Deadbeat predictive direct power control of interleaved buck converter‑based fast battery chargers for electric vehicles

Hye-Won Choi; Seok-Min Kim; Jinwoo Kim; Younghoon Cho; Kyo-Beum Lee

Deadbeat predictive direct power control of interleaved buck converter‑based fast battery chargers for electric vehicles

Vol. 20, No. 5, pp. 1162-1171, Sep. 2020

10.1007/s43236-020-00106-7

Deadbeat predictive control

Direct power control

Multi-leg interleaved converter

Fast power tracking control

Electric vehicle charger

Abstract

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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Cite this article

[IEEE Style]

H. Choi, S. Kim, J. Kim, Y. Cho, K. 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, 2020. DOI: 10.1007/s43236-020-00106-7.

[ACM Style]

Hye-Won Choi, Seok-Min Kim, Jinwoo Kim, Younghoon Cho, and Kyo-Beum Lee. 2020. Deadbeat predictive direct power control of interleaved buck converter‑based fast battery chargers for electric vehicles. Journal of Power Electronics, 20, 5, (2020), 1162-1171. DOI: 10.1007/s43236-020-00106-7.