Communication Dans Un Congrès Année : 2025

Average current mode control for a GaN-based single-phase 2-level DAB converter

Résumé

Dual Active Bridge (DAB) converters are widely employed in electric vehicles charging equipment, both in Onboard Chargers (OBCs) and offboard charging infrastructure, either in Grid-to-Vehicle (G2V) or Vehicle-to-Grid (V2G) power flow. However, due to the unavoidable mismatches in device parameters, a DC bias current can bring the transformer core to saturation, compromising the converter performance. Developing a means with a dedicated current control to eliminate the parasite DC current part is therefore essential for the structure to avoid operating points in magnetic saturated regions. This work aims, through MATLAB/Simulink simulations, to design a current mode control law with its low steady-state error reducing the DC parasite current. Operating in high switching frequency, GaN or SiC devices could represent today the best option available on the market for enhancing power density, efficiency and dynamic performance of the converter.

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Dates et versions

hal-05398427 , version 1 (04-12-2025)

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Identifiants

  • HAL Id : hal-05398427 , version 1

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Giuseppe Galioto, Antonino Sferlazza, Giuseppe Costantino Giaconia, Bruno Estibals, Hugo Moreau, et al.. Average current mode control for a GaN-based single-phase 2-level DAB converter. Symposium de Génie Électrique SGE 2025, cnrs, ups, Jul 2025, Toulouse, France. ⟨hal-05398427⟩
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