TY - GEN
T1 - Reverse Current Elimination for Capacitor Voltage Balanced Bidirectional Resonant Converter Using a Bidirectional Switch
AU - Seok, Hwasoo
AU - Kim, Jun Seok
AU - Kwon, Owon
AU - Kim, Minsung
N1 - Publisher Copyright:
© 2020 IEEE.
PY - 2020/3
Y1 - 2020/3
N2 - In this paper, we present an instantaneous reverse current elimination method for a capacitor voltage balanced bidirectional resonant converter operating in the backward operation. A conventional high step-up resonant converter with balanced capacitor voltage may suffer from a significant reverse current due to a large fluctuation of the resonant capacitor voltage in the backward operation. 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 reverse 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. As a result, the proposed bidirectional converter has high step-up/down capability, high efficiency, and balanced capacitor voltage. A 400-W converter prototype has been implemented to show the performance of the converter.
AB - In this paper, we present an instantaneous reverse current elimination method for a capacitor voltage balanced bidirectional resonant converter operating in the backward operation. A conventional high step-up resonant converter with balanced capacitor voltage may suffer from a significant reverse current due to a large fluctuation of the resonant capacitor voltage in the backward operation. 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 reverse 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. As a result, the proposed bidirectional converter has high step-up/down capability, high efficiency, and balanced capacitor voltage. A 400-W converter prototype has been implemented to show the performance of the converter.
KW - Balanced capacitor voltage
KW - conduction loss
KW - non-complementary modulation strategy
KW - reverse current
UR - http://www.scopus.com/inward/record.url?scp=85087782664&partnerID=8YFLogxK
U2 - 10.1109/APEC39645.2020.9124478
DO - 10.1109/APEC39645.2020.9124478
M3 - Conference contribution
AN - SCOPUS:85087782664
T3 - Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
SP - 1044
EP - 1050
BT - APEC 2020 - 35th Annual IEEE Applied Power Electronics Conference and Exposition
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 35th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2020
Y2 - 15 March 2020 through 19 March 2020
ER -