基于不同工况的直流-直流固态变压器模块化多电平变换器分析与评估

In modular multilevel converter (MMC)-based solid-state transformer (SST), the MMC dominates total volume and power loss. The loss and volume of MMC are influenced by various factors, such as operating frequencies, waveforms of ac-link voltage, numbers of submodules, as well as modulation methods. Their impacts on loss and volume of MMC have not been comprehensively analyzed and evaluated. To inve...