北京地铁八通线司机控制器故障原因分析及对策研究
邬春晖1李瀚2
Cause Analysis of Beijing Subway Ba Tong Line Master Controller Failure and Countermeasures
WU ChunhuiLI Han
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作者信息:1.北京市地铁运营有限公司运营二分公司， 100043， 北京
2.株洲菱创机电设备有限公司， 412007， 株洲
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Affiliation:The Second Operation Branch Affiliated to Beijing Mass Transit Railway Operation Co., Ltd., 100043, Beijing, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2023.06.036
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中图分类号/CLCN:TM571.2:U231
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栏目/Col:研究报告
摘要:
对北京地铁八通线司机控制器使用过程中警惕开关、牵引制动开关信号异常进行了故障研究。在已有的设计基础上对司机控制器警惕及牵引制动开关的工作工况进行建模仿真分析及对比验证，得出在其开关控制的继电器线圈侧并联肖特基二极管能有效降低通断时继电器线圈的电压波动，并缩短继电器的动作时间，改善警惕及牵引制动开关的工作条件。同时在现有设计上通过增大司机控制器牵引、制动开关信号的过渡角度，消除开关信号重叠区能有效解决司机控制器牵引制动信号叠加故障。新的设计方案提高了司机控制器警惕及牵引制动开关的工作可靠性，有效解决了现有设计故障频发的问题，提高了北京地铁八通线的运行可靠性。
Abstracts:
The alert switch failure and abnormal traction braking switch signal of the master controller on Beijing Subway Ba Tong Line are studied. Based on the existing design, the working conditions of the master controller alert switch and traction braking switch are modeled, simulated, analyzed and comparatively verified. It is found that a Schottky diode connected in parallel with the relay coil on the switch-controlled side can effectively reduce relay coil voltage fluctuation during switching and shorten relay action time, improving working conditions for alert switch and traction braking switch. Additionally, by increasing the transition angle of the master controller′s traction/braking switch signal and eliminating the signal overlapping area, the superposed failure of the master controller traction braking signal can be effectively solved on top of the existing design. The new design scheme improves the working reliability of the master controller alert switch and traction braking switch, effectively solving the problem of frequent failures in the existing design while elevating the Beijing Subway Ba Tong Line operation reliability.
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