Analysis and design of an interleaved current-fed high step-up quasi-resonant DC-DC converter for fuel cell applications

Authors

SINA SALEHI
BEHROOZ VAHIDI
JAFAR MILIMONFARED
MAGHDAD TAHERI
HADI MORADI

DOI

10.3906/elk-1306-111

Abstract

This paper proposes a current-fed quasi-resonant converter with soft switching method. Input current ripple is reduced by employing two boost circuits at the input, which makes this converter appropriate for fuel cell application. Current stress on switches is reduced because of the resonance in switches, and also, as a result of zero voltage switching in switches, switching losses will be reduced in this proposed converter. In the output, the reverse recovery problem of diodes is alleviated by zero current switching, so there is no need for fast diodes anymore. The reduction of losses improves the efficiency, and in a wide range of load, efficiency is high. Experimental results on a 1-kW prototype are provided to validate the proposed concept.

Keywords

Current-fed, fuel cells, isolated boost converter, quasi-resonant DC-DC converter, zero-voltage switching

First Page

2182

Last Page

2196

Recommended Citation

SALEHI, SINA; VAHIDI, BEHROOZ; MILIMONFARED, JAFAR; TAHERI, MAGHDAD; and MORADI, HADI (2015) "Analysis and design of an interleaved current-fed high step-up quasi-resonant DC-DC converter for fuel cell applications," Turkish Journal of Electrical Engineering and Computer Sciences: Vol. 23: No. 7, Article 12. https://doi.org/10.3906/elk-1306-111
Available at: https://journals.tubitak.gov.tr/elektrik/vol23/iss7/12