A Low-Current Ripple and Wide Voltage-Gain Range Bidirectional DC-DC Converter With Coupled Inductor

In this paper, a bidirectional dc-dc converter with coupled inductor is proposed. The proposed converter can achieve a wide voltage-gain range by turning the ratios of windings of the coupled inductor. Furthermore, the voltage stresses across the power switches are reduced. By employing a low-curren...

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Bibliographic Details
Published inIEEE transactions on power electronics Vol. 35; no. 2; pp. 1525 - 1535
Main Authors Zhang, Yun, Liu, Heyu, Li, Jing, Sumner, Mark
Format Journal Article
LanguageEnglish
Published New York IEEE 01.02.2020
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Bidirectional dc–dc converter
Capacitors
Coils (windings)
Converters
coupled inductor
DC-DC power converters
Electric potential
Fuel cells
high conversion ratio
High-voltage techniques
Inductors
Low voltage
low-current ripple (LCR) structure
low-voltage stress
Ripples
Stress
Switches
Voltage
wide voltage-gain range
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Summary:In this paper, a bidirectional dc-dc converter with coupled inductor is proposed. The proposed converter can achieve a wide voltage-gain range by turning the ratios of windings of the coupled inductor. Furthermore, the voltage stresses across the power switches are reduced. By employing a low-current ripple structure, a tiny input/output current ripple can be achieved, which can avoid larger filters. In addition, the common ground structure between the grounds of the input and the load sides can avoid extra d u /d t issues. A prototype rated at 400 W/300 V has been developed and the maximum efficiency of the proposed converter was measured as 94.2%. Experimental results are presented to validate the effectiveness of the proposed converter.
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2019.2921570