基于SPWM调制的单相大功率整流器研究  

Research on the Single-Phase SPWM Rectifier

作　　者：王成智[1] 邹云屏[1] 贾凯[1] 李芬[1] 

机构地区：[1]华中科技大学,湖北武汉430074

出　　处：《电力电子技术》2008年第1期69-71,共3页Power Electronics

摘　　要：为了使PWM整流器具有较强的鲁棒性,采用SPWM调制方式使系统具有恒定的开关频率;为使输入侧获得高功率因数,采用一种数字锁相环,通过整流器直流外环的陷波滤波器,消除直流电压的谐波分量,在提高输入波形质量的同时,加快了系统的动态响应。最后,搭建了10kVA单相SPWM整流器样机,通过仿真和实验验证了理论分析。To make the PWM rectifier more robust,the subharmonics PWM modulator mode was used to ensure the system for constant switch frequency, and a digital phase lock loop was used to make the system having high power factor.The notch filter can be added to the DC voltage control loop to eliminate the diploid main-frequency, it can enhance the quality of the input current and ensure the system to fast dynamic response.A phototype of 10 kVA single phase SPWM rectifier is erected,the simulative and experimental results validate the conclusions.

关 键 词：整流器 脉宽调制/锁相环 陷波器 

分 类 号：TM46[电气工程—电器]