voltage distribution network harmonic, this paper study an shunt reactor type hybrid active filter which is suitable for high voltage distribution network.detailing its topology; Bode diagram of the method used to analyze it divide control method using necessity; proposed an harmonic estimation methods based on Fourier transform frequency, this method can estimate the time-varying real distortion signal fundamental frequency, phase angle harmony amplitude phase. Simulation results show the method can be used for effective governance of high voltage distribution network harmonics.