文档介绍：第 27 卷第 13 期中国电机工程学报 May 2007
2007 年 5 月 Proceedings of the CSEE ©2007 .
文章编号:0258-8013 (2007) 13-0076-05 中图分类号:TM921 文献标识码:A 学科分类号:470×40
基于 PWM 整流器的 SVPWM 谐波分析新算法
陈瑶,童亦斌,金新民
(北京交通大学电气工程学院,北京市海淀区 100044)
A Novel Algorithm of SVPWM Harmonic Analysis Based on PWM Rectifier
CHEN Yao, TONG Yi-bin, JIN Xin-min
(School of Electrical Engineering, Beijing Jiaotong University, Haidian District, Beijing 100044, China)
ABSTRACT: According to the operational principle of 同时控制直流电压和网侧功率因数而被广泛应用
SVPWM and considering the characteristics of digital 于电机驱动、蓄电池充放电控制和并网发电等场
implement, a novel algorithm of SVPWM harmonic analysis [1-3]
合。其主电路如图 1 所示,其中 ex 表示各相网
based on PWM rectifier is proposed. This algorithm gives the
压,ux 表示整流器交流侧输出相电压,x=a,b,c。L
expression of phase voltage harmonics through Fourier analysis,
为网侧滤波电感,用于升压和限制电流谐波。
which provides the guidance for the design of grid side
inductance. Since the harmonic spectrum of ac-side phase
Q1 Q3 Q5
voltage of PWM rectifier is influenced not only by pulse
ia L + 
ea C Udc/2
modulation style, but also by the parameters of close-loop ua
ib
eb o
adjustors, a three-phase voltage source inverter controlled by n ub
ec ic + 
TMS320F2812 has been built to obtain the harmonics purely uc C Udc/2
generated by SVPWM and verify the algorithm. Po