一种基于主动基频环流注入实现全范围运行的多MVAC端口增强型模块化多电平变换器

The extensive integration of new sources and loads threatens the safe operation of the conventional ac distribution networks. The soft normally open point (SNOP) is proposed as an efficient solution. However, the mainstream back-to-back modular multilevel converter (MMC) scheme requires numerous devices and capacitances, which is not conducive to popularization. Lately, a novel modular multilevel ...