重载列车平稳运行的空电联合制动匹配控制  

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

作　　者：马志强 王竣渝 魏咪 王青元[2] MA Zhiqiang;WANG Junyu;WEI Mi;WANG Qingyuan(Shuohuang Railway Development Co.,Ltd.,Suning,Hebei 062350,China;School of Electrical Engineering,Southwest Jiaotong University,Chengdu,Sichuan 611756,China)

机构地区：[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

出　　处：《机车电传动》2023年第4期71-76,共6页Electric Drive for Locomotives

基　　金：国家重点研发计划项目(2021TFB2601504)。

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。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 

分 类 号：U292.921[交通运输工程—交通运输规划与管理]