TY - GEN
T1 - New symmetrical bidirectional L3C resonant DC-DC converter with wide voltage range
AU - Kim, Minjae
AU - Noh, Shinyoung
AU - Choi, Sewan
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/5/10
Y1 - 2016/5/10
N2 - This paper proposes a new symmetrical bidirectional L3C resonant converter with wide voltage range. Due to the proposed symmetrical resonant tank with notch resonant characteristic, the proposed converter is capable of not only achieving soft switching of all switches in forward and backward modes but also operating in a narrow switching frequency range even under wide voltage range. Also, due to zero gain at the notch resonant frequency, the proposed converter does not suffer from increased current and voltage stresses of components during start-up. The current rating of the resonant capacitor does not increases as the load increases and can further be reduced by adjusting the tertiary turn ratio of the transformer, making the proposed converter more realizable in high power application. Experimental results from a 3kW prototype are provided to validate the proposed concept.
AB - This paper proposes a new symmetrical bidirectional L3C resonant converter with wide voltage range. Due to the proposed symmetrical resonant tank with notch resonant characteristic, the proposed converter is capable of not only achieving soft switching of all switches in forward and backward modes but also operating in a narrow switching frequency range even under wide voltage range. Also, due to zero gain at the notch resonant frequency, the proposed converter does not suffer from increased current and voltage stresses of components during start-up. The current rating of the resonant capacitor does not increases as the load increases and can further be reduced by adjusting the tertiary turn ratio of the transformer, making the proposed converter more realizable in high power application. Experimental results from a 3kW prototype are provided to validate the proposed concept.
KW - bidirectional resonant converter
KW - soft switching
KW - symmetrical resonant tank
KW - wide voltage range
UR - http://www.scopus.com/inward/record.url?scp=84973616530&partnerID=8YFLogxK
U2 - 10.1109/APEC.2016.7467972
DO - 10.1109/APEC.2016.7467972
M3 - Conference contribution
AN - SCOPUS:84973616530
T3 - Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
SP - 859
EP - 863
BT - 2016 IEEE Applied Power Electronics Conference and Exposition, APEC 2016
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 31st Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2016
Y2 - 20 March 2016 through 24 March 2016
ER -