12-Pulse Rectifier with Two DCM Boost-Type Half-Controlled Bridges for Variable- Input-Frequency Applications

João Carlos Pelicer Junior; Angelo César r de Lourenço; Luis De Oro Arenas; Falcondes José Mendes de Seixas

doi:10.18618/REP.2021.4.0017

Authors

João Carlos Pelicer Junior Federal Institute of São Paulo - IFSP, Sorocaba - SP, Brazil
Angelo César r de Lourenço Federal Institute of Education, Science, and Technology of Mato Grosso do Sul, Campo Grande - MS, Brazil
Luis De Oro Arenas São Paulo State University, Institute of Science and Technology of Sorocaba, Sorocaba - SP, Brazil
Falcondes José Mendes de Seixas São Paulo State University, Ilha Solteira - SP, Brazil

DOI:

https://doi.org/10.18618/REP.2021.4.0017

Keywords:

Boost Converter, Discontinuous Conduction Mode, High Power Factor

Abstract

This paper presents the analysis of the integration of two three-phase half-controlled boost converters, operating in discontinuous conduction mode (DCM), to the auto-connected 12-pulse rectifier. The proposed structure shows a reduced current harmonic content compared to the traditional 12-pulse rectifiers, being a simpler and effective alternative to using rectifiers with higher pulse numbers. It also presents a greater range of possibilities for regulating the output voltage, without the use of synchronization algorithms or rigorous control techniques, being possible to send to all controlled switches, the same command signal, resulting in a simpler logic. Another advantage of using the proposed technique is the employment of a single-loop voltage control scheme, reducing the computational and financial cost by eliminating some elements such as current sensors. Moreover, the proposed strategy provides soft commutations (Zero-Current-Switching - ZCS). In this work, a small-scale prototype was implemented, aiming to obtain a structure capable to operate in a wide range of line frequencies, without requiring any additional complex techniques. In this regard, the developed structure is capable to work as a Power Factor Correction (PFC) stage in a wide range of input frequencies (30Hz - 120Hz) with a Total Harmonic Distortion of the input current (THDi) of less than 2.19%.

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Author Biographies

João Carlos Pelicer Junior, Federal Institute of São Paulo - IFSP, Sorocaba - SP, Brazil

was born in São Paulo, SP, Brazil, in 1989. He received a B.S. degree in Electrical Engineering from São Paulo State University (UNESP) in 2012, where he also obtained M.S. and Ph.D. degrees in 2014 and 2019, respectively. He is currently a Professor at the Federal Institute of São Paulo (IFSP). His research interest includes high-power factor rectifiers, multipulse converter applications, power factor correction, and switching converters.

Angelo César r de Lourenço, Federal Institute of Education, Science, and Technology of Mato Grosso do Sul, Campo Grande - MS, Brazil

was born in Maringá, Brazil, in 1976. He received a B.S. degree in Electrical Engineering from the Federal University of Mato Grosso do Sul, UFMS, Campo Grande, in 1998, the M.S. degree in Electrical Engineering from Universidade Estadual Paulista, UNESP in 2001, where he also obtained a Ph.D. in 2016. Currently he is a Professor at the Federal Institute of Mato Grosso do Sul, IFMS, Campo Grande since 2010. His research interests include electrical power factor correction, renewable energy, electric machines and drives.

Luis De Oro Arenas, São Paulo State University, Institute of Science and Technology of Sorocaba, Sorocaba - SP, Brazil

was born in Cartagena de Indias, Colombia. He received the B.Sc. degree in electronic engineering from the National University of Colombia, Bogotá D.C., Colombia, in 2012, and the M.Sc. and Ph.D. degrees in electrical engineering from São Paulo State University (UNESP), Ilha Solteira (SP), Brazil, in 2014 and 2019, respectively. He is currently a postdoctoral fellow with the Group of Automation and Integrated Systems, São Paulo State University (UNESP), Sorocaba (SP), Brazil. His current research interests include power electronics, power quality, power theories, smart-metering, and microgrids.

Falcondes José Mendes de Seixas, São Paulo State University, Ilha Solteira - SP, Brazil

was born in Jales, SP, Brazil. He received the B.S. degree in electrical engineering from the Engineering School of Lins, Lins, Brazil, in 1988 and the M.S. and Ph.D. degrees in electrical engineering from the Federal University of Santa Catarina, Florianpolis, Brazil, in 1993 and 2001, respectively. He is currently an Assistant Professor at the Department of Electrical Engineering, São Paulo State University (UNESP), Ilha Solteira, Brazil. His research interests include high-power factor rectifiers, three-state switching cell and multi-pulse converter applications.

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