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A Novel Hybrid Control Strategy and Dynamic Performance Enhancement of a 3.3 kW GaN–HEMT-Based iL 2 C Resonant Full-Bridge DC–DC Power Converter Methodology for Electric Vehicle Charging Systems

Author

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  • Rajanand Patnaik Narasipuram

    (Department of Electrical and Electronics Engineering, Vignan’s Foundation for Science Technology and Research, Guntur 522213, India)

  • Subbarao Mopidevi

    (Department of Electrical and Electronics Engineering, Vignan’s Foundation for Science Technology and Research, Guntur 522213, India)

Abstract

The conventional resonant inductor–inductor–capacitor (L 2 C) DC–DC converters have the major drawbacks of poor regulation, improper current sharing, load current ripples, conduction losses, and limiting the power levels to operate at higher loads for electric vehicle (EV) charging systems. To address the issues of the L 2 C converter, this paper proposes an interleaved inductor–inductor–capacitor (iL 2 C) full-bridge (FB) DC–DC converter as an EV charger with wide input voltage conditions. It comprises two L 2 C converters operating in parallel on the primary side with 8-GaN switches and maintains the single rectifier circuit on the secondary side as common. Further, it introduces the hybrid control strategy called variable frequency + phase shift modulation (VFPSM) technique for iL 2 C with a constant voltage charging mode operation. The design requirements, modeling, dynamic responses, and operation of an iL 2 C converter with a controller are discussed. The analysis of the proposed concept designed and simulated with an input voltage of 400 V in at a load voltage of 48 V 0 presented at different load conditions, i.e., full load (3.3 kW), half load (1.65 kW), and light load (330 W). The dynamic performances of the converter during line and load regulations are presented at assorted input voltages. In addition, to analyze the controller and converter performance, the concept was validated experimentally for wide input voltage applications of 300–500 V in with a desired output of 48 V 0 at full load condition, i.e., 3.3 kW and the practical efficiency of the iL 2 C converter was 98.2% at full load.

Suggested Citation

  • Rajanand Patnaik Narasipuram & Subbarao Mopidevi, 2023. "A Novel Hybrid Control Strategy and Dynamic Performance Enhancement of a 3.3 kW GaN–HEMT-Based iL 2 C Resonant Full-Bridge DC–DC Power Converter Methodology for Electric Vehicle Charging Systems," Energies, MDPI, vol. 16(15), pages 1-22, August.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:15:p:5811-:d:1210819
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    References listed on IDEAS

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    1. Chao-Tsung Ma, 2019. "System Planning of Grid-Connected Electric Vehicle Charging Stations and Key Technologies: A Review," Energies, MDPI, vol. 12(21), pages 1-22, November.
    2. Afaq Ahmad & Muhammad Khalid & Zahid Ullah & Naveed Ahmad & Mohammad Aljaidi & Faheem Ahmed Malik & Umar Manzoor, 2022. "Electric Vehicle Charging Modes, Technologies and Applications of Smart Charging," Energies, MDPI, vol. 15(24), pages 1-32, December.
    3. David Lumbreras & Manel Vilella & Jordi Zaragoza & Néstor Berbel & Josep Jordà & Alfonso Collado, 2021. "Effect of the Heat Dissipation System on Hard-Switching GaN-Based Power Converters for Energy Conversion," Energies, MDPI, vol. 14(19), pages 1-28, October.
    4. Xiao Long & Dongdong Chen, 2023. "Small Signal Modeling of LLC Converter with LED Load and Quasi-Resonant Controller Based Active Ripple Rejection," Energies, MDPI, vol. 16(9), pages 1-18, April.
    5. Salvatore Musumeci & Vincenzo Barba, 2023. "Gallium Nitride Power Devices in Power Electronics Applications: State of Art and Perspectives," Energies, MDPI, vol. 16(9), pages 1-18, May.
    6. Mohammad Shahjalal & Tamanna Shams & Moshammed Nishat Tasnim & Md Rishad Ahmed & Mominul Ahsan & Julfikar Haider, 2022. "A Critical Review on Charging Technologies of Electric Vehicles," Energies, MDPI, vol. 15(21), pages 1-26, November.
    7. Héctor Sarnago & Óscar Lucía & Iulian O. Popa & José M. Burdío, 2021. "Constant-Current Gate Driver for GaN HEMTs Applied to Resonant Power Conversion," Energies, MDPI, vol. 14(9), pages 1-10, April.
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