便携式车辆动力电池绝缘监测仪的设计研究  

Design and Research of Portable Vehicle Power Battery Insulation Monitor

作　　者：毛明珠 陈振斌[1] 赖佳琴 卞文博 胡皓文 Mao Mingzhu;Chen Zhenbin;Lai Jiaqin;Bian Wenbo;Hu Haowen(School of Electrical and Mechanical Engineering Hainan University,Hainan Haikou 570228)

机构地区：[1]海南大学机电工程学院,海南海口570228

出　　处：《汽车实用技术》2020年第7期12-15,21,共5页Automobile Applied Technology

摘　　要：动力电池作为电动汽车行驶安全的关键部分,为了能够监测动力电池实时绝缘状态,本文设计了一种便携式绝缘监测仪,搭建了绝缘监测系统理论模型,利用Simulink仿真模拟验证其有效性。对绝缘监测仪进行了软硬件设计,通过台架实验分析测试数据得出,绝缘监测仪检测误差在5%以内,具有较高的检测精度。该监测仪可实时监测动力电池绝缘阻值,根据阈值判断动力电池绝缘故障,能够及时切断电池输出并声光报警,满足应用要求。As a key part of driving safety of electric vehicle,in order to monitor the real-time insulation state of power battery,a portable insulation monitor is designed in this paper.The theoretical model of insulation monitoring system is built,and its effectiveness is verified by Simulink simulation.The hardware and software of the insulation monitor are designed.Through the experimental analysis of the test data,it is concluded that the detection error of the insulation monitor is less than 5%,and there is a high detection accuracy.The monitor can monitor the insulation resistance of power battery in real time,judging the insulation fault of power battery according to the threshold,meanwhile,cutting off the battery output and alarming driver in time,to meet the application requirements.

关 键 词：电动汽车 动力电池 绝缘监测 绝缘故障 

分 类 号：TM855[电气工程—高电压与绝缘技术]