基于三相四桥臂全桥模块化多电平变换器的多端口电力电子变压器

This article presents a multiport power electronic transformer (PET) based on a three-phase four-arm full-bridge modular multilevel converter (MMC), which is suitable for the hybrid ac–dc distribution grid because it can provide four ports, including medium-voltage ac and dc ports, low voltage dc and ac ports. Compared with the conventional MMC-based PET, which adopts three-phase six arms MMC with...