三相电压源型PWM整流器PI调节器的设计分析

摘要：为了加快动态响应，加强对非线性负载扰动的适应能力，三相电压源型 PWM 整流器

广泛采用了电流内环电压外环的双环 PI 控制方案。双环 PI 调节器参数对三相电压源型 PWM

整流器的直流侧电压响应、交流侧谐波与功率因素有很大的影响。双环 PI 调节器参数的设

计是一个重要、复杂而又十分经验性的工作。本文应用 Matlab/Simulink 仿真研究了不同双10

环 PI 调节器参数对三相电压源型 PWM 整流器工作性能的影响，并据此提出了一套简单方

便的双环 PI 调节器参数的设计方法。仿真结果验证了该方法的有效性和可行性。

关键词：PWM 整流器；双环控制；响应特性；谐波；PI 调节器参数

中图分类号：TM461

Abstract: In order to quicken the dynamic response and strengthen the ability to adapt to

disturbance of nonlinear load, three-phase voltage source PWM rectifier employs double loop PI

control scheme which consists of current inner loop and voltage outer loop widely. The parameters

of double loop PI regulators have significant influence on the DC side voltage response, AC side

harmonic component and power factor of three-phase voltage source PWM rectifier. The design of 25

double loop PI regulator parameters is a very important, complicated and empirical work. With the

simulation tool of Matlab/Simulink, this paper analyzes the influence of different double loop PI

regulator parameters on the operation characteristics of three-phase voltage source PWM rectifier.

Based on that, a design method of double loop PI regulator parameters which is simple and

convenient is proposed. The simulation results show the effectiveness and feasibility of the 30

三相电压源型PWM整流器常采用电流内环、电压外环的双环PI控制方案

用于控制整流器的输出电压，电流内环实现网侧电流的波形和相位控制。

响应性能、直流侧电压波动和网侧电流的谐波含量有很大的影响，因此合理地选择双环PI