Title :
Bidirectional cascaded quasi-Z-source DC-DC converter
Author :
Sato, Takaharu ; Shimo, Takayuki ; Takiguchi, Taro ; Koizumi, Hirotaka
Author_Institution :
Dept. of Electr. Eng., Tokyo Univ. of Sci., Tokyo, Japan
Abstract :
This paper proposes bidirectional cascaded quasi-Z-source dc-dc converter (BC-qZSC). Compared to the traditional cascaded quasi-Z-source network (C-qZSN), the diodes in C-qZSN are replaced by active switches with a parallel diode. BC-qZSC has the higher boost ability and the lower input current ripple than those of the bidirectional quasi-Z-source dc-dc converter (B-qZSC). In this paper, the operational principle, analysis, and experiment results of BC-qZSC are shown. Also, those of the voltage-fed B-qZSC in the regeneration mode are shown in order to compare BC-qZSC with B-qZSC.
Keywords :
DC-DC power convertors; B-qZSC; BC-qZSC; active switches; bidirectional cascaded quasi-Z-source DC-DC converter; parallel diode; Batteries; Capacitors; DC-DC power converters; Equations; Inductors; Inverters; Switches; Bidirectional converter; High boost ratio; Quasi-Z-souce converter;
Conference_Titel :
Industrial Electronics Society, IECON 2014 - 40th Annual Conference of the IEEE
DOI :
10.1109/IECON.2014.7048665
