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A Novel Multilevel Bidirectional Topology for On-Board EV Battery Chargers in Smart Grids

Author

Listed:
  • Rafael S. Leite

    (Industrial Electronics Department, School of Engineering, University of Minho, 4800-058 Guimarães, Portugal)

  • João L. Afonso

    (Industrial Electronics Department, School of Engineering, University of Minho, 4800-058 Guimarães, Portugal)

  • Vítor Monteiro

    (Industrial Electronics Department, School of Engineering, University of Minho, 4800-058 Guimarães, Portugal)

Abstract

This paper proposes a novel on-board electric vehicle (EV) battery charger (EVBC) based on a bidirectional multilevel topology. The proposed topology is formed by an AC-DC converter for the grid-side interface and by a DC-DC converter for the battery-side interface. Both converters are interfaced by a split DC-link used to achieve distinct voltage levels in both converters. Characteristically, the proposed EVBC operates with sinusoidal grid-side current, unitary power factor, controlled battery-side current or voltage, and controlled DC-link voltages. The grid-side converter operates with five voltage levels, while the battery-side operates with three voltage levels. An assessment, for comparison with classical multilevel converters for EVBCs is considered along the paper, illustrating the key benefits of the proposed topology. As the proposed EVBC is controlled in bidirectional mode, targeting the EV incorporation into smart grids, the grid-to-vehicle (G2V) and vehicle-to-grid (V2G) operation modes are discussed and evaluated. Both converters of the proposed EVBC use discrete-time predictive control algorithms, which are described in the paper. An experimental validation was performed under real operating conditions, employing a developed laboratory prototype.

Suggested Citation

  • Rafael S. Leite & João L. Afonso & Vítor Monteiro, 2018. "A Novel Multilevel Bidirectional Topology for On-Board EV Battery Chargers in Smart Grids," Energies, MDPI, vol. 11(12), pages 1-21, December.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:12:p:3453-:d:189372
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    Citations

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    Cited by:

    1. Vitor Monteiro & Pedro Lima & Tiago J. C. Sousa & Julio S. Martins & Joao L. Afonso, 2020. "An Off-Board Multi-Functional Electric Vehicle Charging Station for Smart Homes: Analysis and Experimental Validation," Energies, MDPI, vol. 13(8), pages 1-23, April.
    2. Mauricio Muñoz-Ramírez & Hugo Valderrama-Blavi & Marco Rivera & Carlos Restrepo, 2019. "An Approach to Natural Sampling Using a Digital Sampling Technique for SPWM Multilevel Inverter Modulation," Energies, MDPI, vol. 12(15), pages 1-16, July.
    3. Ferreira, Paula & Rocha, Ana & Araujo, Madalena & Afonso, Joao L. & Antunes, Carlos Henggeler & Lopes, Marta A.R. & Osório, Gerardo J. & Catalão, João P.S. & Lopes, João Peças, 2023. "Assessing the societal impact of smart grids: Outcomes of a collaborative research project," Technology in Society, Elsevier, vol. 72(C).
    4. Naireeta Deb & Rajendra Singh & Richard R. Brooks & Kevin Bai, 2021. "A Review of Extremely Fast Charging Stations for Electric Vehicles," Energies, MDPI, vol. 14(22), pages 1-27, November.
    5. Joao L. Afonso & Luiz A. Lisboa Cardoso & Delfim Pedrosa & Tiago J. C. Sousa & Luis Machado & Mohamed Tanta & Vitor Monteiro, 2020. "A Review on Power Electronics Technologies for Electric Mobility," Energies, MDPI, vol. 13(23), pages 1-61, December.

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