电动汽车电池组内部绝缘故障研究  

Study on internal insulation fault of battery pack for electric vehicles

作　　者：陈照添 刘成沛[1] CHEN Zhaotian;LIU Chengpei(College of Mechanical and Electrical Engineering,Central South University,Changsha 410083,China)

机构地区：[1]中南大学机电工程学院,湖南长沙410083

出　　处：《邵阳学院学报（自然科学版）》2020年第4期23-30,共8页Journal of Shaoyang University：Natural Science Edition

基　　金：国家自然科学基金资助项目(51175518)。

摘　　要：为了检测电动汽车动力电池组内部的绝缘情况,基于注入电压法的有源式绝缘检测,建立了电动汽车电池组内部绝缘电阻故障检测模型,并在此模型的基础上研究电池组内部单点绝缘故障问题及其定位。理论分析推导与模型仿真相结合,对模型中绝缘电阻值计算与故障定位进行误差分析。In order to detect the internal insulation of electric vehicle battery,a fault detection and positioning model of internal insulation resistance of electric vehicle battery was established based on the active insulation detection method—injection voltage method.Based on this model,the problem of single point insulation fault in the battery pack and its location were studied.Theoretical analysis and model simulation were combined to analyze the error of insulation resistance value calculation and fault location in the model.

关 键 词：电动汽车 电池组 绝缘电阻 故障定位 

分 类 号：U469.72[机械工程—车辆工程]