高功率因数三相整流器研究  

Research on high power factor three⁃phase rectifier

作　　者：张萌 王琪[1] 王晨 ZHANG Meng;WANG Qi;WANG Chen(School of Electronic Information Engineering,Xi’an University of Technology,Xi’an 710021,China)

机构地区：[1]西安工业大学电子信息工程学院,陕西西安710021

出　　处：《电子设计工程》2020年第21期56-59,64,共5页Electronic Design Engineering

基　　金：陕西省科技重点研发计划一般项目(2019GY-084)。

摘　　要：随着电网谐波污染问题的日益严重和人们对绿色电能变换的需求,PWM整流器(PWM recti⁃fier)技术引起了人们的高度重视,尤其是三相电压型PWM整流器,它的反应快速和运行平稳性急需保证,同时要减少谐波对电网的污染,在传统电压、电流双闭环控制策略的基础上,利用模糊控制思想,进行新型控制方法的设计,该方法是通过传统PI控制器进行内环电流的控制,而通过模式PI控制器进行外环电压的控制。仿真结果数据显示,系统的动静态性能能够被此种控制方法增强,同时单位功率因数的运行得以实现。With the problem of grid harmonic pollution becoming increasingly serious and people’s demand for green power conversion,the PWM rectifier technology has attracted much attention,especially for the three⁃phase voltage source PWM rectifier.Its fast response and smooth operation need to be guaranteed.At the same time,it is necessary to reduce the pollution of the power grid by harmonics.Based on the traditional closed⁃loop control strategy of voltage and current,a novel control method is designed in which the inner loop is designed by using the mode and the control idea.The method is to control the inner loop current by the traditional PI controller and the outer loop voltage by the mode PI controller.The data of the simulation results show that the dynamic and static performance of the system can be enhanced by this control method,and the unit power factor operation can be realized.

关 键 词：电网谐波 绿色电能 三相电压型PWM整流器 模糊PI控制 

分 类 号：TM461[电气工程—电器]