Cell Equalization System for Li-Ion Battery Management Based on Fly-Back DC/AC Convertor

Ding Song; Yue Hua Niu; Jie Xing; Jing Mei Zhu

doi:10.4028/www.scientific.net/AMM.614.227

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 614Cell Equalization System for Li-Ion Battery...

Cell Equalization System for Li-Ion Battery Management Based on Fly-Back DC/AC Convertor

Abstract:

Cell equalization acts an important role on the battery life preserving for space application. This paper describes a lithium ion battery cell equalization method for spacecraft that employs innovative design features in power subsystem. The scheme proposed for balancing the battery pack relies on energy conversion devices as it uses transformers to move energy from high voltage cells to low voltage cells without energy loss. The method employs bi-directional forward DC-AC converters, plus a unique common node to provide autonomous charge distribution. It also supports individual cell voltage monitoring, telemetry data. Multisim is used to analyze the function and performance, experimental result proves that the method is effective for Lithium Ion battery equalization.

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Periodical:

Applied Mechanics and Materials (Volume 614)

Pages:

227-232

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.614.227

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Online since:

September 2014

Authors:

Ding Song*, Yue Hua Niu, Jie Xing, Jing Mei Zhu

Keywords:

Bi-Direction DC/AC, Equalizer, Lithium-Ion Battery, Non-Dissipative, Transformer

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* - Corresponding Author

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