Distributed Input Multiport MMC Based Power Converter for AC and DC Loads

A distributed input multiport topology is proposed in this letter based on the use of a modular multilevel converter (MMC). The distributed input modular multilevel converter (DIMMC) is based on the application of an MMC to multiphases systems, such as multiport generators or multiport transformers. The proposed converter is devised for high voltage and high-power applications with distributed inputs such as ship electric propulsion systems or industrial application available for both ac or dc loads. The main claims of the DIMMC are integration, modularity, scalability, and fault tolerance. This letter analyzes the steady state behavior of the converter, fault tolerance, and the advantages/disadvantage of its application.