Combined electro-pneumatic braking matching control for smooth operation of the heavy-haul train

MA Zhiqiang; WANG Junyu; WEI Mi; WANG Qingyuan

doi:10.13890/j.issn.1000-128X.2023.02.103

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Combined electro-pneumatic braking matching control for smooth operation of the heavy-haul train

Electric Traction and Control | 更新时间：2024-08-02

- Combined electro-pneumatic braking matching control for smooth operation of the heavy-haul train
- Electric Drive for Locomotives Issue 4, Pages: 71-76(2023)
- 作者机构：
  
  1.国能朔黄铁路发展有限责任公司，河北肃宁　　062350
  2.西南交通大学电气工程学院，四川成都;611756
- 作者简介：
- 基金信息：
- DOI：10.13890/j.issn.1000-128X.2023.02.103
  CLC： U292.92⁺1
- Published：10 July 2023，
  
  Received：07 September 2022，
  
  Revised：26 October 2022，
- 稿件说明：
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马志强, 王竣渝, 魏咪, 等. 重载列车平稳运行的空电联合制动匹配控制[J]. 机车电传动, 2023(4): 71-76.

MA Zhiqiang, WANG Junyu, WEI Mi, et al. Combined electro-pneumatic braking matching control for smooth operation of the heavy-haul train[J]. Electric drive for locomotives,2023(4): 71-76.
马志强, 王竣渝, 魏咪, 等. 重载列车平稳运行的空电联合制动匹配控制[J]. 机车电传动, 2023(4): 71-76. DOI： 10.13890/j.issn.1000-128X.2023.02.103.

MA Zhiqiang, WANG Junyu, WEI Mi, et al. Combined electro-pneumatic braking matching control for smooth operation of the heavy-haul train[J]. Electric drive for locomotives,2023(4): 71-76. DOI： 10.13890/j.issn.1000-128X.2023.02.103.

摘要

重载列车在连续长大下坡道运行时需进行循环制动，导致司机驾驶困难，对列车安全平稳运行造成了极大的影响。为此，文章考虑空气制动力发挥动态过程，以列车运行环境和车辆机械特性为约束，建立重载列车多目标优化操纵模型，并采用二次规划算法进行求解。针对空气制动模型难以线性近似化，利用模式化速度曲线的主体特征一致性，将空气制动力作为一类列车已知控制力引入优化模型，实现空电制动控制在时间与空间上的解耦，并设计迭代算法解决了空气制动力与优化速度曲线的适配问题。最后将重载列车长大下坡道操纵准则量化为具体约束参数加入到模型中进行仿真，并与重载列车实际运行数据进行对比，结果表明，该算法能够有效减小车钩力，实现列车安全平稳运行。

Abstract

Heavy-haul trains need to be braked in cycles when running on long and steep downslopes

which causes great challenges for drivers and brings huge influences to the safe and smooth operation of the trains. In the current study

a multi-objective optimal operation model was established for heavy-haul trains firstly

considering the dynamic process in the application of air braking force

and the constraints due to the train operation environment and vehicle mechanical characteristics

and then was solved by the quadratic programming algorithm. Since the air braking model can hardly be linearly approximated

the air braking force was incorporated into the optimization model as a kind of train known control force

taking advantage of the consistent main characteristics of the modeled speed curve

resulting in the electro-pneumatic braking control decoupled spatially and temporally. Moreover

an iterative algorithm was designed to fit the air braking force with the optimized speed curve. Finally

the operation criteria for heavy-haul trains on long and steep downslopes were quantified and incorporated into the model as the specific constraints parameters for simulative study

and the results were compared with the measured operation data. The comparison results demonstrate that the proposed algorithm can achieve safe and steady operation of heavy haul trains by reducing coupler force.

关键词

重载列车模式化操纵二次规划迭代算法纵向冲动

Keywords

heavy-haul trainmodel-based operationquadratic programmingiterative algorithmlongitudinal impulse

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