The Design and Optimize of Equalization Schemes for Underwater Power LiFePO4 Battery Stack
Lü Hang1,2, Liu Chengzhi2, Yin Dong2, Lin Pengfeng2, Jia Junbo3
1.State Grid Leshan Power Supply Company Leshan 614000 China; 2.School of Electrical Engineering Southwest Jiaotong University Chengdu 610031 China; 3.Clean Energy Research Center Temasek Polytechnic Singapore 529757 Singapore
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.
吕航,刘承志,尹栋,林鹏峰,贾俊波. 深海动力磷酸铁锂电池组均衡方案设计优化[J]. 电工技术学报, 2016, 31(19): 232-238.
Lü Hang, Liu Chengzhi, Yin Dong, Lin Pengfeng, Jia Junbo. The Design and Optimize of Equalization Schemes for Underwater Power LiFePO4 Battery Stack. Transactions of China Electrotechnical Society, 2016, 31(19): 232-238.
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2016, Vol. 31 
