面向打滑工况的列车运行控制系统限速优化研究
滕昌敏1姜雪娇2李飞1
Optimization of Train Speed Limiting Strategy in Control Systems under Wheel Slip Conditions
TENG Changmin1JIANG Xuejiao2LI Fei1
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作者信息:1.卡斯柯信号有限公司， 200436， 上海；
2.卡斯柯信号有限公司成都分公司， 610036， 成都
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Affiliation:1.CASCO Signal Ltd., 200436, Shanghai, China;
2.CASCO Signal Ltd., Chengdu Branch, 610036, Chengdu, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.20246198
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中图分类号/CLCN:U284.48;U270.1+1
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栏目/Col:车辆制造与列车控制
摘要:
［目的］特殊外界环境（如雨雪天等）造成的列车运行产生空转打滑的现象，给城市轨道交通的运营带来了一定的安全隐患，极大程度地降低了乘客的乘车舒适度。因此，有必要对列车运行空转打滑产生的原理、原因及带来的影响进行深入的分析研究。［方法］依托昆明轨道交通6号线实际运营线路，对特殊环境下列车在运行过程中发生的空转打滑现象进行了阐述和分析，通过建模详细解析了空转打滑现象产生的原理及对列车运行造成的影响。在此基础上，提出区间阶梯式限速优化方法，通过仿真模拟的方法，找到能够在实践中运用的、最优的阶梯限速范围及阶梯限速值。［结果及结论］雨雪天大制动率一次制动进站比较容易发生空转打滑现象。采用阶梯式限速方法，允许列车按阶梯降速方式分段制动进站，能够有效缓解空转打滑现象。通过实验室仿真模拟及现场实际运用论证阶梯式限速方法的有效性。在采用了合适的进站制动率基础上，区间阶梯式限速能够明显优化列车的进站制动过程，有效地降低了列车空转打滑的产生，提高了雨雪天行车的安全性、稳定性和舒适性。
Abstracts:
［Objective］ Wheel idling and skidding caused by adverse external conditions (such as rain and snow) present safety risks to urban rail transit operations and significantly reduce passenger comfort. Therefore, it is necessary to conduct an in-depth analysis of the mechanisms, causes and impacts of train wheel idling and skidding during operation. ［Method］ Based on the actual operation of Kunming Metro Line 6, the phenomenon of wheel idling and skidding that occur under special environmental conditions is described and analyzed. Through modeling, the mechanisms behind wheel idling and skidding their impact on train operation are examined in detail. On this basis, a segmented stepwise speed limiting optimization method is proposed. Using simulation analysis, the optimal stepwise speed limit ranges and values suitable for practical application are determined. ［Result & Conclusion］ During rainy and snowy conditions, wheel idling and skidding are more likely to occur when trains apply a single high-rate brake during station approach. The proposed stepwise speed limiting method allows the train to decelerate in segments, which can effectively alleviate wheel idling and skidding. Through laboratory simulations and field validation, it is demonstrated that, with an appropriate station approach braking rate, segmented stepwise speed limiting significantly improves the braking process, effectively reduces the occurrence of wheel idling and skidding, and enhances operational safety, stability, and comfort under rainy and snowy weather conditions.
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