@inproceedings{46619d4da6b5490db2b98f7cc96cb78d,
title = "Modular Three-phase Single-stage Isolated AC-DC Converter for Electrolytic Capacitor-less EV DC Charging",
abstract = "This paper presents a three-phase AC-DC converter formed by three single-stage electrolytic capacitor-less isolated AC-DC modules. The parallel output connection of the three modules provides DC battery current despite the pulsating current of each module at twice the mains frequency. The two interleaved totem-pole circuits are switched at fixed 50\% duty, resulting in a ripple-free sinusoidal grid current with very small filter inductors. The control is simple and easy to implement since the phase-shift angle is the only control variable. The proposed control is able to provide DC current under unbalanced conditions. ZVS turn-on of all switches is achieved in both directions of power flow. A 11kW prototype of the proposed converter achieved a volumetric power density of 5.5 kW/L (90.4 W/in3). The prototype demonstrates 96.3\% peak efficiency and maintains relatively high efficiency over wide ranges of power and battery voltage.",
keywords = "capacitor-less, electric vehicle, isolated ac-dc converter, modular, onboard charger, single-stage, three-phase",
author = "Hyungjin Kim and Hamza Belkamel and Junyeong Park and Hakim, \{Ramadhan Muhammad\} and Sewan Choi",
note = "Publisher Copyright: {\textcopyright} 2020 IEEE.; 9th IEEE International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia ; Conference date: 29-11-2020 Through 02-12-2020",
year = "2020",
month = nov,
day = "29",
doi = "10.1109/IPEMC-ECCEAsia48364.2020.9368079",
language = "English",
series = "2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "1573--1578",
booktitle = "2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia",
}
