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A V2G-enabled Seven-level Buck PFC Rectifier for EV Charging Application

This article presents a novel bidirectional multilevel buck rectifier with power factor correction for the charging systems of currently available commercialized electric vehicles. As it synthesizes seven voltage levels, the proposed rectifier entails low harmonics. This rectifier enables grid-to-vehicle (G2V) operation in buck mode and vehicle-to-grid (V2G) operation in boost mode. The proposed topology utilizes the switched capacitors principle to achieve a self-voltage balancing of the capacitors. Experimental results are presented to validate the proposed rectifier.