A Distributed Control Strategy for Automotive Modular Multilevel Converter

According to literature, Multilevel Converter
(MLC) promise to reduce cost and increase efficiency of electric vehicles. Unfortunately, prior studies lack of control strategies for MLC under automotive conditions. This work presents an approach for a distributed control strategy for Modular Multilevel Converter (MMC) in Battery Electric Vehicles (BEV), in order to give a fundamental concept for the realization of scalable MMC topologies. The proposed control strategy decouples the control frequency from the carrier frequency of the modulation scheme and further decouples the applied communication technology, leading to more freedom of implementation. A prototype has been developed to confirm the feasibility of our approach for MMC in an automotive battery pack.