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Research on a Novel Power Inductor-Based Bidirectional Lossless Equalization Circuit for Series-Connected Battery Packs

Author

Listed:
  • Xiangwei Guo

    (New Energy Research Center of Electric Power College, South China University of Technology, Guangzhou 510640, China
    Guangdong Key Laboratory of Clean Energy Technology, South China University of Technology, Guangzhou 510640, China)

  • Longyun Kang

    (New Energy Research Center of Electric Power College, South China University of Technology, Guangzhou 510640, China
    Guangdong Key Laboratory of Clean Energy Technology, South China University of Technology, Guangzhou 510640, China)

  • Zhizhen Huang

    (New Energy Research Center of Electric Power College, South China University of Technology, Guangzhou 510640, China
    Guangdong Key Laboratory of Clean Energy Technology, South China University of Technology, Guangzhou 510640, China)

  • Yuan Yao

    (New Energy Research Center of Electric Power College, South China University of Technology, Guangzhou 510640, China
    Guangdong Key Laboratory of Clean Energy Technology, South China University of Technology, Guangzhou 510640, China)

  • Huizhou Yang

    (Huawei Technologies Co., Ltd., Shenzhen 518129, China)

Abstract

Cell balancing plays an important role in preserving the life of series-connected battery packs; without a suitable balancing system, the individual cell voltages will differ over time, and the battery pack capacity will decrease quickly. This paper presents a novel power inductor-based bidirectional lossless equalization circuit. This circuit consists of several balancing sub-circuits, which allow the dynamic adjustment of the equalization path and equalization threshold. The simulation and experiment results demonstrate that the proposed circuit, which features a simple control method, fast balancing, and a large equalization current, exhibits outstanding equalization performance.

Suggested Citation

  • Xiangwei Guo & Longyun Kang & Zhizhen Huang & Yuan Yao & Huizhou Yang, 2015. "Research on a Novel Power Inductor-Based Bidirectional Lossless Equalization Circuit for Series-Connected Battery Packs," Energies, MDPI, vol. 8(6), pages 1-22, June.
    • Handle: RePEc:gam:jeners:v:8:y:2015:i:6:p:5555-5576:d:50872
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    References listed on IDEAS

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    1. Nima Lotfi & Poria Fajri & Samuel Novosad & Jack Savage & Robert G. Landers & Mehdi Ferdowsi, 2013. "Development of an Experimental Testbed for Research in Lithium-Ion Battery Management Systems," Energies, MDPI, vol. 6(10), pages 1-28, October.
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    Cited by:

    1. Xiaolin Wang & Ka Wai Eric Cheng & Yat Chi Fong, 2019. "Zero Current Switching Switched-Capacitors Balancing Circuit for Energy Storage Cell Equalization and Its Associated Hybrid Circuit with Classical Buck-Boost," Energies, MDPI, vol. 12(14), pages 1-15, July.
    2. Chusheng Lu & Longyun Kang & Xuan Luo & Jinqing Linghu & Hongye Lin, 2019. "A Novel Lithium Battery Equalization Circuit with Any Number of Inductors," Energies, MDPI, vol. 12(24), pages 1-14, December.
    3. Chusheng Lu & Longyun Kang & Shubiao Wang & Zefeng Wang & Huabing Rao, 2018. "A Novel Inductor-Based Non-Dissipative Equalizer," Energies, MDPI, vol. 11(10), pages 1-14, October.
    4. Xintian Liu & Yafei Sun & Yao He & Xinxin Zheng & Guojian Zeng & Jiangfeng Zhang, 2017. "Battery Equalization by Fly-Back Transformers with Inductance, Capacitance and Diode Absorbing Circuits," Energies, MDPI, vol. 10(10), pages 1-16, September.
    5. Yuanmao Ye & Ka Wai Eric Cheng, 2016. "An Automatic Switched-Capacitor Cell Balancing Circuit for Series-Connected Battery Strings," Energies, MDPI, vol. 9(3), pages 1-15, February.
    6. Shubiao Wang & Longyun Kang & Xiangwei Guo & Zefeng Wang & Ming Liu, 2017. "A Novel Layered Bidirectional Equalizer Based on a Buck-Boost Converter for Series-Connected Battery Strings," Energies, MDPI, vol. 10(7), pages 1-15, July.
    7. Jiayu Wang & Shuailong Dai & Xi Chen & Xiang Zhang & Zhifei Shan, 2019. "Bidirectional Multi-Input and Multi-Output Energy Equalization Circuit for the Li-Ion Battery String Based on the Game Theory," Complexity, Hindawi, vol. 2019, pages 1-17, June.
    8. Shungang Xu & Kai Gao & Xiaobing Zhang & Kangle Li, 2019. "Double-Layer E-Structure Equalization Circuit for Series Connected Battery Strings," Energies, MDPI, vol. 12(22), pages 1-16, November.
    9. Murat Ceylan & Abdulkadir Balikci, 2023. "An Intermodular Active Balancing Topology for Efficient Operation of High Voltage Battery Packs in Li-Ion Based Energy Storage Systems: Switched (Flying) DC/DC Converter," Energies, MDPI, vol. 16(15), pages 1-22, July.
    10. Shun-Chung Wang & Chun-Yu Liu & Yi-Hua Liu, 2018. "A Fast Equalizer with Adaptive Balancing Current Control," Energies, MDPI, vol. 11(5), pages 1-15, April.

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