Modular Three-phase Single-stage Isolated AC-DC Converter for Electrolytic Capacitor-less EV DC Charging

Hyungjin Kim; Hamza Belkamel; Junyeong Park; Ramadhan Muhammad Hakim; Sewan Choi

doi:10.1109/IPEMC-ECCEAsia48364.2020.9368079

Modular Three-phase Single-stage Isolated AC-DC Converter for Electrolytic Capacitor-less EV DC Charging

Hyungjin Kim
, Hamza Belkamel
, Junyeong Park
, Ramadhan Muhammad Hakim
, Sewan Choi

Dept. of Electrical and Information Engineering

Seoul National University of Science and Technology (SNUST)

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

19 Scopus citations

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.

Original language	English
Title of host publication	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
Number of pages	6
ISBN (Electronic)	9781728153018
DOIs	https://doi.org/10.1109/IPEMC-ECCEAsia48364.2020.9368079
State	Published - 29 Nov 2020
Event	9th IEEE International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia - Nanjing, China Duration: 29 Nov 2020 → 2 Dec 2020

Publication series

Name	2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia

Conference

Conference	9th IEEE International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia
Country/Territory	China
City	Nanjing
Period	29/11/20 → 2/12/20

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

capacitor-less
electric vehicle
isolated ac-dc converter
modular
onboard charger
single-stage
three-phase

Access to Document

10.1109/IPEMC-ECCEAsia48364.2020.9368079

Cite this

Kim, H., Belkamel, H., Park, J., Hakim, R. M., & Choi, S. (2020). Modular Three-phase Single-stage Isolated AC-DC Converter for Electrolytic Capacitor-less EV DC Charging. In 2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia (pp. 1573-1578). Article 9368079 (2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IPEMC-ECCEAsia48364.2020.9368079

Kim, Hyungjin ; Belkamel, Hamza ; Park, Junyeong et al. / Modular Three-phase Single-stage Isolated AC-DC Converter for Electrolytic Capacitor-less EV DC Charging. 2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia. Institute of Electrical and Electronics Engineers Inc., 2020. pp. 1573-1578 (2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia).

@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",

}

Kim, H, Belkamel, H, Park, J, Hakim, RM & Choi, S 2020, Modular Three-phase Single-stage Isolated AC-DC Converter for Electrolytic Capacitor-less EV DC Charging. in 2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia., 9368079, 2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia, Institute of Electrical and Electronics Engineers Inc., pp. 1573-1578, 9th IEEE International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia, Nanjing, China, 29/11/20. https://doi.org/10.1109/IPEMC-ECCEAsia48364.2020.9368079

Modular Three-phase Single-stage Isolated AC-DC Converter for Electrolytic Capacitor-less EV DC Charging. / Kim, Hyungjin; Belkamel, Hamza; Park, Junyeong et al.
2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia. Institute of Electrical and Electronics Engineers Inc., 2020. p. 1573-1578 9368079 (2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Modular Three-phase Single-stage Isolated AC-DC Converter for Electrolytic Capacitor-less EV DC Charging

AU - Kim, Hyungjin

AU - Belkamel, Hamza

AU - Park, Junyeong

AU - Hakim, Ramadhan Muhammad

AU - Choi, Sewan

PY - 2020/11/29

Y1 - 2020/11/29

N2 - 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.

AB - 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.

KW - capacitor-less

KW - electric vehicle

KW - isolated ac-dc converter

KW - modular

KW - onboard charger

KW - single-stage

KW - three-phase

UR - https://www.scopus.com/pages/publications/85103217673

U2 - 10.1109/IPEMC-ECCEAsia48364.2020.9368079

DO - 10.1109/IPEMC-ECCEAsia48364.2020.9368079

M3 - Conference contribution

AN - SCOPUS:85103217673

T3 - 2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia

SP - 1573

EP - 1578

BT - 2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 9th IEEE International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia

Y2 - 29 November 2020 through 2 December 2020

ER -

Kim H, Belkamel H, Park J, Hakim RM, Choi S. Modular Three-phase Single-stage Isolated AC-DC Converter for Electrolytic Capacitor-less EV DC Charging. In 2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia. Institute of Electrical and Electronics Engineers Inc. 2020. p. 1573-1578. 9368079. (2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia). doi: 10.1109/IPEMC-ECCEAsia48364.2020.9368079

Modular Three-phase Single-stage Isolated AC-DC Converter for Electrolytic Capacitor-less EV DC Charging

Abstract

Publication series

Conference

UN SDGs

Keywords

Access to Document

Other files and links

Fingerprint

Cite this