Multiport power electronic transformers utilizing a cascaded H-bridge converter with split battery energy storage modules are a promising solution for electric vehicle extreme fast charging stations. This configuration not only enables the direct integration of these charging stations with medium voltage grid but also mitigates the impact of the charging station on the distribution grid. However, the BES modules suffer from rapid degradation if their utilization is not well managed. This paper proposes a novel optimized control strategy able to always utilize the full cascaded H-Bridge operative range reducing the BES modules stress and ensuring a fast State of Charge convergence.
Optimized Control of a CHB EV Charging Station with Integrated BES
Ghauri M. A.;Formentini A.;Passalacqua M.;Marchesoni M.
2025-01-01
Abstract
Multiport power electronic transformers utilizing a cascaded H-bridge converter with split battery energy storage modules are a promising solution for electric vehicle extreme fast charging stations. This configuration not only enables the direct integration of these charging stations with medium voltage grid but also mitigates the impact of the charging station on the distribution grid. However, the BES modules suffer from rapid degradation if their utilization is not well managed. This paper proposes a novel optimized control strategy able to always utilize the full cascaded H-Bridge operative range reducing the BES modules stress and ensuring a fast State of Charge convergence.
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