基于故障模式后果分析与动态故障树的高速铁路牵引变电所可靠性分析  

Reliability Analysis of High-speed Railway Traction Substation Based on Failure Mode and Effect Analysis and Dynamic Fault Tree Analysis

作　　者：吴健[1] 王思华[1] 

机构地区：[1]兰州交通大学自动化与电气工程学院,兰州730070

出　　处：《铁道标准设计》2016年第9期123-128,共6页Railway Standard Design

基　　金：国家自然科学基金(51567014);中国铁路总公司科技开发计划项目(2015X007-H)

摘　　要：为了提高牵引变电所供电可靠性,在考虑所内一次设备的情况下提出一种结合故障模式后果分析(FMEA)与动态故障树分析(DFTA)的方法来分析牵引变电所的可靠性。首先根据FMEA的工作结果来分析牵引变电所的故障原因,提出有针对性的预防措施;然后采用DFTA建立高铁牵引变电所的故障模型并定性定量分析,找出牵引变电所的薄弱环节。最后与传统故障树计算结果进行对比,结果表明:传统故障树建模存在较大误差,两种方法的结合相比仅使用一种可靠性分析方法更为实用。To improve the reliability of traction substation, the reliability of the electric traction substation is analyzed in view of the devices in the high-speed railway traction substation based on failure mode and effect analysis （FMEA） and dynamic fault tree analysis （DFTA）. First, the reason for the failure of traction substation is analyzed according to the results of FMEA to seek targeted preventive measures, and then DFTA is employed to establish the high-speed railway traction substation fault model for qualitative and quantitative analysis to find out the weakness of the traction substation. Finally, comparison with the traditional fault tree calculation is conducted. The results show that there is a big error in the traditional fault tree modeling, and the combination of the two methods is more practical in reliability analysis than only one method.

关 键 词：高速铁路 牵引变电所 可靠性 动态故障树 故障模式 后果分析 

分 类 号：U238[交通运输工程—道路与铁道工程] U224