Journal of the Korean Society of Industry Convergence (한국산업융합학회 논문집)

The Korean Society of Industry Convergence (한국산업융합학회)
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Development of Battery Management System using Multiple Microcontroller

다중 마이크로콘트롤러를 사용한 배터리 관리 시스템의 개발

  • 최정원 (영남이공대학교 전기자동화과) ;
  • 장운근 (영남이공대학교 기계계열)
  • Received : 2018.09.18
  • Accepted : 2018.12.03
  • Published : 2018.12.31
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Abstract

In an electric vehicle and Energy Storage System(ESS), a large number of batteries are connected in series or parallel to obtain high voltage and current. The battery management system(BMS) is needed because battery has a characteristic that explode in overcharging and overcurrent situations due to the nature of the battery material and the battery life is dramatically reduced when the battery is overdischarged below the specified voltage. In this paper, we proposed a system that can manage a large amount of batteries through the communication of master-slave type with multiple microcontroller. We confirmed the stable operation of the proposed system through the balancing-charging and storage mode experiments.

Keywords

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Fig. 1 Examples of stock BMS

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Fig. 2 Diagram of Master board

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Fig. 3 Diagram of slave board

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Fig. 4 Connection of Master and Slave boards

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Fig. 5 Master Board and display part

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Fig. 6 Slave board

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Fig. 7 Developed BMS

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Fig. 8 Experiment of balancing-charging mode

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Fig. 9 Experiment of storage mode

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