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논문 기본 정보

자료유형
학술저널
저자정보
Jin-Woong Kim (Seoul National University) Jung-Ik Ha (Seoul National University)
저널정보
대한전기학회 Journal of Electrical Engineering & Technology Journal of Electrical Engineering & Technology Vol.11 No.2
발행연도
2016.3
수록면
367 - 376 (10page)

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초록· 키워드

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This paper presents a cell balancing method for a single switch flyback converter with a multi-winding transformer. The conventional method using a flyback converter with a multi-winding transformer is simple and easy to control, but the voltage of each secondary winding coil might be non-uniform because of the unequal effective turn-ratio. In particular, it is difficult to control the nonuniform effect using turn-ratios because secondary coil has a limited number of turns. The nonuniform secondary voltages disturb the cell balancing procedure and induce an unbalance in cell voltages. Individual cell control by adding a switch for each cell can reduce the undesirable effect. However, the circuit becomes bulky, resulting in additional loss. The proposed method here uses the conventional flyback converter with an adjustment made to the output filters of the cells, instead of the additional switch. The magnitude of voltage applied to a particular cell can be reduced or increased according to the adjusted filter and the selected switching frequency. An analysis of the conventional converter configuration and the filter design method reveals the possibility of adequate cell balancing control without any additional switch on the secondary side.

목차

Abstract
1. Introduction
2. Proposed Topology
3. Control Method and Filter Design
4. Simulation and Experimental Results
5. Conclusion
References

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UCI(KEPA) : I410-ECN-0101-2016-560-002378210