考虑动态定价的煤炭调运方案优化研究-交通运输系统工程与信息.pdfVIP

第17卷第4 期 交通运输系统工程与信息 Vol. 17 No.4 2017 年 8 月 Journal of Transportation Systems Engineering and Information Technology August 2017 文章编号：1009-6744(2017)04-0105-06 中图分类号：U 15 文献标志码：A DOI: 10.16097/j.cnki. 1009-6744.2017.04.016 考虑动态定价的煤炭调运方案优化研究 张 政，韦 伟，史芮嘉，许 奇，毛保华* (北京交通大学 城市交通复杂系统理论与技术教育部重点实验室，北京 100044) 摘 要： 煤炭坑口价格的变化与市场供求有重要联系.本文在煤炭坑口价格动态定价 的基础上，以煤炭产地和消费地间的煤炭调运量为决策变量，以煤炭流通过程中的总费 用最小化为目标，分别构建了煤炭调运系统优化模型和考虑消费者竞争的煤炭调运优化 模型，设计了遗传算法和Floyd算法相结合的求解算法.以我国内地煤炭调运问题为案例， 分析了价格变化特性、可调出量与消费量比例等因素对煤炭调运方案的影响.结果表明， 考虑消费者竞争时煤炭流通广义费用更低；随着煤炭可调出量与消费量比的增加，动态 价格较固定价格的煤炭流通广义费用下降更快. 关键词： 综合交通运输；煤炭调运方案；遗传算法；动态定价；消费者竞争 Optimization of Coal Allocation with Dynamic Price ZHANG Zheng, WEI Wei, SHI Rui-jia, XU Qi, MAO Bao-hua (MOE Key Laboratory for Urban Transportation Complex Systems Theory and Technology, Beijing Jiaotong University, Beijing 100044, China) Abstract:Abstract: The coal pit price is affected by the relationship of supply and demand. By considering the pricing mechanism of coal pit price, this paper takes the volume of coal allocation from one place to another as the decision variables, and aims at minimizing the total cost of coal circulation. Two models are constructed to optimize the coal allocation, which are from the perspective of managers and consumers respectively. Genetic algorithm and Floyd algorithm are used to optimize the coal allocation in China. Some factors influencing coal allocation are analyzed, which are the price mechanism, and the ratio of available coal and consumption coal. The result shows that the generalized cost of coal allocation is low