摘要
传统二极管不控整流或晶闸管相控整流,对电网注入大量谐波及无功功率,造成电源污染。PWM整流器采用全控型开关器件取代二极管或半控型器件,并将PWM控制技术引入整流器,在稳定直流电压输出同时,使交流侧电源电流接近正弦波,实现能量的双向流动。通过介绍单相PWM整流器的控制方法,利用Matlab/Simulink搭建仿真模型,比较分析不同控制方式下PWM整流器运行时电压波形及输入电流的谐波频谱。
Traditionally controlled rectifier diode or thyristor phase-controlled rectifier,a large number of harmonics injected into the grid and reactive power,resulting in power pollution.. PWM rectifier switching devices using full-controlled replacing diodes or semi-controlled device,and the PWM control technology into the rectifier,In a stable DC voltage output while the AC side nearly sinusoidal supply current to achieve the two-way flow of energy.Describes a single-phase PWM rectifier control method using Matlab/Simulink to build simulation models,comparative analysis of different control mode PWM rectifier operation voltage waveform and the input current harmonic spectrum.
出处
《电子设计工程》
2014年第6期92-95,共4页
Electronic Design Engineering
