A Wide Conversion Ratio Bidirectional Modified SEPIC Converter With Nondissipative Current Snubber

被引：20

作者：

Hirth, Marcos Paulo ^{[1
]}

Gules, Roger ^{[1
]}

Illa Font, Carlos Henrique ^{[2
]}

机构：

[1] Univ Tecnol Fed Parana, CPGEI, BR-80230901 Curitiba, Parana, Brazil

[2] Univ Tecnol Fed Parana, BR-84017220 Ponta Grossa, Parana, Brazil

来源：

IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS | 2021年 / 9卷 / 02期

关键词：

Inductors; Topology; Switches; Capacitors; Stress; Semiconductor diodes; Switching loss; Converters; electric vehicles; power electronics;

D O I：

10.1109/JESTPE.2020.2966410

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A new wide conversion ratio bidirectional dc-dc converter based on the modified Single-ended primary-inductor converter (SEPIC) converter is presented in this article. A nondissipative current snubber is included in the proposed converter allowing the operation with zero current switching, obtaining reduced switching losses and high efficiency even using conventional MOSFETs. The converter presents intrinsic extended step-up and step-down voltage conversion ratios without extreme low or high duty-cycle and reduced voltage stress in all semiconductors. The theoretical analysis with the operation stages in the step-up and step-down modes, theoretical waveforms, and design procedure are presented and also a comparison with other bidirectional converter topologies. The experimental results are presented to verify the performance of the proposed converter with a 500-W prototype operating with V-1 = 48 V and V-2 = 300 V and efficiency higher than 95% in both operation modes.

引用

页码：1350 / 1360

页数：11

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