货物列车编组计划与编组站负荷分工联合优化模型

Optimization Model of Freight Car Marshalling Scheme and Load Dividing & Combining in Marshalling Station

提出编组站解编负荷状态评价函数及曲线,以车流组织费用最小化和编组站解编负荷状态最佳化为目标,构建货物列车编组计划与编组站负荷分工联合优化模型,并考虑编组方案惟一性、解编能力和调车线数量等约束条件。利用目标规划法(GP)将模型由多目标转化为单目标,设计了相应的搜索生成方法并编程予以实现。最后基于实际路网案例,使用LINGO数学软件完成模型的求解和对比分析,验证了模型的合理性和有效性。

This paper puts forward the evaluation function and curve of uncoupling load status in marshalling station.With the target of minimum cost of train flow organization and optimization of uncoupling load status in marshalling station,the optimization model of freight car marshalling plan and load dividing combining in marshalling station is established,and the restriction condition,such as uniqueness of marshalling scheme,uncoupling capacity and shunting track number,were all considered.By using the GP method,the model was transferred from multi-goal into single goal,and corresponding search generating method was designed which programme had realized.In the end,based on the examples of actual railway network,the paper completes the model＇s solution and contrastive analysis by using the LINGO mathematic software,and validates the rationality and validity of the model.