TY - GEN
T1 - Three-phase Single-stage Bi-directional Electrolytic Capacitor-less AC-DC converter with minimum switch count
AU - Jeong, Hyeonju
AU - Lee, Jaeyeon
AU - Song, Taehyung
AU - Choi, Sewan
N1 - Publisher Copyright:
© 2021 IEEE.
PY - 2021/5/24
Y1 - 2021/5/24
N2 - The paper proposes single-stage three-phase bidirectional ac-dc converter with high frequency isolation. The proposed converter is composed of a three-phase PWM converter and a three-phase dual active bridge (DAB) converter through circuit integration. The low frequency component that is inevitably generated in the process of ac-dc power conversion is absorbed by low frequency blocking capacitor (LFBC) connected in series with the transformer wingding, and the low frequency component is almost not applied to transformer, resulting in enabling high frequency isolation. Also, power factor correction (PFC) and bidirectional power control are performed by two control variables, amplitude modulation index and phase shift angle, and soft switching of all switching devices is possible even in continuous conduction mode (CCM) operation. A prototype was built and experimental results are obtained and discussed in order to verify validity of proposed concept.
AB - The paper proposes single-stage three-phase bidirectional ac-dc converter with high frequency isolation. The proposed converter is composed of a three-phase PWM converter and a three-phase dual active bridge (DAB) converter through circuit integration. The low frequency component that is inevitably generated in the process of ac-dc power conversion is absorbed by low frequency blocking capacitor (LFBC) connected in series with the transformer wingding, and the low frequency component is almost not applied to transformer, resulting in enabling high frequency isolation. Also, power factor correction (PFC) and bidirectional power control are performed by two control variables, amplitude modulation index and phase shift angle, and soft switching of all switching devices is possible even in continuous conduction mode (CCM) operation. A prototype was built and experimental results are obtained and discussed in order to verify validity of proposed concept.
KW - high frequency isolation
KW - insert
KW - Single-stage conversion
KW - soft-switching
KW - styling
UR - http://www.scopus.com/inward/record.url?scp=85114214100&partnerID=8YFLogxK
U2 - 10.1109/ECCE-Asia49820.2021.9479415
DO - 10.1109/ECCE-Asia49820.2021.9479415
M3 - Conference contribution
AN - SCOPUS:85114214100
T3 - Proceedings of the Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021
SP - 2011
EP - 2015
BT - Proceedings of the Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 12th IEEE Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021
Y2 - 24 May 2021 through 27 May 2021
ER -