耦合可控双调谐滤波器仿真研究

Simulation research of the coupled double-tuned filter based on the controllable reactor

随着社会的发展,对电能质量的要求越来越高。目前,抑制谐波最常用的方法是装设无源滤波器。无源滤波器具有容易设计的优点,但其滤波效果严重依赖于电网的系统阻抗,并容易受温度漂移、网络上谐波污染程度、滤波器电容老化及非线性负荷变化的影响,使得滤波器滤波效果变差。研究并设计了一种基于双可控电抗器的双调谐滤波器,用以滤除5次和7次谐波,分析了元件参数变化和频率偏移时,与可控电抗器调节量的关系,并通过PSCAD进行了仿真。仿真证明这种新类型的调谐滤波器具有良好的滤波效果。

As the development of society,high-quality power becomes more and more important.Recently,the common way of harmonic supression is to install passive filter to power system.Parallel passive filter is easy to design,but its filter performance depends on the system impedance characteristics,and it is easily affected by the network’s harmonic pollution degree,temperature excursion,filter capacitance aging and the influence of the non-linear load’s changing.these problem influence the passive filter’s performan...