一种用于ZVS运行的具有变占空比准方波调制的串联臂模块化多电平DC/DC变换器

A series-arm modular multilevel dc/dc converter is proposed in this article, which is suitable for dc transformer applications in medium-voltage (MV) dc systems. The proposed converter utilizes the series-arm configuration on the MV side, eliminating the MV terminal concentrated capacitors and reducing the number of submodules. Transmission power regulation can be achieved by adopting the variable...