Title |
Study on 3-Phase Isolated PFC Converter for the Electric Vehicle Charger |
Authors |
Yoon-Jae Kim ; Jun-Young Lee ; Il-Oun Lee ; Byung-Kwon Lee ; Seung-Won Choi ; Young-Gun Hong |
DOI |
https://doi.org/10.6113/TKPE/2017.22.5.404 |
Keywords |
PFC converter ; DC-DC converter ; Buck converter ; Power factor control ; Current and voltage control |
Abstract |
This paper suggests an isolated PFC converter for electric vehicle (EV) chargers with wide-output voltage range. The proposed converter is based on voltage-fed full-bridge structure. All the harmonic and output controls are performed by secondary and primary switches are only operated under a fixed frequency with 50% duty-ratio. In addition, harmonic modulation technique is adopted to obtain a near unity power factor without input current monitoring. The feasibility of the proposed charger has been verified with a 10-kW prototype. |