Nonisolated High Step‐Up DC‐DC Ćuk Converter Based on Coupled Inductors
ABSTRACT This work presents a nonisolated high step‐up DC‐DC Ćuk converter, specifically designed for nanogrid applications. The proposed topology integrates a two‐winding coupled inductor and voltage multiplier cells (VMC) to extend the voltage gain and minimize the voltage stresses on the semiconductors. It also exhibits current source characteristics at both the input and output, distinguishing it from traditional boost‐based topologies. A comprehensive theoretical analysis is derived to establish a consolidated design procedure for the power stage elements. To validate the design, an experimental prototype with an input voltage of 24 V, output voltage of 380 V, and rated power of 200 W, operating at a switching frequency of 50 kHz, was tested in the laboratory, achieving a maximum efficiency of 95.3%.
Authors
- Francilino Carneiro de Araújo
- Edilson Mineiro Sá Junior (ORCID: https://orcid.org/0000-0002-7388-229X)
- Kleber C. A. De Souza (ORCID: https://orcid.org/0000-0002-2885-1574)
- Fernando Lessa Tofoli (ORCID: https://orcid.org/0000-0001-7313-9060)
- Marcus V. S. Costa (ORCID: https://orcid.org/0000-0002-2112-6433)
- Antônio Alisson Alencar Freitas (ORCID: https://orcid.org/0000-0002-2484-0990)
- Fernando Luiz Marcelo Antunes (ORCID: https://orcid.org/0000-0002-0564-4564)
- Manuel de Oliveira Vasconcelos Júnior
Institutions
- Federal University of São João del-Rei (BR)
- Universidade Federal do Ceará (BR)
- Instituto Federal de Educação, Ciência e Tecnologia do Ceará (BR)
- Universidade Federal Rural do Semi-Árido (BR)
Publication Details
- Journal
- International Journal of Circuit Theory and Applications
- Published
- 2025-06-30
- DOI
- https://doi.org/10.1002/cta.70045
- Primary Topic
- Advanced DC-DC Converters
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Coordenação de Aperfeiçoamento de Pessoal de Nível Superior