Balanced Charging Algorithm for CHB in an EV Powertrain

Filippo Gemma, Giulia Tresca, Andrea Formentini and Pericle Zanchetta ()
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Filippo Gemma: Department of Electrical, Computer and Biomedical Engineering, University of Pavia, 27100 Pavia, Italy
Giulia Tresca: Department of Electrical, Computer and Biomedical Engineering, University of Pavia, 27100 Pavia, Italy
Andrea Formentini: Department of Marine, Electrical, Electronics and Telecommunication Engineering, University of Genova, 16126 Genova, Italy
Pericle Zanchetta: Department of Electrical, Computer and Biomedical Engineering, University of Pavia, 27100 Pavia, Italy

Energies, 2023, vol. 16, issue 14, 1-15

Abstract: The scientific literature acknowledges cascaded H-bridge (CHB) converters as a viable alternative to two-level inverters in electric vehicle (EV) powertrain applications. In the context of an electric vehicle engine connected to a DC charger, this study introduces a state of charge (SOC)-governed method for charging li-ion battery modules using a cascaded H-bridge converter. The key strength of this algorithm lies in its ability to achieve balanced charging of battery modules across all three-phase submodules while simultaneously controlling the DC charger, eliminating the need for an additional intermediate converter. Moreover, the algorithm is highly customizable, allowing adaptation to various configurations involving different numbers of submodules per phase. Simulative and experimental results are presented to demonstrate the effectiveness of the proposed charging algorithm, validating its practical application.

Keywords: battery modules; cascaded H-bridge; charging algorithm; charging protocol; multilevel converter (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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