TY - GEN
T1 - Pseudo-Partial-Power Converter without High Frequency Transformer for Electric Vehicle Fast Charging Stations
AU - Rivera, Sebastian
AU - Pesantez, Daniel
AU - Kouro, Samir
AU - Lehn, Peter W.
PY - 2018/12/3
Y1 - 2018/12/3
N2 - This paper presents a new partial power converter (PPC) for the DC-DC stage of electric vehicle (EV) fast charging stations. The proposed converter handles only a fraction of the total power delivered from the grid to the battery, increasing the overall system efficiency and power density, while potentially reducing the cost of the charger. The proposed topology is based on a switched capacitor between the AC terminals of an H-bridge converter, and does not require high frequency isolation transformers to provide a controllable voltage source between the DC-link and the battery. The proposed concept can be implemented using interleaved power cells, which can improve the power quality, reduce inductor size, and enable scalability for higher power rating chargers. The operating principle, partial operation analysis, control scheme, and simulation results are presented to validate the proposed concept.
AB - This paper presents a new partial power converter (PPC) for the DC-DC stage of electric vehicle (EV) fast charging stations. The proposed converter handles only a fraction of the total power delivered from the grid to the battery, increasing the overall system efficiency and power density, while potentially reducing the cost of the charger. The proposed topology is based on a switched capacitor between the AC terminals of an H-bridge converter, and does not require high frequency isolation transformers to provide a controllable voltage source between the DC-link and the battery. The proposed concept can be implemented using interleaved power cells, which can improve the power quality, reduce inductor size, and enable scalability for higher power rating chargers. The operating principle, partial operation analysis, control scheme, and simulation results are presented to validate the proposed concept.
KW - Electric Vehicles
KW - Fast Charging
KW - Partial Power Processing
UR - http://www.scopus.com/inward/record.url?scp=85060306693&partnerID=8YFLogxK
U2 - 10.1109/ECCE.2018.8558238
DO - 10.1109/ECCE.2018.8558238
M3 - Conference contribution
AN - SCOPUS:85060306693
T3 - 2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018
SP - 1208
EP - 1213
BT - 2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018
PB - IEEE
T2 - 10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018
Y2 - 23 September 2018 through 27 September 2018
ER -
