Generation of Dc-dc Converters With Wide Conversion Range Based on the Multistate Switching Cell

George H. de A. Bastos; Jefferson M. de Sousa; Levy F. Costa; René P. T. Bascopé

doi:10.18618/REP.2016.1.2588

Authors

George H. de A. Bastos Electrical Engineering Department, Federal University of Ceará, Fortaleza – CE, Brasil
Jefferson M. de Sousa Electrical Engineering Department, Federal University of Ceará, Fortaleza – CE, Brasil
Levy F. Costa Electrical Engineering Department, Federal University of Ceará, Fortaleza – CE, Brasil
René P. T. Bascopé Electrical Engineering Department, Federal University of Ceará, Fortaleza – CE, Brasil

DOI:

https://doi.org/10.18618/REP.2016.1.2588

Keywords:

Multi-state switching cell (MSSC), Nonisolated dc-dc boost converter, Wide conversion range converters

Abstract

This paper presents the conception of six nonisolated dc-dc converters with wide conversion range based on the multistate switching cell (WCR-MSSC). In order to achieve wide conversion range, the multiphase transformer that is part of the multistate switching cell (MSSC) aggregates coupled secondary windings with controlled rectifiers, which are then connected in series. Then, it is possible to minimize the voltage stresses across the switches, allowing the use of MOSFETs (metal oxide semiconductor field effect transistor) with reduced on-resistance RDS(on), thus implying the significant improvement of the converter efficiency. The operation principle, qualitative analysis, quantitative analysis, and design procedure are properly presented. An experimental prototype is also developed, whose ratings are: output power PO=3 kW, input voltage VIN=84 V and output voltage VO=400 V. Some important results are then discussed in order to validate the theoretical assumptions.

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Author Biographies

George H. de A. Bastos, Electrical Engineering Department, Federal University of Ceará, Fortaleza – CE, Brasil

was born in Crato-CE, Brazil. He received the B.Sc. and M.Sc. degrees in electrical engineering from the Federal University of Ceará (UFC), Fortaleza, Brazil, in 2001 and 2005, respectively. He is currently a professor with the Federal Institute of Ceará (IFCE), Caucaia, Ceará, Brazil. His main research interests include power supplies, power factor correction techniques, uninterruptible power supplies, and renewable energy systems. Mr. Bastos is a student member of the Brazilian Society of Power Electronics (SOBRAEP).

Jefferson M. de Sousa, Electrical Engineering Department, Federal University of Ceará, Fortaleza – CE, Brasil

was born in Ceará, Brazil. He has been an undergraduate student with the Department of Electrical Engineering at the Federal University of Ceará, Fortaleza, Brazil since 2012. Currently, he is scientific initiation student with scholarship provided by Brazilian funding agency CNPq. His main interest areas include power supplies, uninterruptible power supplies, and renewable energy systems.

Levy F. Costa, Electrical Engineering Department, Federal University of Ceará, Fortaleza – CE, Brasil

was born in Fortaleza, Ceará, Brazil, in 1986. He received the B.Sc. degree in electrical engineering from the Federal University of Ceará (UFC), Fortaleza, Brazil, in 2010, and the M.Sc. degree in electrical engineering from the Federal University of Santa Catarina, Florianópolis, Brazil in 2013. He worked as a R&D engineer at Schneider Electric in 2013 and 2014. He is currently pursuing the PhD degree in electrical engineering at the Christian-Albrechts-University, Kiel, Germany. His main research interests include power supplies, power factor correction techniques, uninterruptible power supplies, and renewable energy systems. Mr. Costa is a student member of the Brazilian Society of Power Electronics (SOBRAEP).

René P. T. Bascopé, Electrical Engineering Department, Federal University of Ceará, Fortaleza – CE, Brasil

received the B.Sc. degree in electrical engineering from San Simón University, Cochabamba, Bolívia, in 1992, and the M.Sc. and Dr. Eng. degrees in electrical engineering from the Federal University of Santa Catarina, Florianópolis, Brazil, in 1994 and 2000, respectively. Currently, he is an associate professor with the Department of Electrical Engineering, Federal University of Ceará, Fortaleza, Brazil. His main research interests include power supplies, power factor correction techniques, uninterruptible power supplies, and renewable energy systems. He is also a reviewer for several IEEE journals and a professional member of the Brazilian Society of Power Electronics (SOBRAEP).

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