摘要
牵引传动系统和辅助供电系统是城轨列车的核心子系统,为提高牵引及辅助供电系统运行可靠性,通过对现有系统检修维护方式展开数据分析、现场调研,总结牵引及辅助系统故障诊断预警需求,基于外部故障现象、运行环境数据、故障数据等信息建立了一套城轨列车牵引及辅助系统在线故障诊断预警系统。考虑牵引及辅助系统故障特征信息复杂且具有模糊性,研究利用长短时记忆神经网络模型实现故障预警,利用模糊专家诊断方法实现故障诊断。该系统由车载网络系统、车载数据处理中心、地面大数据平台组成,自动完成故障数据生成、推送预警、故障诊断结果输出和检修排查建议,提高整车的可用性以及检修维护效率。现场试验结果表明,该系统可提前预警城轨列车牵引辅助系统大部分故障项点的异常及定位故障,优化了检修维护流程并提高检修维护效率。
The traction drive system and auxiliary power system are two core subsystems of urban rail transit trains.In order to improve their operational reliability,this paper proposed an online fault diagnosis and early warning system based on massive data information regarding external fault symptoms,operational environment,faults and so forth,carried out the data analysis and field investigation on the existing maintenance mode of these two subsystems,and summarization on their requirements of fault diagnosis and early warning.Considering that their fault characteristics information is complicated and fuzzy,the long short-term memory(LSTM)neural network model was built to realize fault early warning,and the fuzzy expert diagnosis method was used to realize fault diagnosis in the current study.Consisting of an onboard network system,onboard data processing center and ground big data platform,this online system can automatically generate fault data,push early warnings,fault diagnosis results output and troubleshooting suggestions,obviously improving train availability and maintenance efficiency.According to the field test results,this system can push early warnings in case of any abnormality of most fault items and locate faults of the two subsystems,thus optimizing the maintenance procedure and improving the maintenance efficiency.
作者
曹雪杰
何晔
单晟
周默灵
詹彦豪
陈林泉
CAO Xuejie;HE Ye;SHAN Sheng;ZHOU Moling;ZHAN Yanhao;CHEN Lingquan(Data and Intelligent Technology Center,Zhuzhou CRRC Times Electric Co.,Ltd.,Zhuzhou,Hunan 412001,China;Guangzhou Metro Group Co.,Ltd.,Guangzhou,Guangdong 510000,China)
出处
《机车电传动》
北大核心
2022年第6期80-86,共7页
Electric Drive for Locomotives
基金
国家重点研发计划项目(2016YFB1200402)。
关键词
城轨列车
牵引传动系统
辅助供电系统
智能运维
故障诊断
模糊专家诊断
LSTM
urban rail transit train
traction drive system
auxiliary power system
intelligent operation and maintenance
fault diagnosis
fuzzy expert diagnosis
LSTM
