TY - GEN
T1 - Instantaneous reactive power reduction of ripple-free resonant buck converter using bidirectional switch
AU - Seok, Hwasoo
AU - Jeong, Seo Gwang
AU - Kim, Kwang Seop
AU - Junyent-Ferre, Adria
AU - Cha, Honnyong
AU - Kim, Minsung
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/5/24
Y1 - 2019/5/24
N2 - This paper presents an instantaneous reactive power reduction method for rippleless resonant bidirectional converter in backward operation. The method is applied to improve an existing converter topology that features high step-up/down capability, high efficiency and zero input ripple. The original topology suffers from significant reverse current when transferring power backwards under synchronous rectification. By adding a single bidirectional switch in the circuit, we are able to block the reverse current in the backward operation, which dramatically reduces the circulating current and current stress on the switch. A non-complementary modulation strategy for the bidirectional switch is developed to further reduce the conduction loss, which comes from the use of the bidirectional switch. A 600-W converter prototype has been implemented to show the performance of the converter.
AB - This paper presents an instantaneous reactive power reduction method for rippleless resonant bidirectional converter in backward operation. The method is applied to improve an existing converter topology that features high step-up/down capability, high efficiency and zero input ripple. The original topology suffers from significant reverse current when transferring power backwards under synchronous rectification. By adding a single bidirectional switch in the circuit, we are able to block the reverse current in the backward operation, which dramatically reduces the circulating current and current stress on the switch. A non-complementary modulation strategy for the bidirectional switch is developed to further reduce the conduction loss, which comes from the use of the bidirectional switch. A 600-W converter prototype has been implemented to show the performance of the converter.
KW - Conduction loss
KW - Input current ripple
KW - Non-complementary modulation strategy
KW - Reactive power blocking
KW - Synchronous rectification
UR - http://www.scopus.com/inward/record.url?scp=85067108649&partnerID=8YFLogxK
U2 - 10.1109/APEC.2019.8721911
DO - 10.1109/APEC.2019.8721911
M3 - Conference contribution
AN - SCOPUS:85067108649
T3 - Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
SP - 3174
EP - 3179
BT - 34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019
Y2 - 17 March 2019 through 21 March 2019
ER -