电工技术学报2017，Vol.32Issue(18)：106-112,7.DOI:10.19595/j.cnki.1000-6753.tces.151595
串联电池组接触电阻故障诊断分析
Series Battery Pack's Contact Resistance Fault Diagnosis Analysis
徐佳宁 1梁栋滨 1魏国 1朱春波1
作者信息
- 1. 哈尔滨工业大学电气工程与自动化学院 哈尔滨 150001
- 折叠
摘要
Abstract
The resource-saving and environment-friendly electric vehicle is the forward position and technical commanding point in the process of global technological revolution and industrial transformation. To ensure the safety of electric vehicles when driving and avoid battery power fade fault, a first-order RC equivalent circuit model is used to analyze the connection failure of battery pack. The least squares method is adopted for parameter identification, and the variation of model parameters with SOC is studied. Next, based on the Simscape simulation of battery fault, the main reason for the battery failure with abnormal battery voltage change is the increase of contact resistance or internal resistance. Finally, how to determine the occurrence of contact resistance fault is experimentally explored, by comparing battery voltage, current and resistance before and after the fault.关键词
电动汽车/故障诊断/等效电路模型/Simscape仿真Key words
Electric vehicle/fault diagnosis/equivalent impedance model/Simscape simulation分类
信息技术与安全科学引用本文复制引用
徐佳宁,梁栋滨,魏国,朱春波..串联电池组接触电阻故障诊断分析[J].电工技术学报,2017,32(18):106-112,7.
