一种基于单级双向模块化多电平变换器的固态变压器

Modular multilevel converter based solid-state transformer (MMC-SST) is an eminent solution to interface distributed energy resources (DERs) and loads in hybrid ac/dc grids. However, the large number of switching devices and the large size of passive elements are its main drawbacks, which lead to high implementation cost and footprint. In this article, we propose a novel single-stage MMC-SST confi...