TY - GEN
T1 - An integrated onboard charger and accessory power converter using WBG devices
AU - Su, Gui Jia
AU - Tang, Lixin
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/10/27
Y1 - 2015/10/27
N2 - Integrating the function of onboard battery charging into the traction drive system and accessory dc-dc converter in plug-in electric vehicles (PEVs) is shown to significantly reduce the cost and increase the power density of onboard chargers due to a substantially reduced component count. Replacing silicon (Si) based power devices with wide-band-gap (WBG) devices can further increase the power density and efficiency and lower the cost as WBG device technology matures and production volume increases. This paper presents a bidirectional integrated onboard charger (OBC) and accessory power converter using silicon carbide (SiC) MOSFETs and Schottky Barrier Diodes (SBDs). The galvanically isolated integrated OBC is formed by using the segmented traction drive system of a PEV as the frond converter and a phase shifted dual-active full-bridge converter (PHDAFBC) that is comprised of the transformer and high voltage converter of the 14 V accessory dc-dc converter and an additional full-bridge converter. Experimental results for a 6.8 kW OBC prototype that is implemented on a 90 kW segmented SiC traction inverter and a 6.8 kW SiC PHDAFBC is included.
AB - Integrating the function of onboard battery charging into the traction drive system and accessory dc-dc converter in plug-in electric vehicles (PEVs) is shown to significantly reduce the cost and increase the power density of onboard chargers due to a substantially reduced component count. Replacing silicon (Si) based power devices with wide-band-gap (WBG) devices can further increase the power density and efficiency and lower the cost as WBG device technology matures and production volume increases. This paper presents a bidirectional integrated onboard charger (OBC) and accessory power converter using silicon carbide (SiC) MOSFETs and Schottky Barrier Diodes (SBDs). The galvanically isolated integrated OBC is formed by using the segmented traction drive system of a PEV as the frond converter and a phase shifted dual-active full-bridge converter (PHDAFBC) that is comprised of the transformer and high voltage converter of the 14 V accessory dc-dc converter and an additional full-bridge converter. Experimental results for a 6.8 kW OBC prototype that is implemented on a 90 kW segmented SiC traction inverter and a 6.8 kW SiC PHDAFBC is included.
UR - http://www.scopus.com/inward/record.url?scp=84963625798&partnerID=8YFLogxK
U2 - 10.1109/ECCE.2015.7310544
DO - 10.1109/ECCE.2015.7310544
M3 - Conference contribution
AN - SCOPUS:84963625798
T3 - 2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015
SP - 6306
EP - 6313
BT - 2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015
Y2 - 20 September 2015 through 24 September 2015
ER -
