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A New Topology of Multi-Input Bidirectional DC-DC Converters for Hybrid Energy Storage Systems

Author

Listed:
  • Simone Cosso

    (Department of Electrical, Electronic, Tlc Engineering and Naval Architecture (DITEN), University of Genova, Via All’Opera Pia 11a, 16145 Genova, Italy)

  • Alessandro Benevieri

    (Department of Electrical, Electronic, Tlc Engineering and Naval Architecture (DITEN), University of Genova, Via All’Opera Pia 11a, 16145 Genova, Italy)

  • Mario Marchesoni

    (Department of Electrical, Electronic, Tlc Engineering and Naval Architecture (DITEN), University of Genova, Via All’Opera Pia 11a, 16145 Genova, Italy)

  • Massimiliano Passalacqua

    (Department of Electrical, Electronic, Tlc Engineering and Naval Architecture (DITEN), University of Genova, Via All’Opera Pia 11a, 16145 Genova, Italy)

  • Luis Vaccaro

    (Department of Electrical, Electronic, Tlc Engineering and Naval Architecture (DITEN), University of Genova, Via All’Opera Pia 11a, 16145 Genova, Italy)

  • Paolo Pozzobon

    (Department of Electrical, Electronic, Tlc Engineering and Naval Architecture (DITEN), University of Genova, Via All’Opera Pia 11a, 16145 Genova, Italy)

Abstract

A new topology of multi-input bidirectional DC-DC converters is proposed in this paper. The converter has a boost behavior, i.e., the output voltage is higher than the sum of the input voltages. This family of converters is particularly suited for hybrid energy storage systems, where different DC sources are connected together and where the output voltage is significantly higher than the voltage of a single storage. The proposed converter reduces the number of required switches, leading to higher efficiency and reduced complexity compared to traditional n -input converters. The new topology demonstrates superior performance by enabling higher efficiency with fewer components. A dedicated control, based on PI controllers, is provided to ensure stable operation under dynamic conditions. The effectiveness of the proposed solution is tested using experimental results on a four-input 20 A/100 V converter prototype.

Suggested Citation

  • Simone Cosso & Alessandro Benevieri & Mario Marchesoni & Massimiliano Passalacqua & Luis Vaccaro & Paolo Pozzobon, 2024. "A New Topology of Multi-Input Bidirectional DC-DC Converters for Hybrid Energy Storage Systems," Energies, MDPI, vol. 17(20), pages 1-13, October.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:20:p:5120-:d:1499125
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