TY - JOUR
T1 - A 32 kW Power-Dense Six-Phase Dual-Interleaved DC-DC Buck-Boost Converter with Three Interphase Transformer
AU - Velazquez-Elizondo, Pedro Enrique
AU - Araujo-Vargas, Ismael
AU - Cervantes, Ilse
AU - Cano-Pulido, Kevin
AU - Hernandez-Nochebuena, Marco Antonio
N1 - Publisher Copyright:
© 2013 IEEE.
PY - 2022
Y1 - 2022
N2 - This article presents a power-dense, six-phase dual-interleaved DC-DC Buck-Boost converter for electric/hybrid vehicle applications. This converter uses six hard-switched arms at 75 kHz, three dual-interleaved interphase transformers together with three common inductors and two filter capacitors at the input and output. The steady-state current ripple frequency of the common inductors is twice the switching frequency due to the dual interleaving in the interphase transformers. The resultant ripple current frequency of the input and output filters is six times the switching frequency; size and weight reduction of the passive components are obtained due to this frequency increase. The design and construction details of a 32 kW, 315-385 V supply, SiC-based prototype are presented along with experimental investigation. The prototype converter was successfully operated up to full load with a 350 V output, being the phase currents relatively balanced in the continuous conduction mode without a closed-loop control system. The prototype efficiency is 98 % at full load, being the gravimetric power density 7.56 kW/kg.
AB - This article presents a power-dense, six-phase dual-interleaved DC-DC Buck-Boost converter for electric/hybrid vehicle applications. This converter uses six hard-switched arms at 75 kHz, three dual-interleaved interphase transformers together with three common inductors and two filter capacitors at the input and output. The steady-state current ripple frequency of the common inductors is twice the switching frequency due to the dual interleaving in the interphase transformers. The resultant ripple current frequency of the input and output filters is six times the switching frequency; size and weight reduction of the passive components are obtained due to this frequency increase. The design and construction details of a 32 kW, 315-385 V supply, SiC-based prototype are presented along with experimental investigation. The prototype converter was successfully operated up to full load with a 350 V output, being the phase currents relatively balanced in the continuous conduction mode without a closed-loop control system. The prototype efficiency is 98 % at full load, being the gravimetric power density 7.56 kW/kg.
KW - Buck-boost converter
KW - dual-interleaved
KW - high-power density
KW - interphase transformer
UR - http://www.scopus.com/inward/record.url?scp=85144777402&partnerID=8YFLogxK
U2 - 10.1109/ACCESS.2022.3229398
DO - 10.1109/ACCESS.2022.3229398
M3 - Artículo
AN - SCOPUS:85144777402
SN - 2169-3536
VL - 10
SP - 130880
EP - 130893
JO - IEEE Access
JF - IEEE Access
ER -