成品油运输优化模型的研究与应用
Research and application of products oil transportation optimization model
-
摘要: 为降低成品油运输成本, 针对成品油从产地(炼厂) 至销售终端(加油站) 的全程运输优化问题, 分析了线性规划在成品油物流优化实际应用中运算数据量较大, 加油站和油库至发货地的单位数据不全等问题, 传统的一二次物流优化模型由于分次优化脱节, 影响整体优化效果。通过构造资源中心, 定义资源中心至炼厂、油库的运价公式, 建立新的综合运输优化模型, 并提出了相关计算方法。经过实例分析, 利用LINGO软件进行测算和求解, 结果表明: 该模型可以有效解决一二次运输优化模型中存在的分次优化脱节的问题, 优化后总运输费用较一二次运输优化模型优化结果低, 且解决了线性规划方法在成品油物流优化应用中运算数据量较大的问题。Abstract: When linear programming is applied in the optimization of products oil logistics, the quantity of operational data is huge and the unit data from oil stations and oil depots to the places of delivery is incomplete. In this paper, these problems were analyzed so as to reduce the transportation cost of products oil and realize the whole-course transportation optimization of products oil from the producing area (refinery) to the sales terminals (oil stations). It is shown that the overall optimization effect of the traditional first-order and second-order logistics optimization models are impacted by the disintegration between different models. Then, a new comprehensive transportation optimization model was established by constructing a resource center and defining the function of transportation price from the resource center to the refinery and the oil depot. Furthermore, its calculation method and procedure were put forward. Finally, based on the case study, the LINGO software was used to calculate and solve this model. It is indicated that this comprehensive transportation optimization model can effectively solve the disintegration between the traditional first-order and second-order logistics models. Its total transportation cost after the optimization is lower than results of the first-order and second-order transportation optimization models and the huge operational data during the application of the linear planning in the optimization of products oil logistics is reduced.