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Electric Vehicle Battery Simulation System for Mobile Field Test of Off-Board Charger

Author

Listed:
  • Xiangwu Yan

    (Key Laboratory of Distributed Energy Storage and Micro-Grid of Hebei Province, North China Electric Power University, Baoding 071003, China)

  • Ling Wang

    (Key Laboratory of Distributed Energy Storage and Micro-Grid of Hebei Province, North China Electric Power University, Baoding 071003, China)

  • Zhichao Chai

    (Key Laboratory of Distributed Energy Storage and Micro-Grid of Hebei Province, North China Electric Power University, Baoding 071003, China)

  • Shuaishuai Zhao

    (Key Laboratory of Distributed Energy Storage and Micro-Grid of Hebei Province, North China Electric Power University, Baoding 071003, China)

  • Zisheng Liu

    (Key Laboratory of Distributed Energy Storage and Micro-Grid of Hebei Province, North China Electric Power University, Baoding 071003, China)

  • Xuewei Sun

    (Key Laboratory of Distributed Energy Storage and Micro-Grid of Hebei Province, North China Electric Power University, Baoding 071003, China)

Abstract

An electric vehicle power battery simulation system simulating different power battery packs for the field test of the off-board charger is designed, which can be used to test the performance of an off-board charger. Specifically, the improved power battery model is combined with the improved lightweight charging load and the online estimation of the state of charge as well as the electromotive force of the battery model are used to adjust charging load parameters in real time to simulate the charging response. An acceleration coefficient is introduced into the traditional battery model to improve test efficiency, and the type, specification, temperature and voltage parameters of the battery can be set online according to the test requirements. An improved charging load scheme is proposed, in which a DC converter cascaded power battery pack of the mobile test vehicle is used to form a lightweight charging load with the mode of constant voltage, constant current, constant power and constant resistance and the ability to be adjusted continuously within the rated range. As a result, the size and weight of the charging load are reduced and the autonomous test of the off-board charger is realized. The performances of the proposed battery simulation system are validated through the various experimental results.

Suggested Citation

  • Xiangwu Yan & Ling Wang & Zhichao Chai & Shuaishuai Zhao & Zisheng Liu & Xuewei Sun, 2019. "Electric Vehicle Battery Simulation System for Mobile Field Test of Off-Board Charger," Energies, MDPI, vol. 12(15), pages 1-17, August.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:15:p:3025-:d:255143
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