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Hybrid Modulation of Bidirectional Three-Phase Dual-Active-Bridge DC Converters for Electric Vehicles

Author

Listed:
  • Yen-Ching Wang

    (Department of Electric Engineering, National Sun Yat-sen University, Kaohsiung 80424, Taiwan)

  • Fu-Ming Ni

    (Department of Electric Engineering, National Sun Yat-sen University, Kaohsiung 80424, Taiwan)

  • Tzung-Lin Lee

    (Department of Electric Engineering, National Sun Yat-sen University, Kaohsiung 80424, Taiwan)

Abstract

Bidirectional power converters for electric vehicles (EVs) have received much attention recently, due to either grid-supporting requirements or emergent power supplies. This paper proposes a hybrid modulation of the three-phase dual-active bridge (3ΦDAB) converter for EV charging systems. The designed hybrid modulation allows the converter to switch its modulation between phase-shifted and trapezoidal modes to increase the conversion efficiency, even under light-load conditions. The mode transition is realized in a real-time manner according to the charging or discharging current. The operation principle of the converter is analyzed in different modes and thus design considerations of the modulation are derived. A lab-scaled prototype circuit with a 48V/20Ah LiFePO 4 battery is established to validate the feasibility and effectiveness.

Suggested Citation

  • Yen-Ching Wang & Fu-Ming Ni & Tzung-Lin Lee, 2016. "Hybrid Modulation of Bidirectional Three-Phase Dual-Active-Bridge DC Converters for Electric Vehicles," Energies, MDPI, vol. 9(7), pages 1-13, June.
    • Handle: RePEc:gam:jeners:v:9:y:2016:i:7:p:492-:d:72842
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    Citations

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    Cited by:

    1. Dante Ruiz-Robles & Vicente Venegas-Rebollar & Adolfo Anaya-Ruiz & Edgar L. Moreno-Goytia & Juan R. Rodríguez-Rodríguez, 2018. "Design and Prototyping Medium-Frequency Transformers Featuring a Nanocrystalline Core for DC–DC Converters," Energies, MDPI, vol. 11(8), pages 1-17, August.
    2. Jiatu Hong & Mahinda Vilathgamuwa & Jian Yin & Yitao Liu & Jianchun Peng & Hui Jiang, 2018. "Power Decoupling of a Single Phase DC-AC Dual Active Bridge Converter Based on an Integrated Bidirectional Buck/Boost Stage," Energies, MDPI, vol. 11(10), pages 1-16, October.
    3. Chuan Sun & Xiaodong Li, 2018. "Fast Transient Modulation for a Step Load Change in a Dual-Active-Bridge Converter with Extended-Phase-Shift Control," Energies, MDPI, vol. 11(6), pages 1-22, June.
    4. Jordi Everts, 2016. "Design and Optimization of an Efficient (96.1%) and Compact (2 kW/dm3) Bidirectional Isolated Single-Phase Dual Active Bridge AC-DC Converter," Energies, MDPI, vol. 9(10), pages 1-40, October.

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