TY - GEN
T1 - Single-stage electrolytic capacitor-less AC-DC converter with high frequency isolation for EV charger
AU - Kim, Byeongwoo
AU - Kim, Minjae
AU - Choi, Sewan
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/7/13
Y1 - 2016/7/13
N2 - This paper proposes a new single-stage ac-dc converter with high frequency isolation which is suitable for on-board EV/PHEV chargers. The proposed single-stage structure does not have a diode bridge at the input stage and electrolytic capacitor at the dc-link. The two single-phase full-bridge converters play a double role as both ac-dc converter for PFC and the primary-side circuit of the isolated dc-dc converter. They are configured such that the fundamental components of the chopped ac voltages are cancelled at the primary winding voltage of the transformer, thus reducing magnitude of the magnetizing current which results in reduced volume and core loss. Also, the proposed converter can achieve ZVS turn on of switches and ZCS turn off of diodes. A 3-kW prototype of the proposed converter is built and tested to verify the validity of the proposed operation.
AB - This paper proposes a new single-stage ac-dc converter with high frequency isolation which is suitable for on-board EV/PHEV chargers. The proposed single-stage structure does not have a diode bridge at the input stage and electrolytic capacitor at the dc-link. The two single-phase full-bridge converters play a double role as both ac-dc converter for PFC and the primary-side circuit of the isolated dc-dc converter. They are configured such that the fundamental components of the chopped ac voltages are cancelled at the primary winding voltage of the transformer, thus reducing magnitude of the magnetizing current which results in reduced volume and core loss. Also, the proposed converter can achieve ZVS turn on of switches and ZCS turn off of diodes. A 3-kW prototype of the proposed converter is built and tested to verify the validity of the proposed operation.
KW - ac-dc converter
KW - electrolytic capacitor-less
KW - EV charger
KW - high frequency isolation
KW - Sinlge-stage
UR - http://www.scopus.com/inward/record.url?scp=84983319626&partnerID=8YFLogxK
U2 - 10.1109/IPEMC.2016.7512291
DO - 10.1109/IPEMC.2016.7512291
M3 - Conference contribution
AN - SCOPUS:84983319626
T3 - 2016 IEEE 8th International Power Electronics and Motion Control Conference, IPEMC-ECCE Asia 2016
SP - 234
EP - 238
BT - 2016 IEEE 8th International Power Electronics and Motion Control Conference, IPEMC-ECCE Asia 2016
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 8th IEEE International Power Electronics and Motion Control Conference, IPEMC-ECCE Asia 2016
Y2 - 22 May 2016 through 26 May 2016
ER -
