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Asymmetrical Pulse-Width Modulation Strategy for Current-Fed Dual Active Bridge Bidirectional Isolated Converter Applied to Energy Storage Systems

Author

Listed:
  • Edivan Laercio Carvalho

    (Department of Electrical Engineering, Graduate Program in Electrical Engineering, Universidade Tecnológica Federal do Paraná-UTFPR, Pato Branco-PR 85503-390, Brazil)

  • Luiz Henrique Meneghetti

    (Department of Electrical Engineering, Graduate Program in Electrical Engineering, Universidade Tecnológica Federal do Paraná-UTFPR, Pato Branco-PR 85503-390, Brazil)

  • Emerson Giovani Carati

    (Department of Electrical Engineering, Graduate Program in Electrical Engineering, Universidade Tecnológica Federal do Paraná-UTFPR, Pato Branco-PR 85503-390, Brazil)

  • Jean Patric da Costa

    (Department of Electrical Engineering, Graduate Program in Electrical Engineering, Universidade Tecnológica Federal do Paraná-UTFPR, Pato Branco-PR 85503-390, Brazil)

  • Carlos Marcelo de Oliveira Stein

    (Department of Electrical Engineering, Graduate Program in Electrical Engineering, Universidade Tecnológica Federal do Paraná-UTFPR, Pato Branco-PR 85503-390, Brazil)

  • Rafael Cardoso

    (Department of Electrical Engineering, Graduate Program in Electrical Engineering, Universidade Tecnológica Federal do Paraná-UTFPR, Pato Branco-PR 85503-390, Brazil)

Abstract

This paper proposes an asymmetrical pulse-width modulation (PWM) strategy for current-fed dual-active bridge (CFDAB) converters applied to energy storage systems (ESS). The ESS application considers low-voltage and high-capacity batteries, for low-power applications, such as data centers, residential photovoltaic systems (PV), and uninterruptable power supplies (UPS). The proposed modulation permits the use of an isolation transformer with negligible leakage inductance and, therefore, avoids the use of auxiliary circuits such as snubbers, active-clamp, or resonant cells. Hence, the converter implementation is simplified. The modulation also benefits the design of the control system because the converter can be modeled and controlled using simple strategies. A straightforward, large-signal model for the battery charge mode, which is valid over all the operation range of the converter, is obtained. Also, the converter operates with a fixed dc bus voltage on both charge and discharge modes. These characteristics represent a significant advantage when the CFDAB with PWM modulation is compared with phase-shifted or frequency modulations, commonly applied in these converters.

Suggested Citation

  • Edivan Laercio Carvalho & Luiz Henrique Meneghetti & Emerson Giovani Carati & Jean Patric da Costa & Carlos Marcelo de Oliveira Stein & Rafael Cardoso, 2020. "Asymmetrical Pulse-Width Modulation Strategy for Current-Fed Dual Active Bridge Bidirectional Isolated Converter Applied to Energy Storage Systems," Energies, MDPI, vol. 13(13), pages 1-22, July.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:13:p:3475-:d:380621
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    Citations

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    Cited by:

    1. Lucas V. Bellinaso & Edivan L. Carvalho & Rafael Cardoso & Leandro Michels, 2021. "Price-Response Matrices Design Methodology for Electrical Energy Management Systems Based on DC Bus Signalling," Energies, MDPI, vol. 14(6), pages 1-19, March.
    2. Luiz Henrique Meneghetti & Edivan Laercio Carvalho & Emerson Giovani Carati & Gustavo Weber Denardin & Jean Patric da Costa & Carlos Marcelo de Oliveira Stein & Rafael Cardoso, 2022. "Hybrid Inverter and Control Strategy for Enabling the PV Generation Dispatch Using Extra-Low-Voltage Batteries," Energies, MDPI, vol. 15(20), pages 1-20, October.
    3. Muhammad Shahab & Shaorong Wang & Abdul Khalique Junejo, 2021. "Improved Control Strategy for Three-Phase Microgrid Management with Electric Vehicles Using Multi Objective Optimization Algorithm," Energies, MDPI, vol. 14(4), pages 1-23, February.

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