High step‐up high step‐down bidirectional DC/DC converter. Issue 12 (18th August 2017)

• Record Type: Journal Article
• Authors: Babaei, Ebrahim; Saadatizadeh, Zahra; Cecati, Carlo
• Is Part Of: IET power electronics. Volume 10:Issue 12(2017)
• Page Start: 1556
• Page End: 1571
• Publication Date: 2017-08-18
• Subjects: DC‐DC power convertors; PSCAD‐EMTDC simulation -- operating modes -- voltage stresses -- current stresses -- high‐voltage gain boost converters -- buck operations -- boost operations -- switched capacitor circuit -- coupled inductors -- voltage conversion ratio -- bidirectional dc‐dc converter -- high step‐up high step‐down converter; Power electronics -- Periodicals; 621.31705
• DOI: 10.1049/iet-pel.2016.0977
• Languages: English
• ISSNs: 1755-4535

Abstract

Abstract : In this study, a new high step‐up high step‐down bidirectional dc–dc converter is proposed. In the proposed converter, the voltage conversion ratio is increased by using two coupled inductors and switched capacitor circuit in both boost and buck operations. The proposed bidirectional converter in comparison with other presented high‐voltage gain boost converters with two coupled inductors in the literature has the highest voltage conversion ratio. In this study, the proposed topology is analysed in all operating modes and the current and voltage stresses of all switches, voltage gain and maximum and minimum current through the inductors are calculated for both boost and buck operations. Finally, the accuracy of the obtained analytical results and correct operation of the proposed converter are verified through PSCAD/EMTDC simulation and experimental results.