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A Four-Phase High Voltage Conversion Ratio Bidirectional DC-DC Converter for Battery Applications

Author

Listed:
  • Li-Kun Xue

    (School of Electrical Engineering and Automation, Tianjin University, Tianjin 300072, China)

  • Ping Wang

    (School of Electrical Engineering and Automation, Tianjin University, Tianjin 300072, China)

  • Yi-Feng Wang

    (School of Electrical Engineering and Automation, Tianjin University, Tianjin 300072, China)

  • Tai-Zhou Bei

    (School of Electrical Engineering and Automation, Tianjin University, Tianjin 300072, China)

  • Hai-Yun Yan

    (School of Electrical Engineering and Automation, Tianjin University, Tianjin 300072, China)

Abstract

This study presents a four-phase interleaved high voltage conversion ratio bidirectional DC-DC converter circuit based on coupled inductors and switched capacitors, which can eliminate the defects of conventional high voltage conversion ratio bidirectional DC-DC converters in terms of high-voltage/current stress, less efficiency and low-power limitation. Parallel channels are used to reduce current stress at the low-voltage side and series connected switched capacitors are used to enlarge voltage conversion ratio, reduce voltage stress and achieve auto current sharing. This paper proposes the operation principle, feature analysis and optimization design considerations. On this basis the objectives of high voltage conversion ratio, low voltage/current stress, high power density, high efficiency and high-power applications can be achieved. Some experimental results based on a 500 W prototype converter (24 V to 48 V at low-voltage side, 400 V at high-voltage side) are given to verify the theoretical analysis and the effectiveness of the proposed converter.

Suggested Citation

  • Li-Kun Xue & Ping Wang & Yi-Feng Wang & Tai-Zhou Bei & Hai-Yun Yan, 2015. "A Four-Phase High Voltage Conversion Ratio Bidirectional DC-DC Converter for Battery Applications," Energies, MDPI, vol. 8(7), pages 1-28, June.
    • Handle: RePEc:gam:jeners:v:8:y:2015:i:7:p:6399-6426:d:51678
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    References listed on IDEAS

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    1. Bo Long & Taek Won Jeong & Jong Deuk Lee & Yoo Cheol Jung & Kil To Chong, 2015. "Energy Management of a Hybrid AC–DC Micro-Grid Based on a Battery Testing System," Energies, MDPI, vol. 8(2), pages 1-14, February.
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    Cited by:

    1. Miran Rodič & Miro Milanovič & Mitja Truntič, 2018. "Digital Control of an Interleaving Operated Buck-Boost Synchronous Converter Used in a Low-Cost Testing System for an Automotive Powertrain," Energies, MDPI, vol. 11(9), pages 1-24, August.
    2. Muhammad Faisal Fiaz & Sandro Calligaro & Mattia Iurich & Roberto Petrella, 2022. "Analytical Modeling and Control of Dual Active Bridge Converter Considering All Phase-Shifts," Energies, MDPI, vol. 15(8), pages 1-32, April.
    3. Chih-Lung Shen & You-Sheng Shen & Cheng-Tao Tsai, 2017. "Isolated DC-DC Converter for Bidirectional Power Flow Controlling with Soft-Switching Feature and High Step-Up/Down Voltage Conversion," Energies, MDPI, vol. 10(3), pages 1-23, March.
    4. Kou-Bin Liu & Chen-Yao Liu & Yi-Hua Liu & Yuan-Chen Chien & Bao-Sheng Wang & Yong-Seng Wong, 2016. "Analysis and Controller Design of a Universal Bidirectional DC-DC Converter," Energies, MDPI, vol. 9(7), pages 1-23, June.

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    2. Miran Rodič & Miro Milanovič & Mitja Truntič, 2018. "Digital Control of an Interleaving Operated Buck-Boost Synchronous Converter Used in a Low-Cost Testing System for an Automotive Powertrain," Energies, MDPI, vol. 11(9), pages 1-24, August.

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