深海动力磷酸铁锂电池组均衡方案设计优化

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Abstract In order to improve life cycle and safety of underwater energy storage equipment,the research provides a smart battery management system (SBMS) for power lithium iron phosphate (LiFePO4) stack,and focuses on the cells equalization circuit.Two optimized schemes have been proposed for the Buck-Boost circuit based on inductors in order to improve performance of the equalizing time and the efficiency.The fuzzy current controller is used in system.A constant current charge-discharge experimental study is done on the underwater LiFePO4 stack and comparisons among the performances of three equalizing schemes are carried out.The optimized balancing scheme is implemented on a small electric vehicle,which verifies that the battery stack usage capacity has been improved.

Key words： Underwater energy storage equipment lithium iron phosphate battery management system equalization circuit fuzzy controller

Received: 03 June 2015 Published: 02 November 2016

PACS:

TM912.1

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	Lü Hang
	Liu Chengzhi
	Yin Dong
	Lin Pengfeng
	Jia Junbo

Cite this article:

Lü Hang,Liu Chengzhi,Yin Dong等. The Design and Optimize of Equalization Schemes for Underwater Power LiFePO4 Battery Stack[J]. Transactions of China Electrotechnical Society, 2016, 31(19): 232-238.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2016/V31/I19/232

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