王秋霞.基于MCS D2P的动力锂电池管理系统主控软件[J].深圳大学学报理工版,2018,35(No.5(441-550)):473-478.[doi:10.3724/SP.J.1249.2018.05473]
WANG Qiuxia.The master control software for power lithium battery management system based on MCS D2P development platform[J].Journal of Shenzhen University Science and Engineering,2018,35(No.5(441-550)):473-478.[doi:10.3724/SP.J.1249.2018.05473]
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基于MCS D2P的动力锂电池管理系统主控软件
王秋霞

福建船政交通职业学院机械工程系,福建福州 350007

信息处理技术; MCS D2P开发平台; 动力锂电池; 电池管理系统; 数据采集; 荷电状态估算

The master control software for power lithium battery management system based on MCS D2P development platform
WANG Qiuxia

Mechanical Engineering Department, Fujian Chuanzheng Communications College, Fuzhou 350007, Fujian Province, P.R.China

information processing technology; MCS D2P development platform; power lithium battery; battery management system; data acquisition; state of charge(SOC)estimation

DOI: 10.3724/SP.J.1249.2018.05473

备注

为克服传统的电池管理系统(battery management system, BMS)开发方法不仅不利于先进算法的软件实现,且存在开发周期长和费用高的缺点,基于MCS D2P快速控制原型开发平台搭建BMS硬件,针对动力锂电池由多节电芯串联而成的特点,分析BMS对电池组总电压、电流、电芯电压和温度的实时测量,对电池剩余电量实时评价的功能,以及由主控模块、检测模块和均衡管理模块构成的主要硬件结构.设计主控软件数据流、主程序流程图、数据采集程序流程图和荷电状态(state of charge,SOC)估算程序流程图.以由15节电芯构成的48 V、50 Ah磷酸铁锂电池组为试验对象,设计周期性充放电测试试验,得到电池总电压和电流的测量误差均在±0.5%内,温度的测量误差在±0.5 ℃内,SOC实测值与理论值差值小于8%,验证了主控软件设计的可行性.

The traditional battery management system(BMS)development method not only is not conducive to the software implementation of advanced algorithms, but also has the disadvantages of long development cycle and high cost. To overcome these problems, the BMS hardware is built based on the MCS D2P rapid control prototype development platform. The power lithium battery is made up of multiple battery cells in series. In view of this characteristic, ① the BMS real-time measurements of battery voltage, current, cell voltage and temperature, ② the BMS real-time evaluation of battery residual power, ③ the main hardware structure composed of main control module, detection module and equalization management module are analyzed. On this basis, the data flow of master control software, the main program flow chart, the data acquisition flow chart and the state of charge(SOC)estimation flow chart are designed. Taking a 48 V, 50 Ah lithium iron phosphate battery pack consisting of 15 cells as the test object, the periodic charging and discharging test is designed. The test results show that both the measurement errors of the battery total voltage and current are less than ±0.5%, the measurement error of temperature is less than ±0.5 ℃, the difference between the measured value of SOC and the theoretical value of SOC is also within 8%, which verifies the feasibility and the correctness of the design of the master control software.

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