An Active Equalization Technique Based on Flyback Converter Topology

Abstract:

This paper presents an active cell balancing technique for lithium-ion battery stacks using a flyback dc/dc converter topology. The combination of batteries can be controlled according to the batteries voltages to implement the battery-balancing function. The operational principle of the proposed system is described in detail, then the paper develops different strategies adapting to different working status of battery pack and a series of bench experiments is conducted to examine the effectiveness of the equalization system.

• Periodical: Applied Mechanics and Materials (Volume 721)
• Pages: 612-617
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.721.612
• Online since: December 2014
• Authors: Hong Wei Liu*, Hong He, Yu Gui, Xiao Wei Hao
• Keywords: Battery Inconsistency, Battery Stack, Bidirectional Equalization, Flyback Transformer

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