Analysis of multilevel PWM converter based on FLC modules for an AC traction application

The paper presents simulation of multilevel PWM front-end converter based on 5-level flying capacitor (FLC) modules for an AC traction application. Two possibilities of parallel connected FLC modules with common and separated DC bus (where each module can provide different DC voltage level) have been analyzed in this paper. Several simulations are presented for both solutions, what confirm usefulness of the proposed approach for high power traction application.