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Switching Characteristics Optimization of Two-Phase Interleaved Bidirectional DC/DC for Electric Vehicles

Author

Listed:
  • Feng Wang

    (School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510641, China)

  • Yutao Luo

    (School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510641, China)

  • Hongluo Li

    (School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510641, China)

  • Xiaotong Xu

    (School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510641, China)

Abstract

In electric vehicles (EVs), bidirectional DC/DC(Bi-DC/DC) is installed between the battery pack and the DC bus to step up the voltage. In the process of mode switching under step signal, the Bi-DC/DC will be affected by a large current inrush which threatens the safety of the circuit. In this paper, a Bi-DC/DC mode switching method based on the optimized Bézier curve is proposed. The Boost and Buck modes can be switched based on the proposed method with fast and non-overshoot switching performance. The experimental results show that the mode switching can be finished in 4 ms without overshoot based on the optimal switching curve.

Suggested Citation

  • Feng Wang & Yutao Luo & Hongluo Li & Xiaotong Xu, 2019. "Switching Characteristics Optimization of Two-Phase Interleaved Bidirectional DC/DC for Electric Vehicles," Energies, MDPI, vol. 12(3), pages 1-14, January.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:3:p:378-:d:200704
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    References listed on IDEAS

    as
    1. Shin-Ju Chen & Sung-Pei Yang & Chao-Ming Huang & Huann-Ming Chou & Meng-Jie Shen, 2018. "Interleaved High Step-Up DC-DC Converter Based on Voltage Multiplier Cell and Voltage-Stacking Techniques for Renewable Energy Applications," Energies, MDPI, vol. 11(7), pages 1-17, June.
    2. Mariusz Zdanowski & Jacek Rabkowski & Roman Barlik, 2017. "Highly-Efficient and Compact 6 kW/4 × 125 kHz Interleaved DC-DC Boost Converter with SiC Devices and Low-Capacitive Inductors," Energies, MDPI, vol. 10(3), pages 1-15, March.
    3. Li Zhai & Tao Zhang & Yu Cao & Sipeng Yang & Steven Kavuma & Huiyuan Feng, 2018. "Conducted EMI Prediction and Mitigation Strategy Based on Transfer Function for a High-Low Voltage DC-DC Converter in Electric Vehicle," Energies, MDPI, vol. 11(5), pages 1-17, April.
    Full references (including those not matched with items on IDEAS)

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