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Improved Battery Balancing Control Strategy for Reconfigurable Converter Systems

Author

Listed:
  • Guangwei Wan

    (School of Energy and Power Engineering, Shandong University, Jinan 250061, China)

  • Qiang Zhang

    (School of Energy and Power Engineering, Shandong University, Jinan 250061, China)

  • Menghan Li

    (School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401, China)

  • Siyuan Li

    (School of Energy and Power Engineering, Shandong University, Jinan 250061, China)

  • Zehao Fu

    (School of Energy and Power Engineering, Shandong University, Jinan 250061, China)

  • Junjie Liu

    (School of Energy and Power Engineering, Shandong University, Jinan 250061, China)

  • Gang Li

    (College of Mechanical and Electronic Engineering, Northwest A&F University, Xianyang 712100, China)

Abstract

In order to address the issue of battery cell disparity in lithium-ion battery systems, battery balancing techniques are required. This paper proposes an improved battery balancing strategy within a reconfigurable converter system. The strategy is based on the state of charge (SOC) of batteries, and utilizes the reconfigurable converter system to transfer energy from battery modules with high SOC to those with lower SOC. Additionally, it allows for battery module balancing while supplying power to loads. A MATLAB/Simulink simulation model with five batteries was built to validate the effectiveness of the proposed balancing strategy under unloaded and loaded conditions. The simulation results demonstrate that the proposed strategy achieves more efficient and accurate battery module balancing compared to the previous balancing modes.

Suggested Citation

  • Guangwei Wan & Qiang Zhang & Menghan Li & Siyuan Li & Zehao Fu & Junjie Liu & Gang Li, 2023. "Improved Battery Balancing Control Strategy for Reconfigurable Converter Systems," Energies, MDPI, vol. 16(15), pages 1-21, July.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:15:p:5619-:d:1202877
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    References listed on IDEAS

    as
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    3. Mohamed Daowd & Mailier Antoine & Noshin Omar & Peter Van den Bossche & Joeri Van Mierlo, 2013. "Single Switched Capacitor Battery Balancing System Enhancements," Energies, MDPI, vol. 6(4), pages 1-26, April.
    4. Jun Xu & Siqi Li & Chris Mi & Zheng Chen & Binggang Cao, 2013. "SOC Based Battery Cell Balancing with a Novel Topology and Reduced Component Count," Energies, MDPI, vol. 6(6), pages 1-15, May.
    5. Xiudong Cui & Weixiang Shen & Yunlei Zhang & Cungang Hu, 2017. "A Novel Active Online State of Charge Based Balancing Approach for Lithium-Ion Battery Packs during Fast Charging Process in Electric Vehicles," Energies, MDPI, vol. 10(11), pages 1-17, November.
    6. Chi Nguyen Van & Thuy Nguyen Vinh & Minh-Duc Ngo & Seon-Ju Ahn, 2021. "Optimal SoC Balancing Control for Lithium-Ion Battery Cells Connected in Series," Energies, MDPI, vol. 14(10), pages 1-18, May.
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