电煤供应链多级库存多目标优化研究

发布时间：2018-05-09 09:38

本文选题：供应链多级库存 + 电煤供应链　；参考：《华北电力大学》2013年硕士论文

【摘要】：电能需求的增长以及我国仍长期以煤电为主的电源结构特点,决定了电煤供应链的运行效率会极大地影响我国电力的供应状况。目前煤电矛盾依然突出,电煤市场供需失衡、波动较大,电煤库存也随着电煤市场的波动而起伏,电煤库存不足或者电煤库存过量都会阻碍电煤供应链的持续运行,会增加煤电运营的压力、影响我国电能的正常供应,只有电煤供应链的各节点企业保有合理的电煤库存才能够保证电煤供应链的有效运作。而仅仅考虑电煤供应链库存成本最小的单目标优化已不能满足电煤供求复杂变化、电煤需求响应速度的要求,因此,这些现实要求对电煤供应链多级库存管理提出了挑战,管理者们需关注如何从多个目标的角度优化电煤供应链多级库存,使电煤供应链整体保持合理的库存水平和良好的运营效率。本文分析了我国电煤供应链的运作流程和特点,进行了电煤供应链结构设计,并剖析了电煤供应链多级库存管理的问题及原因,阐释了电煤供应链多级库存多目标优化的目标及意义。基于对电煤供应链多级库存的分析,本文构建了包含电煤供应链总库存成本、满足电煤需求的流程时间、电煤需求平均满足率三个子目标的电煤供应链多级库存多目标模型。通过多目标优化方法将三个子目标构造成一个总的目标函数,运用遗传算法进行多目标优化求解,比较分析电煤供应链多级库存单目标优化和电煤供应链多级库存多目标优化的结果,验证了电煤供应链多级库存多目标模型优化全面且有效。电煤供应链多级库存多目标优化的研究可以为电煤供应链各节点企业制定电煤库存策略、促进电煤供应链高效运行提供一定的参考。
[Abstract]:The growth of power demand and the characteristics of power supply structure which still focus on coal power for a long time determine the operation efficiency of power supply chain will greatly affect the power supply situation in China. At present, the contradiction between coal and electricity is still prominent. The supply and demand of the power coal market is out of balance and there are large fluctuations in the power coal market. With the fluctuation of the power coal market, the thermal coal inventory is also fluctuating. The shortage of the thermal coal stock or the excessive thermal coal stock will hinder the continuous operation of the power coal supply chain. It will increase the pressure of coal power operation and affect the normal supply of electric energy in our country. Only the enterprises in the power supply chain maintain reasonable thermal coal inventory can the effective operation of the power supply chain be ensured. However, considering the single objective optimization of the minimum inventory cost of power coal supply chain, it can not meet the requirements of complex change of coal supply and demand and the response speed of power coal demand. Therefore, these practical requirements challenge the multi-level inventory management of power coal supply chain. Managers should pay attention to how to optimize the multi-level inventory of power coal supply chain from the point of view of multiple objectives, so as to keep reasonable inventory level and good operation efficiency of power coal supply chain as a whole. This paper analyzes the operation flow and characteristics of the power coal supply chain in China, designs the structure of the power coal supply chain, and analyzes the problems and causes of the multi-level inventory management in the power coal supply chain. The purpose and significance of multi-objective optimization of multi-level inventory in power coal supply chain are explained. Based on the analysis of multi-level inventory in power coal supply chain, a multi-objective model of multi-level inventory in power coal supply chain is constructed, which includes the total inventory cost of power coal supply chain, the process time to meet the demand of power coal, and the average satisfaction rate of power coal demand. The three sub-objectives are constructed into a general objective function by the multi-objective optimization method, and the genetic algorithm is used to solve the multi-objective optimization problem. The results of single-objective optimization of multi-level inventory in power coal supply chain and multi-objective optimization of multi-level inventory in power coal supply chain are compared and analyzed. It is verified that the multi-objective model optimization of multi-level inventory in power coal supply chain is comprehensive and effective. The study of multi-objective optimization of multi-level inventory in power coal supply chain can provide a certain reference for the enterprises of each node of power coal supply chain to formulate the power coal inventory strategy and to promote the efficient operation of the power coal supply chain.
【学位授予单位】：华北电力大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：F274;F426.61;F426.21

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