Switch-Level Interleaved Converter: Circuit Operation, Output Ripple and Circulating Current

Vítor H. M. Biajo; Gideon I. C. Lobato; Sidelmo M. Silva

doi:10.18618/REP.e202454

Authors

Vítor H. M. Biajo Universidade Federal de Minas Gerais https://orcid.org/0000-0003-4682-5414
Gideon I. C. Lobato Universidade Federal de Minas Gerais
Sidelmo M. Silva Universidade Federal de Minas Gerais https://orcid.org/0000-0002-7491-832X

DOI:

https://doi.org/10.18618/REP.e202454

Keywords:

DC-AC conversion, pulse-width modulation, single-phase inverters, interleaved converters

Abstract

This paper discusses an interleaved converter topology for DC-AC conversion in power electronics applications. The proposed topology leverages a switch-level interleaving technique to overcome the limitations of conventional interleaved inverters. Through comprehensive analysis and simulation studies, it is demonstrated that the interleaved inverter achieves higher power density and improved ripple frequency as compared to conventional counterparts. In this paper, different figures of merit are considered in order to assess the proposed converter scheme performance such as current ripple parameters, circulating current and semiconductor losses. One of the main advantages of the proposed technology over conventional interleaving converters is the use of a single inductor, which enables its use not only in grid-tied applications but also in electric drives.

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Author Biographies

Vítor H. M. Biajo, Universidade Federal de Minas Gerais

received his bachelor's degree in Electrical Engineering in 2020 and his master's degree in Electrical Engineering with an emphasis on Power Electronics in 2024 from the Federal University of Minas Gerais, Belo Horizonte, Brazil. He also studied Electrical Engineering and Sustainable Development at the École Supérieure d'Ingénieurs en Électrotechnique et Électronique d'Amiens, in France. Vítor has experience in powertrain controls and power electronics systems integration applied to electrification technologies. He is currently an Electric Propulsion Engineer at Eve Air Mobility, an Embraer company.

Gideon I. C. Lobato, Universidade Federal de Minas Gerais

received the B.S. degree in electrical engineering from the Centro Federal de Educação Tecnológica de Minas Gerais, Belo Horizonte, MG, in 2009, and the M.S. degree in electrical engineering from the Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, MG, in 2015, where he is currently working toward the Ph.D. degree in electrical engineering. He is currently a lead power electronics engineer at GE Power Conversion, Pittsburgh-US. His research interests include applications of power electronics in electric power systems, energy conversion, power quality analysis and enhancement, and renewable energy.

Sidelmo M. Silva, Universidade Federal de Minas Gerais

received the graduation degree in electrical engineering (with a gold medal for the highest GPA), and the master's and Doctoral degrees in electrical engineering from the Federal University of Minas Gerais (UFMG), Belo Horizonte, Brazil, in 1997, 1999, and 2003, respectively. From 2001 to 2002, he was with the Development Department of ABB Switzerland, Turgi, as a System and Controls Engineer. From 2017 to 2018, he was a Visiting Scholar with the University of Wisconsin-Madison, Madison, WI, USA, where he was with microgrids. He is currently a full Professor with the Department of Electrical Engineering, Federal University of Minas Gerais. His research interests include power quality, applications of power electronics in electric power systems, microgrids, and renewable energy Generation.

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