摘要
列车驾驶策略优化通过优化列车速度曲线降低列车牵引能耗,在列车准点运行的前提下降低铁路系统运营成本。为了探究连续控制型和离散控制型列车节能速度曲线的节能效果差异,对比优化2种速度控制模式的列车节能速度曲线,并给出了相应的结论。分析列车牵引计算模型和节能运行工况模型,建立列车区间运行多目标优化数学模型。分析列车运行时间与列车运行能耗的关系,将区间运行时间最短的列车区间最速曲线作为参考基准,同时给出列车区间最速曲线生成方法。分别提出2种速度控制模式的列车驾驶策略多目标优化方法及其对应的优化算法决策变量通用设置规则,再采用粒子群优化、模拟退火和模式搜索法优化列车速度曲线。基于实例进行验证,生成2种区间运行时间方案下CRH3C型动车组列车从岳阳东站到汨罗东站的列车区间最速曲线、连续控制型列车节能速度曲线和离散控制型列车节能速度曲线。此外,对比水平线路上的3种列车速度曲线。结果表明:延长列车区间运行时间可以有效降低列车区间运行能耗;含有下坡道的变坡度线路上,连续控制型列车节能速度曲线节能效果更优;水平线路上,离散控制型列车节能速度曲线节能效果更优;2种速度控制模式下,粒子群优化的节能效果优于模拟退火和模式搜索;在优化算法寻优作用下,下坡道对列车驾驶策略节能优化具有促进作用;坡道附加阻力造成列车所受合力的变化,对列车运行过程的影响显著。
The optimization of train driving strategy reduces the traction energy consumption of train by optimizing the train speed profile,and reduces the railway system’s operating cost under the premise of on-time train operation.To investigate the difference in energy-saving effect between continuous control mode and discrete control mode of train energy-efficient speed profile,the energy-efficient train speed profiles of the two speed control modes were optimized and compared,and the corresponding conclusions were given.The train traction calculation model and the energy-saving train driving regimes were analyzed,and a multi-objective optimization mathematical model of train interval operation was established.The relationship between train running time and train operation energy consumption was analyzed.The fastest train speed profile of the section with the shortest section running time was taken as the reference benchmark,and the method of generating the fastest train speed profile of the section was given.The multi-objective optimization methods of train driving strategies for two speed control modes and their corresponding general setting rules for the decision variables of the optimization algorithm were proposed respectively,and then Particle Swarm Optimization,Simulated Annealing and Pattern Search were used to optimize the train speed profile.Based on the validation example,the fastest train speed profile of the section,energy-efficient speed train profile with continuous control,and energyefficient train speed profile with discrete control of CRH3C EMU train from Yueyangdong Station to Miluodong Station of two given section running times were generated.In addition,three train speed profiles on the level track were compared.The results have shown that:extending the section running time of train can effectively reduce the train energy consumption of the section;on varying gradients track,energy-efficient train speed profile with continuous control is more energy-efficient;on level track,energy-efficient train
作者
李蔚
刘高峰
赵思哲
于晓泉
韩锟
李茜
LI Wei;LIU Gaofeng;ZHAO Sizhe;YU Xiaoquan;HAN Kun;LI Qian(School of Traffic and Transportation Engineering,Central South University,Changsha 410075,China;China Railway Signal&Communication Co.,Ltd.,Beijing 100070,China)
出处
《铁道科学与工程学报》
EI
CAS
CSCD
北大核心
2022年第8期2169-2181,共13页
Journal of Railway Science and Engineering
基金
广西创新驱动发展专项资金资助项目(桂科AA20302010)
湖南省自然科学基金资助项目(2021JJ30828)。
关键词
高速列车
列车驾驶策略
列车节能控制
多目标优化
优化算法
high-speed train
train driving strategy
EETC(Energy-efficient Train Control)
multi-objective optimization
optimization algorithm
