Bidirectional DC–DC Converter with Coupled Inductor Fordc-Bus Regulation in Microgrid Applications

Robson Mayer; Menaouar Berrehil El Kattel; Sérgio Vidal Garcia Oliveira

doi:10.18618/REP.2020.3.0007

Authors

Robson Mayer Universidade do Estado de Santa Catarina - UDESC, Joinville – SC, Brazil
Menaouar Berrehil El Kattel Universidade do Estado de Santa Catarina - UDESC, Joinville – SC, Brazil
Sérgio Vidal Garcia Oliveira Universidade do Estado de Santa Catarina - UDESC, Joinville – SC, Brazil

DOI:

https://doi.org/10.18618/REP.2020.3.0007

Keywords:

Bidirectional dc-dc converter, Coupled inductor, Energy storage system, Microgrid

Abstract

This paper presents a theoretical analysis and the experimental results of the bidirectional coupled inductor dc-dc converter for dc-bus voltage regulation and power compensation in dc-microgrid applications. In dc-microgrids, a power distribution system requires a bidirectional converter to control the power flow between dc-bus and batteries. Furthermore, the dc-bus needs to be kept stabilized within certain limits and the converter handles a large range of voltage variation in the accumulators. The proposed topology is also relatively feasible for low-input-voltage applications for interfacing energy storage elements, such as batteries, ultracapacitors with the high voltage dc-bus in electric vehicles. The converter allows greater voltage gain compared to classic non-isolated topologies and can better deal with the wide range of voltage variation imposed by the source/load. The operation principles, the DC voltage gain, the design of the filters, the voltage/current stresses and a comparison are discussed. The experimental results confirmed and validated the theoretical study as well as the converter performance so that the measurements performed obtained from a 600 W laboratory prototype.

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Author Biographies

Robson Mayer, Universidade do Estado de Santa Catarina - UDESC, Joinville – SC, Brazil

was born in Saudades, Santa Catarina, Brazil, in 1985. He received the B.S. in electrical engineering from Católica of Santa Catarina (UNERJ), Jaraguá do Sul in 2010, M.Sc degrees in electrical engineering from the Universidade Regional de Blumenau (FURB) in 2014 and Ph.D. degrees in Electrical Engineering from the Santa Catarina State University (UDESC), Joinville, Brazil, in 2019.

He is currently a researcher at the Núcleo de Processamento de Energia Elétrica (nPEE), UDESC, Joinville and at the Center for Information Technology Renato Archer, Campinas, São Paulo, Brazil. His main research interests are power electronics, dc-dc converters, inverters, PFC converters, rectifiers, high power battery chargers and photovoltaic systems. Dr. Mayer is a member of the following society: SOBRAEP.

Menaouar Berrehil El Kattel , Universidade do Estado de Santa Catarina - UDESC, Joinville – SC, Brazil

Electrotechnical Engineer from Djillali University of Sidi Bel Abbes Liabes, Algeria (2003), and Master in Electrical Engineering from Blumenau Regional University - FURB (2013) and Ph.D. degrees in Electrical Engineering from the Santa Catarina State University - UDESC, Joinville, Brazil (2018).
His topics of interest are three-phase DC-DC converters, soft switching, power electronics applications in electric vehicles and photovoltaic systems. He is a member of the SOBRAEP.

Sérgio Vidal Garcia Oliveira, Universidade do Estado de Santa Catarina - UDESC, Joinville – SC, Brazil

was born in Lages, SC, Brasil, in 1974. He received the B.S. in electrical engineering from Universidade Regional de Blumenau (FURB) in 1999 and M.Sc. and Dr. degrees in electrical engineering from the Universidade Federal de Santa Catarina (UFSC), Florianópolis, Brasil, in 2001 and 2006, respectively.

He is a Researcher on power electronics in both, at Universidade Regional de Blumenau (FURB) since 2004 and, at Universidade do Estado de Santa Catarina (UDESC) since 2012. His research interests are: integrated motor drives, solid-state transformers, distributed generation systems, FEM applied in the design of power electronics magnetic devices, cybersecurity on power electronics and electric traction systems. Dr. Oliveira is an IEEE senior member, also is member of: SOBRAEP - Brazilian Power Electronics Society; SBA - Brazilian Automatic Society; IES - Industrial Electronics Society; PELS - Power Electronics Society, and IAS - Industry Applications Society.

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