TY - GEN
T1 - Single-Stage Series-Connected Isolated Converters for MVAC to DC Applications
AU - Blinov, Andrei
AU - Chub, Andrii
AU - Vinnikov, Dmitri
AU - Bayhan, Sertac
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - This paper presents an novel fast electric vehicle (EV) charger configuration suitable for direct medium voltage (MV) connection. The idea is based on the multi-cell boost (MCB) structure and shares its advantages in terms of modularity, low line inductor requirements, high-frequency isolation and good semiconductor utilization. However, instead of using a two-stage conversion approach, where each cell includes power factor correction (PFC) rectifier that is followed by isolated dc-dc converters, a single-sage approach is implemented. In this case both PFC and isolation functions are realized with a single cell based on isolated current source converters (CSCs). The topology structure and its possible configurations are presented, followed by some design considerations. Next, some of the possible CSC topologies suitable for the proposed single-stage MCB cell are described, followed by simulation and benchmarking of selected topologies.
AB - This paper presents an novel fast electric vehicle (EV) charger configuration suitable for direct medium voltage (MV) connection. The idea is based on the multi-cell boost (MCB) structure and shares its advantages in terms of modularity, low line inductor requirements, high-frequency isolation and good semiconductor utilization. However, instead of using a two-stage conversion approach, where each cell includes power factor correction (PFC) rectifier that is followed by isolated dc-dc converters, a single-sage approach is implemented. In this case both PFC and isolation functions are realized with a single cell based on isolated current source converters (CSCs). The topology structure and its possible configurations are presented, followed by some design considerations. Next, some of the possible CSC topologies suitable for the proposed single-stage MCB cell are described, followed by simulation and benchmarking of selected topologies.
KW - DC fast charger
KW - ZCS
KW - ZVS
KW - current source converter
KW - electric vehicle (EV) charger
KW - off-board charger
KW - power factor correction (PFC)
KW - soft switching
UR - http://www.scopus.com/inward/record.url?scp=85130942209&partnerID=8YFLogxK
U2 - 10.1109/SGRE53517.2022.9774185
DO - 10.1109/SGRE53517.2022.9774185
M3 - Conference contribution
AN - SCOPUS:85130942209
T3 - 3rd International Conference on Smart Grid and Renewable Energy, SGRE 2022 - Proceedings
BT - 3rd International Conference on Smart Grid and Renewable Energy, SGRE 2022 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 3rd International Conference on Smart Grid and Renewable Energy, SGRE 2022
Y2 - 20 March 2022 through 22 March 2022
ER -