关于扩展单直流源五电平逆变器直流母线利用率的研究

Enhancement of dc bus voltage utilization for a five-level inverter with single dc source and capacitor-fed H-bridge (CHB) units is investigated in this paper. A carrier-based modulation technique is used for boosting the dc bus utilization, which is established by providing detailed mathematical analysis. The five level inverter used here is realized by cascading a CHB unit to each phase of a thr...