TY - JOUR
T1 - Partial-Power Converter Topology of Type II for Efficient Electric Vehicle Fast Charging
AU - Rivera, Sebastian
AU - Rojas, Julian
AU - Kouro, Samir
AU - Lehn, Peter W.
AU - Lizana, Ricardo
AU - Renaudineau, Hugues
AU - Dragicevic, Tomislav
PY - 2022
Y1 - 2022
N2 - The increasing power levels handled by electric vehicle (EV) dc fast chargers will impose additional challenges to the switching devices in order to cope with the efficiency requirements. A cost-effective alternative to achieve highly efficient power conversion is through the partial-power conversion concept. This article validates the advantages of a step-down Type II partial-power converter (PPC), based on the phase-shifted full-bridge converter, for EV fast chargers. By exploiting the reduced voltage range of an EV battery pack along with the reduced power ratio for a Type II PPC, an extremely efficient charging process can be achieved. The concept is validated with the development of a 7-kW demonstrator, and hence, realistic efficiency measurements are obtained. Results indicate the effectiveness of charging a battery by merely handling 13.32% of the power provided to it, with a peak efficiency of 99.11%.
AB - The increasing power levels handled by electric vehicle (EV) dc fast chargers will impose additional challenges to the switching devices in order to cope with the efficiency requirements. A cost-effective alternative to achieve highly efficient power conversion is through the partial-power conversion concept. This article validates the advantages of a step-down Type II partial-power converter (PPC), based on the phase-shifted full-bridge converter, for EV fast chargers. By exploiting the reduced voltage range of an EV battery pack along with the reduced power ratio for a Type II PPC, an extremely efficient charging process can be achieved. The concept is validated with the development of a 7-kW demonstrator, and hence, realistic efficiency measurements are obtained. Results indicate the effectiveness of charging a battery by merely handling 13.32% of the power provided to it, with a peak efficiency of 99.11%.
KW - Battery charging
KW - dc-dc power conversion
KW - fast charger
KW - high efficiency
KW - partial-power converters (PPCs)
UR - http://www.scopus.com/inward/record.url?scp=85119578947&partnerID=8YFLogxK
U2 - 10.1109/JESTPE.2021.3117910
DO - 10.1109/JESTPE.2021.3117910
M3 - Article
AN - SCOPUS:85119578947
SN - 2168-6777
VL - 10
SP - 7839
EP - 7848
JO - IEEE Journal of Emerging and Selected Topics in Power Electronics
JF - IEEE Journal of Emerging and Selected Topics in Power Electronics
IS - 6
ER -