基于STM32和LTC6804的电池管理系统设计
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摘要
采用"主从式"的拓扑结构,设计了一种以STM32和LTC6804为核心的电池管理系统。两板间通过SPI进行通信,配合电流、电压、温度采集电路、均衡电路等,实现对12串锂电池组的管理,延长电池组使用寿命;同时用LabVIEW编写了上位机监控界面,可对电池管理系统采集的数据进行实时显示,对历史数据进行保存,以便后续的处理及分析。实验证明该管理系统有较高的精度,表明该系统的实用性和有效性。
A battery management system based on STM32 and LTC6804 was designed with the master slaver topological structure. Two boards communicated with the SPI,cooperating with current,voltage,temperature acquisition circuit,and equalization circuit,etc,to realize the management of the 12 string of lithium-ion battery pack,and prolong the service life of the battery pack. At the same time,the upper computer monitoring interface was written with LabVIEW,which can display the data collected by the battery management system in real time,and save the historical data for the further processing and analysis. Experiments show that the BMS has high precision,which shows the practicability and effectiveness of the system.
A battery management system based on STM32 and LTC6804 was designed with the master slaver topological structure. Two boards communicated with the SPI,cooperating with current,voltage,temperature acquisition circuit,and equalization circuit,etc,to realize the management of the 12 string of lithium-ion battery pack,and prolong the service life of the battery pack. At the same time,the upper computer monitoring interface was written with LabVIEW,which can display the data collected by the battery management system in real time,and save the historical data for the further processing and analysis. Experiments show that the BMS has high precision,which shows the practicability and effectiveness of the system.
引文
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[2]麻金龙,夏超英,蔡奔.基于Infineon XC2785的电池管理系统采集单元设计[J].仪表技术与传感器,2014(7):24-27.
[3] GONG X,XIONG R,MI C C. Study of the characteristics of battery packs in electric vehicles with parallel-connected lithium-Ion battery cells[J]. IEEE Transactions on Industry Applications,2015:1872-1879.
[4] LIM C S,LEE K J,KU N J,et al. A modularized equalization method based on magnetizing energy for a series-connected lithium-Ion battery string[J]. IEEE Transactions on Power Electronics,2013,29(4):1791-1799.
[5] JI W,LU X,JI Y,et al. Low cost battery equalizer using buck-boost and series LC converter with synchronous phaseshift control[C]. Applied Power Electronics Conference and Exposition. IEEE,2013:1152-1157.
[6] LU L,HAN X,LI J,et al. A review on the key issues for lithium-ion battery management in electric vehicles[J]. Journal of Power Sources,2013,226:272-288.
[7]谭晓军.电池管理系统深度理论研究:面向大功率电池组的应用技术[M].广州:中山大学出版社,2014.
[8]宋炳雨. DS18B20A温度传感器在电动汽车电池管理系统中的应用[J].山东理工大学报,2010(5):82-85.