轨道列车牵引系统的维护与分析

Maintenance and Analysis of Rail Trains Traction System

为了提高轨道列车的安全性和可靠性、降低轨道列车故障率,对轨道列车牵引系统进行研究。首先,分析了轨道列车牵引系统的组成结构和工作原理。对牵引系统展开深入分析,确定牵引系统可靠性的评价指标。在此基础上,提出可靠性评价机制。该机制的构建是以马尔可夫过程评估系统为支撑的。借助该机制,面向牵引系统进行分析,并给出最佳检修周期。可靠性评价结果表明:受电弓模块的最佳检修周期为4个月;高速断路器模块的最佳检修周期为3~5个月;牵引逆变器模块的最佳检修周期为0.9个月;牵引电机的最佳检修周期为1.6个月;牵引控制模块的最佳检修周期为1.4个月;牵引系统的可用度评估最佳周期为0.4个月。本研究为轨道列车的可靠性分析相关研究提供了一定的参考。

To improve the safety and reliability of rail trains and reduce the failure rate of rail trains, the traction system of rail trains is studied. Firstly, the composition structure and working principle of the traction system of rail trains are analyzed. An in-depth analysis of the traction system is carried out to determine the evaluation index of the reliability of the traction system. Based on this, the reliability evaluation mechanism is proposed. The mechanism is constructed with the support of Markov process evaluation system. With the help of this mechanism, the analysis is carried out for the traction system and the optimal maintenance cycle is given. The reliability evaluation results show that the optimal maintenance cycle for the pantograph module is 4 months;the optimal maintenance cycle for the circuit breaker module is 3~5 months;the optimal maintenance cycle for the traction inverter module is 0.9 months;the optimal maintenance cycle for the traction motor is 1.6 months;the optimal maintenance cycle for the traction control module is 1.4 months;and the optimal cycle for the availability assessment of the traction system is 0.4 months. This study provides a certain reference for the research related to the reliability analysis of rail trains.