阻容负载整流电路的谐波分析

Harmonic Analysis of the RC Load in Rectifier Circuit

建立了阻容负载整流电路的数学模型,运用数学推理的方法对阻容负载整流电路产生的谐波进行了定量计算,通过推导直流侧电流的计算公式,最终可以通过傅里叶级数展开得出各次谐波含量计算公式。最后通过MATLAB/SIMULINK中的电力系统模块SimPower Systems Blockset建立了该整流电路的仿真模型,对其工作情况进行了仿真研究。计算和仿真结果表明阻容负载整流电路的谐波污染非常严重。

This paper analyses the power harmonic of RC load in single phase rectifier circuit in-depth by quantitative calculation. Calculation formulas about the power current of the RC load in rectifier circuit are inferred. Fourier series is used in analyzing the current, and the expressions of each harmonic current can be ensured. In the end, simulation models are built by MATLAB/SIMULINK, and simulation results show that harmonic effect of RC load in rectifier circuit is bad.