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Research on Parallel Characteristics of Lithium Iron Phosphate Batteries for Dual Electric Multiple Units

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Proceedings of the 2013 International Conference on Electrical and Information Technologies for Rail Transportation (EITRT2013)-Volume II

Part of the book series: Lecture Notes in Electrical Engineering ((LNEE,volume 288))

Abstract

The performance of power lithium ion battery pack in parallel will be further degraded due to the inconsistency of the cells. Under different working conditions, battery pack in parallel reflects different charging and discharging characteristics. In this paper, based on the series-parallel simulation platform, the actual current of parallel battery pack was obtained from the power characteristic of dual electric multiple unit (DEMU). The charging and discharging characteristics of parallel connection for Lithium iron phosphate (LiFePO4) battery batteries with constant current and the loop current phenomenon under different state of charge (SOC) were investigated combined with the practical charging and discharging tests in the laboratory, which are helpful to get the main causes of aging of battery pack in parallel. An optimized usage range of SOC is proposed which provides the basis for battery management and prolongs the battery life cycle.

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References

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Acknowledgments

The work is supported by National Key Technology R&D Program (2013BAGL1B00).

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Authors and Affiliations

  1. National Active Distribution Network Technology Research Center, Beijing Jiaotong University, 100044, Beijing, China

    Yanru Zhang, Jiuchun Jiang, Weige Zhang, Wei Shi, Zeyu Ma & Fangdan Zheng

Authors
  1. Yanru Zhang
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  2. Jiuchun Jiang
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  3. Weige Zhang
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  4. Wei Shi
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  5. Zeyu Ma
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  6. Fangdan Zheng
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Corresponding author

Correspondence to Yanru Zhang .

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Editors and Affiliations

  1. Beijing Jiaotong University, Beijing, China

    Limin Jia

  2. Beijing Jiaotong University, Beijing, China

    Zhigang Liu

  3. Beijing Jiaotong University, Beijing, China

    Yong Qin

  4. China CNR Changchun Railway Vehicles Co., Changchun, China

    Minghua Zhao

  5. Beijing Jiaotong University, Beijing, China

    Lijun Diao

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© 2014 Springer-Verlag Berlin Heidelberg

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Zhang, Y., Jiang, J., Zhang, W., Shi, W., Ma, Z., Zheng, F. (2014). Research on Parallel Characteristics of Lithium Iron Phosphate Batteries for Dual Electric Multiple Units. In: Jia, L., Liu, Z., Qin, Y., Zhao, M., Diao, L. (eds) Proceedings of the 2013 International Conference on Electrical and Information Technologies for Rail Transportation (EITRT2013)-Volume II. Lecture Notes in Electrical Engineering, vol 288. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-53751-6_10

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  • DOI: https://doi.org/10.1007/978-3-642-53751-6_10

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-53750-9

  • Online ISBN: 978-3-642-53751-6

  • eBook Packages: EngineeringEngineering (R0)

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