基于谐波注入滤波法的单相整流电路的仿真研究  

Research and simulation of single-phase rectification circuit based on harmonic injection filtering method

作　　者：杨晓萍[1] 陈莉[1] 

机构地区：[1]西安理工大学水电学院,陕西西安710048

出　　处：《电气传动自动化》2007年第5期9-12,共4页Electric Drive Automation

摘　　要：电气化铁路电力机车产生的谐波已成为电力系统的主要谐波污染源之一。介绍了基于无源谐振电路的谐波注入滤波法,其基本思想是在电力机车整流电路交流侧的方波电流中叠加二次谐波电流,这样可明显地降低交流侧电流的谐波含量,并且使谐波畸变率明显降低。通过对SS4型电力机车整流电路的二次谐波注入滤波法的详细分析,并经过MATLAB仿真,验证了该方法可以取得良好的滤波效果。The harmonics generated by electrical locomotive in electrical railway system has become the major harmonic sources in power system. A method of harmonic injection filter based on passive power resonant circuit is introduced, in which the main idea is the square wave current at AC side of electrical locomotive rectification circuit are overlaped with second-order harmonic current. Therefore it can obviously decrease the harmonic factors of the current at AC side and lower THD. The method of second-order harmonic injection filter in type-SS4 locomotive rectification circuit is illustrated in detail and simulated in MATLAB. The results verify its excellent filtering effect.

关 键 词：谐波注入滤波法 SS4型电力机车 整流电路 谐波抑制 仿真 

分 类 号：TM714[电气工程—电力系统及自动化]