Cascaded H-Bridge (CHB) converters have been considered valid candidates for replacing the two-level inverter in EV powertrain applications. This paper presents a State of Charge-governed algorithm for charging Li-Ion battery modules within a Cascaded H-Bridge converter for EV powertrain, connected to a DC charger. The novelty of this algorithm lies in the balanced and concurrent charge of the battery modules installed in all submodules of the three-phases, with no extra middle stage converter needed. Simulation and experimental results are shown to prove the validity of the novel architecture and the experimental setup is described. © 2022 EPE Association.
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