TY - GEN
T1 - Cascaded Dual-Buck AC-AC Converter Using Coupled Inductors
AU - Kim, Sanghun
AU - Jang, Duekjin
AU - Kim, Heung Geun
AU - Cha, Honnyong
N1 - Publisher Copyright:
© 2018 IEEJ Industry Application Society.
PY - 2018/10/22
Y1 - 2018/10/22
N2 - A cascaded dual-buck ac-ac converter (CDBAC) possesses no shoot-through worries, no commutation problem, and can enhance efficiency by using power MOSFETs. The main drawback of a CDBAC is the use of more inductors than traditional cascaded multilevel ac-ac converter, which decreases the power density and increases the system cost. This paper presents a modified CDBAC using coupled inductors. In the proposed converter, the limiting inductors connected between units are integrated with one core. Because they share the current path where output inductor current is flowing. As a result, the total inductance, inductor footprints, and magnetic volume can all be reduced. To demonstrate the advantages of the proposed converter, the topology derivation, operation, and experimental results are presented.
AB - A cascaded dual-buck ac-ac converter (CDBAC) possesses no shoot-through worries, no commutation problem, and can enhance efficiency by using power MOSFETs. The main drawback of a CDBAC is the use of more inductors than traditional cascaded multilevel ac-ac converter, which decreases the power density and increases the system cost. This paper presents a modified CDBAC using coupled inductors. In the proposed converter, the limiting inductors connected between units are integrated with one core. Because they share the current path where output inductor current is flowing. As a result, the total inductance, inductor footprints, and magnetic volume can all be reduced. To demonstrate the advantages of the proposed converter, the topology derivation, operation, and experimental results are presented.
KW - coupled inductor
KW - direct PWM ac-ac converter
KW - dual-buck converter
KW - switching cell
UR - http://www.scopus.com/inward/record.url?scp=85057340228&partnerID=8YFLogxK
U2 - 10.23919/IPEC.2018.8507637
DO - 10.23919/IPEC.2018.8507637
M3 - Conference contribution
AN - SCOPUS:85057340228
T3 - 2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018
SP - 2619
EP - 2624
BT - 2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 8th International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018
Y2 - 20 May 2018 through 24 May 2018
ER -