谐波滤波器的设计方法和建模分析

Designing Methods and Modeling Analysis of Passive Power Filter

电力电子技术在电力推进船舶上的大量应用,带来了日益严重谐波问题。简述了无源滤波器的设计步骤,给出了无源滤波器的参数设定方法和具体计算过程,建立了12脉冲交直变流器和三相谐波滤波器的SIMULINK仿真模型,比较启用三相谐波滤波器前后流入母线的电压和电流波形,并利用FFT分析工具比较启用三相谐波滤波器前后流入母线电流谐波成分的结果。仿真结果表明,该谐波滤波器的设计方法是可行的,能有效地抑制电力推进系统谐波。

The massive application of power electronic technology on electric propulsion ship has also caused harmonic problems, and the problems have become more and more serious. The designing steps of passive power filter are summarized. The paper demonstrates the calculation method of parameter design of passive power filter, and establishes 12 pulse heterogeneity rectifier and three - phase passive power filter of simulation model, and analyses the waveform of current and voltage and the results of harmonic analysis of current wave - shape by FFT tools when using three - phase passive power filter or not. The results of simu- lation show that designing methods of the passive power filter are possible, and can suppress harmonics of power system of electric propulsion ship.