Study On The Allocation Of Oil In Zhoushan Islands

This paper mainly studies the oil trade of Zhoushan islands.On the one hand,the establishment of the oil reserve base of Zhoushan islands improves China's response to the risk of changes in the external oil market;on the other hand,it aims to establish and perfect the oil industry chain to form a mature oil trade center,and to grasp the pricing power and discourse power of oil products in the global scope.At present,Zhoushan islands is the most important oil storage and processing place in China,and Zhoushan islands is committed to building northeast Asia's fuel center.The oil trade of Zhoushan islands is stepping into the world stage rapidly.In the face of the rapid expansion of oil trade,especially since 2018,the rapid development of how to allocate storage oil meet the demand of mixing of different islands in Zhoushan islands,improve the operational efficiency of the port and ship,reduce the cost of product backlog in Hong Kong and allocate oil trade development in Zhoushan archipelago is one of the important problems needs to solve.The main research content of this paper is as follows:during the planning period,determine the transport routes and oil loading capacity of heterogeneous fleet in different islands(different ports)of Zhoushan archipelago,so as to meet the deployment requirements of various oil products.First of all,the Zhoushan islands is determined based on the theoretical analysis of product mix of the two types of problems,respectively is:demand determine more cycles and demand more uncertain cycle issues,to build the thinking path,vessel capacity,demand and supply,inventory constraint conditions,the supply and demand system,the mathematical model of optimal cost as the objective.The solution obtained the following conclusions:(1)In the demand determination model,there are differences between the multi-cycle allocation strategy and the single-cycle allocation strategy:if the ship's shipping capacity and oil supply are sufficient,the oil product satisfaction rate of the two is the same,and the advantage of the multi-cycle allocation strategy is reflected in the lower transportation and handling costs.If the shipping capacity or oil supply quantity is not sufficient,then the multi-cycle allocation strategy reduces the total allocation cost,especially the shortage cost,by coordinating the oil supply and shipping capacity of each cycle.The characteristics of the oil satisfaction rate of this strategy are as follows:?The fluctuation of oil product satisfaction rate is characterized by large amplitude in the early stage,decreasing with the number of cycles,and easy to be affected by the supply and demand situation.?The oil satisfaction rate can always reach 100%after a certain cycle.(2)In the demand uncertainty model,the laws between uncertain parameters,demand deviation value and target cost value are as follows:?When the uncertain budget is equal to 0,the robust optimization model becomes the demand deterministic model,and the demand value of each stage is replaced by the mean value.?When the uncertain budget is determined,the target cost increases with the increase of demand deviation value and the growth rate decreases.When the demand deviation value is determined,the target cost increases with the increase of uncertain budget and the growth rate decreases.With the increase of uncertain budget value,the target cost tends to be stable and the system has strong robustness.