Study on Status Monitoring and Early Warning Technology for Urban Rail Conversion System Based on Operational Demand
As of 2023,there're over 8,000 urban rail vehicles and tens of thousands of traction systems mounted on vehicles.With the increasing service duration of vehicles,the ageing and failure probability of the electric equipment is surging,and the huge scale of equipment for traction system has brought numerous difficulties and challenges to the on-site operation and maintenance personnel.This article investigates and explores in depth the difficulties and pains of the vehicle operation and maintenance personnel and studies the status monitoring and early warning technology for the conversion system in this direction.A cloud-edge collaborative traction PHM system architecture design has been formed,a three-level data analysis with"vehicle level+train level+line level"of traction system has been carried out based on the vehicle-borne edge terminal and the ground intelligent operation and maintenance platform,more than 20 development projects of status monitoring and early warning model for traction system have been completed,involving key components such as brake resistance box,support capacitor,three-phase filtering capacitor,high-voltage switch device,traction motor,filtering reactor,sensor,battery,etc.,providing users with services from four aspects:abnormal perception and fault prediction,planned repair mode optimization,key device life evaluation and efficient emergency maintenance.
urban rail vehicleconversion systemintelligent operation and maintenancecloud-edge collaborationstatus monitoringfault early warninglife evaluation
NETL
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