Single-Phase Rectifier with Cascaded-Transformer to Supply a Three-Phase Induction Motor with Open-End Windings

Authors

DOI:

https://doi.org/10.18618/REP.e202538

Keywords:

AC-DC-AC multilevel converters, cascaded-transformers converter, open-end winding induction motor, single-phase to three-phase

Abstract

This paper presents a single-phase to three-phase AC-DC-AC step-down converter with a symmetrical DC-link voltage ratio. The proposed converter architecture is well-suited for rural distribution grid applications, where a high-voltage single-phase grid is required to transmit energy over long distances while minimizing conduction losses. The converter consists of two cascaded H-bridge converters connected via transformers and two three-phase inverters supplying an open-end winding induction motor (OEWIM). The level-shifted pulse-width modulation (LSPWM) strategy is employed to synthesize the converter voltages. A proportional-integral (PI) controller regulates the overall DC-link voltages, while a hysteresis controller maintains the balance of the individual DC-link voltages. Additionally, a resonant PI controller ensures a sinusoidal grid current, and a Phase-Locked Loop (PLL) is used to achieve a high power factor in the grid. Compared to a conventional two-level leg topology, the proposed configuration reduces harmonic distortion and semiconductor power losses while ensuring a high power factor.
Simulation and experimental results validate the effectiveness of the PWM and control strategies.

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Author Biographies

Antônio D. D. Almeida, Instituto Federal de Educação, Ciência e Tecnologia Baiano

received his bachelor's degree in Electrical Engineering from the Federal Institute of Education, Science and Technology of Paraíba in 2018, and completed his master's degree in the same field at the Federal University of Paraíba in 2020. He is currently working toward his Ph.D. degree at the Federal University of Pernambuco. Since 2024, he has been working as a professor of Basic, Technical, and Technological Education in the field of Electrical Engineering at the Federal Institute of Education, Science and Technology of Bahia. His research interests include power electronic converters for application in energy storage for electric vehicles.

Bruna S. Gehrke, Universidade Federal da Paraíba

was born in Ijuí, Rio Grande do Sul, Brazil, in 1992. She received the B.S. degree in electrical engineering from the Regional University of Northeast of Rio Grande do Sul (UNIJUÍ), in 2016, and the M.S. and D.Sc. degrees in electrical engineering from the Federal University of Campina Grande, in 2019 and 2023, respectively. She is currently a Postdoctoral Researcher at the Federal University of Paraíba. Her research interests include multilevel converters, electrical drives, and modulation techniques.

Nady Rocha, Universidade Federal da Paraíba

was born in São Gabriel, Bahia, Brazil, in 1982. He received the B.S., M.S., and Ph.D. degrees in electrical engineering from the Federal University of Campina Grande, Campina Grande, Brazil, in 2006, 2008, and 2010, respectively. Since 2011, he has been with the Department of Electrical Engineering, Federal University of Paraíba, João Pessoa, where he is currently an Associate Professor of Electrical Engineering. His research interests include power electronics, renewable energy sources and electrical drives.

Edgard L. L. Fabricio, Instituto Federal de Educação Ciência e Tecnologia da Paraíba

was born in João Pessoa, Paraíba, Brazil, in 1986. He received the B.S., M.S., and Ph.D. degrees in electrical engineering from the Federal University of Campina Grande, Campina Grande, Brazil, in 2010, 2011, and 2015, respectively. Since March 2012, he has been with the Academic Unity of Control and Industrial Processes, Federal Institute of Paraíba, João Pessoa, Brazil, where he is currently a Professor of electrical engineering. His research interests include power electronics, energy systems, active power filter, and electrical drives.

Carolina A. Caldeira, Instituto Federal de Educação, Ciência e Tecnologia de Sergipe

received her bachelor's degree in Electrical Engineering from the Federal Institute of Education, Science and Technology of Paraíba in 2018, and completed her master's degree in the same field at the Federal University of Paraíba in 2020. She is currently working toward the Ph.D. in Electrical Engineering at the Federal University of Pernambuco. Since 2025, she has been working as a professor of Basic, Technical, and Technological Education in the field of Electrical Engineering at the Federal Institute of Education, Science and Technology of Sergipe. Her research interests include DC-DC and DC-AC converters applied to renewable energy systems.

Gleice M. S. Rodrigues, EDP Espírito Santo Energy Distribution SA

was born in Macapá, Amapá, Brazil, in 1992. She received the B.S. degree in electrical engineering from the Federal University of Amapá, Macapá, Brazil and the M.S. degree in electrical engineering from the Federal University of Paraíba, João Pessoa, Brazil, in 2018 and 2021, respectively. She is currently working as an expansion planning engineer for EDP Espírito Santo Energy Distribution SA, Espírito Santo, Brazil. Her research interests include energy distribution systems and renewable energy.

Isaac S. de Freitas, Universidade Federal da Paraíba

as born in Itaporanga, Brazil, in 1982. He earned his B.S., M.S., and Ph.D. degrees in Electrical Engineering from the Federal University of Campina Grande (UFCG), Campina Grande, Brazil, in 2004, 2005, and 2007, respectively. From 2006 to 2007, he was a Visiting Scholar at the Electric Machines and Power Electronics Laboratory at Texas A\&M University, College Station, USA. Between February and May 2008, he served as a professor at the Federal Center for Technological Education of Petrolina, Brazil. Later, from May to December 2008, he worked in the Department of Mechanical Engineering at the Federal University of Paraíba (UFPB), João Pessoa, Brazil. Since December 2008, he has been a faculty member in the Department of Electrical Engineering at the Federal University of Paraíba (UFPB), João Pessoa, Brazil, where he currently holds the position of Full Professor. His research focuses on power electronics and electrical drives. He is a member of the IEEE Power Electronics Society, IEEE Industrial Electronics Society, SBA - Brazilian Society of Automatics, and SOBRAEP - Brazilian Power Electronics Society.

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Published

2025-05-27

How to Cite

[1]
A. D. D. Almeida, “Single-Phase Rectifier with Cascaded-Transformer to Supply a Three-Phase Induction Motor with Open-End Windings”, Eletrônica de Potência, vol. 30, p. e202538, May 2025.

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Original Papers