Mobile QR Code QR CODE : The Korean Institute of Power Electronics
Title Multi-Mode Single Inductor Converter for DC Grid System with a Battery
Authors Ji-Yeon Kim ; Jae-Kuk Kim
DOI 10.6113/TKPE.2020.25.5.343
Page pp.343-349
ISSN 1229-2214
Keywords Battery; DC/DC converter; DC grid system; Multi-mode; Single inductor
Abstract This study proposes a new single inductor converter for DC grid systems. A conventional system is composed of two independent converters for controlling battery and load. This system is simple but it has two inductors that affect power density and efficiency. The proposed converter can reduce the number of inductors by integrating the two converters and relieve voltage stress on switches by using a battery switching cell. Accordingly, power density and efficiency can be improved using a single inductor and lower voltage-rated switches. A prototype of a 500 W converter is built, and each mode is experimented on to confirm the validity of the proposed converter.