CAJ | 학술논문

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。
재파조제방법적출현간화료쌍급구진변환기적공제，사용전통재파조제방법시재고조제구시회산생착맥충，차설정수입공솔인수각교대시회유안전은환。선대전통재파조제방법적착맥충현상진행연구，통과대조제함수적수정일정정도상피면료착맥충적산생，병재차기출상해결수입공솔인수각교대시직류모선가능출현부압적문제，종이수입공솔인수각불재수전통조제방법하유관조절범위적한제。실험결과증명료소제방안적정학성급가행성。
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.