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A Novel Lithium Battery Equalization Circuit with Any Number of Inductors

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  • Chusheng Lu

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

  • Longyun Kang

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

  • Xuan Luo

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

  • Jinqing Linghu

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

  • Hongye Lin

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

Abstract

Even with the same voltage level, different types of battery packs have different requirements for the volume of the battery equalization circuit. However, most equalization circuits have the same problem: the volume of the equalization circuit is fixed once the voltage level of the battery pack is determined. In order to solve this problem, this paper proposes a novel lithium battery equalization circuit with any number of inductors (ECANI). It can select any number of inductors less than half the number of batteries, even when the voltage level of the battery pack is determined. Simulation and experiments are used to verify the performance of the equalization circuit. The current error and the average final voltage error in the experiment are 1.69% and 0.33% lower than those in the simulation, respectively. So the circuit can achieve equalization with good accuracy.

Suggested Citation

  • 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.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:24:p:4764-:d:297728
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    References listed on IDEAS

    as
    1. Ricardo Velho & Miguel Beirão & Maria Do Rosário Calado & José Pombo & João Fermeiro & Sílvio Mariano, 2017. "Management System for Large Li-Ion Battery Packs with a New Adaptive Multistage Charging Method," Energies, MDPI, vol. 10(5), pages 1-21, May.
    2. 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.
    3. 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.
    4. 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.
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    Cited by:

    1. Alfredo Alvarez-Diazcomas & Adyr A. Estévez-Bén & Juvenal Rodríguez-Reséndiz & Miguel-Angel Martínez-Prado & Roberto V. Carrillo-Serrano & Suresh Thenozhi, 2020. "A Review of Battery Equalizer Circuits for Electric Vehicle Applications," Energies, MDPI, vol. 13(21), pages 1-29, October.

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