动车组黏着控制方法研究
马法运张佳波苗存绪林显琦杨其林曾凡飞
Adhesion Control Method for EMU
MA FayunZHANG JiaboMIAO CunxuLIN XianqiYANG QilinZENG Fanfei
-
作者信息:中车青岛四方车辆研究所有限公司，266031，青岛
-
Affiliation:CRRC Qingdao Sifang Rolling Stock Research Institute Co., Ltd., 266031, Qingdao, China
-
关键词:
-
Key words:
-
DOI:10.16037/j.1007-869x.2024.10.041
-
中图分类号/CLCN:U260.37∶U266
-
栏目/Col:研究报告
摘要:
［目的］针对动车组运行速度高、剩余加速度余量小、线路露天架设等特点，以及传统组合校正法判据提取准确性较差、转矩调节损失较多等不足，从速度采集及故障识别、判据提取、转矩调节三个方面进行分析优化，以提升动车组黏着利用。［方法］速度采集采用分段T法及中位值滤波方法，并对故障速度进行识别替换，以降低速度干扰或故障时对黏着控制的影响。选用加速度差值冲击率替代冲击率，并采用高通滤波器替代微分器，以减小复杂的轨面情况对黏着判据提取带来的影响。转矩调节时锁存上一触发空转/滑行时刻的转矩，并以此转矩为基准，实时计算转矩下降、上升步长；降、升转矩步长均分为10段，由大到小执行，以减小转矩损失。并以某型动车组为例进行了试验，来验证所选方法的可行性。［结果及结论］试验结果表明：在进行防空转、防滑试验的整个加、减速过程中，动轴速度偏离参考速度有限；转矩调节未有大幅度反复波动，列车冲击较小；对牵引、制动两次试验数据进行计算分析，得到牵引防空转、制动防滑行的黏着利用率均大于90%，黏着利用得到有效提升。
Abstracts:
［Objective］ Given the high operating speeds, minimal residual acceleration margin, and open-air track conditions of EMU (electric multiple units), as well as the deficiencies in conventional combination correction methods such as poor accuracy in criterion extraction and significant torque adjustment losses. It is aimed to optimize EMU adhesion utilization by analyzing and improving speed acquisition, fault identification, criterion extraction, and torque adjustment. ［Method］ A segmented T-method and median filtering method for speed acquisition is employed, and faulty speed data is identified and substituted to reduce the impact of speed interference/faults on adhesion control. The acceleration difference impact rate is used instead of impact rate and the differentiator is substituted with a high-pass filter to minimize the impact of complex track surface conditions on adhesion criterion extraction. For torque adjustment, it latches the torque at the previous wheel slip/skid trigger moment and uses this as a reference to calculate the reducing and increasing torque step sizes in real-time. The reducing and increasing step sizes are divided into 10 segments, executed from large to small to minimize torque losses. The feasibility of these methods is verified through experiments using a type of EMU as example. ［Result & Conclusion］ Experimental results demonstrate that during the entire acceleration and deceleration process of anti-slip and anti-skid tests, the deviation of the axle speed from the reference speed is limited. Torque adjustments do not exhibit significant repeated fluctuations, resulting in relatively less train impact. The traction and braking test data calculation analysis show that the adhesion utilization rates of traction anti-slip and braking anti-skid are both greater than 90%, effectively improving adhesion utilization.
- 上一篇: 高铁物流运输模式及其可行性
- 下一篇: 规划引领，立足实际，助力城市轨道交通高质量发展
过刊浏览
资料下载
友情链接