Efficient MMC Devices with Reduced Radiated and Conducted Interferences for Electric Vehicles Application

This paper presents a new cell module for modular multilevel converter (MMC) used in electric vehicles application. Traditionally, MMC has been used in high-power high-voltage application. The large number of power electronic devices required is rather used for reducing their voltage stress than the harmonic contents. Using the proposed cell topology, higher numbers of levels are achieved while the number of component remains low. This characteristic makes it an ideal configuration for a low switching high-efficiency AC/DC power converter, required for the soon to be common for plug-in vehicles application. Such converter can play two roles, not only can it be used as an active bidirectional charger, but also as active filter increasing network reliability. A predictive control algorithm is also presented in this paper, which will demonstrate the possibility to impose a charging curve on the DC side, even when the converter is used as active filter.