It is expected that in the near future the use of high-voltage dc (HVDC) transmission and
medium-voltage dc (MVDC) distribution technology will expand. This development is driven …

This paper introduces a modular multilevel dc/dc converter, termed the DC-MMC, that can
be deployed to interconnect HVDC networks of different or similar voltage levels. Its key …

Grid-connected converters (GCCs) are used extensively for the integration of DC power
sources with AC power sources. However, since it is a complex topic, there are many …

This paper presents the theoretical basis of the control strategy that allows the cell capacitor
voltage regulation of the full-bridge modular multilevel converter (FB-MMC) to be controlled …

High voltage direct current (HVDC) technology is a key component in power systems owing
to huge benefits such as long‐distance power transmission, lower losses, asynchronous …

This paper proposes a novel dc power electronic transformer (DCPET) topology for
locomotive, ac/dc hybrid grid, dc distribution grid, and other isolated medium-voltage and …

Modular multilevel converter (MMC)-based solid-state transformers (SSTs) have gained
increasing interest lately. Topologies consisting of cells made of directly coupled MMC …

This paper proposes a novel modular multilevel dc-dc converter intended for transforming dc
voltage and interconnecting dc grids for medium-voltage networks. The converter is …

Ina direct current (dc) distribution network, the modular multilevel high-frequency dc
converter (MDCC) can achieve electrical isolation, voltage conversion and power …

This paper presents a transformerless bipolar dc-dc converter based on series-connected
submodules. It is intended for transforming dc voltage and managing power flow for …