双级矩阵变换器输入功率因数可调的载波调制策略  

A Carrier-based Modulation Strategy for Two Stage Matrix Converters With Adjustable Input Power Factor

作　　者：黄海涛[1] 周波[1] 秦显慧[1] 刘晓宇[1] 雷家兴[1] 

机构地区：[1]江苏省新能源发电与电能变换重点实验室(南京航空航天大学),江苏省南京市210016

出　　处：《中国电机工程学报》2015年第1期177-184,共8页Proceedings of the CSEE

基　　金：国家自然科学基金项目(51177069);江苏省高校优秀科技创新团队资助项目~~

摘　　要：载波调制方法的出现简化了双级矩阵变换器的控制,使用传统载波调制方法时在高调制区时会产生窄脉冲,且设定输入功率因数角较大时会有安全隐患。先对传统载波调制方法的窄脉冲现象进行研究,通过对调制函数的修正一定程度上避免了窄脉冲的产生,并在此基础上解决输入功率因数角较大时直流母线可能出现负压的问题,从而输入功率因数角不再受传统调制方法下有关调节范围的限制。实验结果证明了所提方案的正确性及可行性。The control of two stage matrix converters （TSMC） becomes simple when carrier-based modulation strategy is adopted, however, narrow pulses may appear and there exists security risk when the input power factor is low if no limitation is provided. This paper deals with narrow pulse problems when traditional carrier based modulation strategy is adopted at first, then solves the problem that negative voltage is to appear at the DC side when input power factor is low, thus the limitation of input power factor angles eliminated. The feasibility of the proposed method is verified through experimental results.

关 键 词：双级矩阵变换器 载波调制 功率因数调节 

分 类 号：TM46[电气工程—电器]