电铁供电系统有源电力滤波器动态补偿性能的仿真研究

Study on Matlab Simulation of Active Power Filter＇s Dynamic Performance for the Electrified Railway System

本文对用于电气化铁道牵引（简称电铁）供电系统的谐波抑制的有源电力滤波器进行了分析研究，首先介绍了有源电力滤波器的基本原理，其次考虑到电铁供电系统中电力机车这个负荷是随机变化的，在MATLAB／SIM-ULINK的仿真软件下，对于在负荷变化时有源电力滤波器的谐波动态补偿动态性能进行了仿真研究，仿真结果表明文中提出的有源电力滤波器能有效地实现对电铁供电系统的谐波动态补偿。

This paper presents the performance of active power filter and discuses the principles of operation of it for restraining the electrified railway system harmonic current. At first, fundamental principles of active power filter is introduced. Secondly, in consideration of electric locomotive have random variation character. The simulation of electrical railway system model is presented with MATLAB/SIMULINK using active power filter when load chan- ges, The simulating results prove the active power filter mentioned in the paper can realize dynamic harmonic cur- rent compensation efficiently.