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[International Journals] Hye-Won Choi, Seok-Min Kim, Jinwoo Kim, Younghoon Cho, and Kyo-Beum Lee, "Deadbeat Predictive Direct Power Control of Interleaved Buck Converter-Based Fast Battery Chargers for Electric Vehicles," Journal of Power Electronics, vol. 20, no. 5, pp. 1162–1171, Sep. 2020. -SCIE

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  • 날짜 2020-04-10 06:48
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 This paper presents a deadbeat predictive direct power control (DB-DPC) scheme for a fast battery charger to improve its dynamic performance and stability. Recently, battery chargers have been adopting paralleled multi-leg converters based on silicon carbide (SiC) devices to increase power capacity, which reduces the charging duration. However, the inherent instability of the battery is regarded as a crucial issue during the fast charging process. Therefore, the proposed DB-DPC provides a stable steady state since it includes real-time estimation of the variable battery impedance. Furthermore, the DB-DPC effectively minimizes the rising and settling time, which demonstrates fast-dynamic response characteristics when compared to proportional–integral (PI) control. The control performance is verified by various simulation and experimental results.

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