城市轨道交通多系统协同的列车防滑控制策略优化
乔志远
Optimization of Train Anti-slip Control Strategies for Urban Rail Transit Multi-system Coordination
QIAO Zhiyuan
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作者信息:上海地铁维护保障有限公司，200233，上海
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Affiliation:Shanghai Metro Maintenance Support Co., Ltd., 200233, Shanghai, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2024.11.014
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中图分类号/CLCN:U284.48
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栏目/Col:研究报告
摘要:
［目的］在极端线路条件及天气情况下，城市轨道交通列车在正线运营中易出现低黏着造成轮轨空转或打滑现象，有必要对列车防滑控制策略进行优化。［方法］以打滑的黏着模型及判定为基础，分析了目前城市轨道交通车辆、信号系统典型的防滑控制逻辑，以及车辆与信号系统防滑交互原理，研究可行的多系统防滑控制策略。该防滑控制策略在三个方面进行了优化：在信号防滑策略中增大列车位置安全包络，在车辆与信号系统交互中进行测速系统联动及容限阈值的匹配，工务系统中进行轮缘润滑策略优化。［结果及结论］信号系统防滑控制策略优化后，在打滑发生时，仍允许列车以最大安全包络继续运行，可降低打滑事件对后车及运营的影响；车辆与信号系统交互优化策略增加了测速的准确性并优化了容限阈值范围；在雨雪天气下关闭钢轨轮缘润滑装置可进一步减小打滑概率。该多系统防滑控制策略在正线运用后的同期运营数据结果显示，车辆因打滑引起的紧急制动情况减小了34%，影响运营列车数减少了64%。
Abstracts:
［Objective］ Under extreme line and weather conditions, urban rail transit trains often experience low adhesion leading to wheel-rail slip or slide phenomena in mainline operation, making it necessary to optimize the train anti-slip control strategy. ［Method］ Based on the adhesion model and slip determination, the typical anti-slip control logics of current urban rail transit vehicle and signaling system, and the interaction principles between vehicle and signaling system anti-slip controls are analyzed. A feasible multi-system anti-slip control strategy is developed. This strategy makes optimization in three aspects: increasing the safety envelope of the train position in the signal anti-slip strategy; matching speed measurement system linkage and tolerance thresholds in vehicle and signaling system interactions; and optimizing the wheel flange lubrication strategy in track work system. ［Result & Conclusion］ After optimizing the signaling system anti-slip control strategy, trains are still allowed to continue operating within the maximum safety envelope when the train slips, thus reducing the impact of slip incidents on the following trains and overall operations. The optimized interaction strategy between vehicle and signaling system improves speed measurement accuracy and tolerance threshold ranges. Disabling the rail-wheel flange lubrication device during rain and snow weather further reduces the probabilities of slipping. The results of same period operational data after the implementation of multi-system anti-slip control strategy in mainline operation shows a 34% reduction in emergency braking events due to train slipping and a 64% decrease in the number of affected operational trains.
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