Modified Sepic ZVRT Converter With Serial Magnetic Coupling and Voltage Multiplier Cell

Authors

DOI:

https://doi.org/10.18618/REP.2005.1.013018

Keywords:

dc-dc converters, soft-switching, renewable energy, high voltage gain

Abstract

This paper presents a high voltage gain dc-dc converter operating with soft switching, high switching frequency, and reduced voltage stress in all semiconductors, which is suitable for applications as renewable energy sources. The proposed topology uses the coupled inductor and voltage multiplier cell techniques to obtain high voltage gain. The switch turn-on and turn-off occur with zero voltage switching (ZVS). The soft-switching range is independent of the load and is maintained from nominal output power to light load operation with reduced conduction losses. The theoretical analysis and experimental results of a prototype with 94.55% efficiency at nominal output power (200 W) operating with voltage gain equal to 15 times are presented in this paper.

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Author Biographies

Fabio Inocencio Kravetz, Universidade Tecnológica Federal do Paraná, Curitiba – Paraná, Brasil

was born in Wenceslau Braz, Paraná, Brazil, in 1982. He received the B.S. degree in electrical engineering, emphasis on electronics and telecommunications from the Federal University of Technology—Paraná (UTFPR), Curitiba, Brazil, in 2014, and the M.S. and Ph.D. degrees from the Federal University of Technology—Paraná (UTFPR), in 2018 and 2023, respectively. His research interests include renewable energy applications and power electronics.

Roger Gules, Universidade Tecnológica Federal do Paraná, Curitiba – Paraná, Brasil

was born in Bento Gonçalves, Brazil, in 1971. He received the B.S. degree from the Federal University of Santa Maria (UFSM), Santa Maria, Brazil, in 1995, and the M.S. and Ph.D. degrees from the Federal University of Santa Catarina (UFSC), Florianopolis, Brazil, in 1998 and 2001, respectively. From 2001 to 2005, he was a Professor at the Universidade do Vale do Rio dos Sinos, São Leopoldo, Brazil. Since 2006, he has been a Professor at the Federal University of Technology (UTFPR)—Paraná, Curitiba, Brazil. His research interests include high-frequency power conversion, renewable energy applications, and high-power factor rectifiers. Dr. Gules is a member of the Brazilian Power Electronic Society, IEEE Power Electronics Society, and IEEE Industrial Electronics Society.

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Published

2024-05-28

How to Cite

[1]
F. I. Kravetz and R. Gules, “Modified Sepic ZVRT Converter With Serial Magnetic Coupling and Voltage Multiplier Cell”, Eletrônica de Potência, vol. 29, p. e202411, May 2024.

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Original Papers