基于STM32的蓄电池温度监测系统的研制  

Development of an STM32-based Battery Temperature Monitoring System

作　　者：任宝森 刘键铭 丁振华 李东晓 隋宗强 REN Baosen;LIU Jianming;DING Zhenhua;LI Dongxiao;SUI Zongqiang(State Grid Shandong Electric Extrahigh Voltage Company,Jinan 250000,China)

机构地区：[1]国网山东省电力公司超高压公司,山东济南250000

出　　处：《电工技术》2024年第10期173-175,共3页Electric Engineering

摘　　要：针对目前蓄电池组绝缘老化、短路等状况造成蓄电池组过热甚至爆燃的情况,提出一种基于双传感器温度监测、电流辅助判定的蓄电池温度监测方法,并基于该方法设计出基于STM32的蓄电池温度监测系统。该系统以STM32F407单片机为控制核心,通过电流检测电路将电流互感器中微弱电流转换成可供单片机检测的电池电压,通过MLX90640BAA红外热传感器对电池组进行整体测温,通过DS18B20分布式传感器对每组电池进行分布式测温,从而获取较准确的电池组温度。为分析电池温度与电流的内在关系,该蓄电池温度监测系统设计了存储电路及时钟电路对温度、电流数据进行记录与分析。经测试发现,电池组电池温度测量误差在0.1℃以内,在模拟蓄电池组过热故障时系统可以准确、及时报警。Aiming at the current situation that the battery pack is overheated or even deflagrated due to insulation aging,short circuit and other conditions,a battery temperature monitoring method based on dual-sensor temperature monitoring and current-assisted determination is proposed,and a battery temperature monitoring system based on STM32 is designed.In this system,the STM32F407 single-chip microcomputer is used as the control core,the current weak current is converted into the battery voltage that can be detected by the single-chip microcomputer,and the overall temperature of the battery pack is measured by the MLX90640BAA infrared thermal sensor.The distributed temperature measurement of each group of batteries is carried out by the type sensor,so as to obtain a more accurate temperature of the battery group.In order to analyze the internal relationship between battery temperature and current,storage circuit and clock circuit are designed for the battery temperature monitoring system to record and analyze temperature and current data.The monitoring system has been found by test to achieve a temperature measurement error of the battery pack within 0.1℃,and accurately and timely alarm when simulative battery pack encounters overheat.

关 键 词：蓄电池温度报警 分布式检测 STM32 

分 类 号：TM912[电气工程—电力电子与电力传动]