A 3.3kW Bi-directional EV Charger with V2G and V2H function
V2G-V2H 기능을 갖는 3.3kW급 전기자동차용 양방향 충전기

Se-Hyung Jung, Seok-Yong Hong, Jun-Sung Park, Se-Wan Choi
2015 The Transactions of the Korean Institute of Power Electronics  
This paper proposes a 3.3-kW bi-directional EV charger with V2G and V2H functions. The bi-directional EV charger consists of a DC-DC converter and a DC-AC inverter. The proposed EV charger is suitable for wide battery voltage control due to the two-stage configuration of the DC-DC converter. By employing a fixed-frequency series loaded resonant converter as the isolated DC-DC converter, zero-current-switching can be achieved regardless of battery voltage variation, load variation, and power
more » ... . A 3.3-kW prototype of the proposed EV charger has been built and verified with experiments, and indicates a maximum efficiency of 94.39% and rated efficiency of 94.23%. Key words: EV(Electric Vehicle), V2G(Vehicle to Grid), V2H(Vehicle to Home), Bi-directional battery charger, ZCS(Zero Current Switching), SRC(Series Resonant Converter)
doi:10.6113/tkpe.2015.20.1.31 fatcat:y7wsfjakrfeljfxgqlp6c5pu6q