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Battery Cell Balancing with Hybrid Architecture of Serial and Parallel Charging

직·병렬 하이브리드 충전 구조를 사용한 배터리 균형 충전

  • Jeong, Euihan (Division of Electronics Engineering, Intelligent Robot Research Center, Chonbuk National University) ;
  • Yang, Changju (Division of Electronics Engineering, Intelligent Robot Research Center, Chonbuk National University) ;
  • Han, Seungho (KEPCO Research Institute, Korea Electric Power Corporation) ;
  • Kim, Hyongsuk (Division of Electronics Engineering, Intelligent Robot Research Center, Chonbuk National University)
  • Received : 2016.11.19
  • Accepted : 2016.12.08
  • Published : 2016.12.30

Abstract

A hybrid charging method with serial and parallel architecture has been developed to resolve the unbalanced charge problem among battery cells for Electric Vehicles. In this method, the major charging is performed with serial part and the balancing is carried out with the parallel part, where the serial part is big and heavy but the parallel part is smaller and lighter than serial part. A sensor array to detect the individual battery cell voltage, duty rate control incorporated IGBTs, and battery management system are employed as the core parts of the proposed system.

전기자동차 배터리 셀들 간의 불균형 충전 문제를 해결하기 위해, 직병렬 하이브리드 충전 구조를 개발하였다. 이 방법은 직렬 부분에 의해 주 충전이 수행되며 병렬 부분에 의해 밸런싱이 수행되는데, 이 때, 직렬 부분은 부피가 크고 무겁지만 병렬 부분은 직렬 부분보다 작고 가볍다. 개별 배터리 셀 전압을 측정하기 위한 센서 어레이, 듀티비 제어를 포함한 IGBT, 그리고 배터리 관리 시스템은 제안된 시스템의 핵심 요소이다.

Keywords

References

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