Planning And Scheduling Optimization Of Automated Container Terminal-Microgrid System Considering Logistics Process

The coupling of the automated container terminal and the microgrid system can promote renewable energy consumption and reduce system operating costs through the complementary and synergistic operation of the joint system.The logistics process is an essential part of the automated container terminal operation,and automated guided vehicles(AGVs),as one of the vital transportation equipment,are responsible for the transportation assignments of the automated container terminal and the demand for supplementing electricity from the microgrid system.However,there is a lack of research on the detailed modeling of the logistics process and the exploration of the flexibility of the automated container terminal,which leads to the loss of potential benefits of the automated container terminal.Therefore,this thesis conducts an in-depth study on the planning and scheduling optimization of the automated container terminal-microgrid system and proposes a planning and joint scheduling method for automated container terminal-microgrid system considering the logistics process.The main research contents of this thesis are as follows:To address the problem of the low utilization level due to insufficient scheduling of AGVs in the logistics process,this thesis refines the modeling of the logistics process considering yards capacity and the flexibility of AGVs transportation.The model is based on the premise of completing the daily operation assignments of automated container terminals,and the total distance of empty AGVs is reduced by using the possibility of transporting between yards.The effectiveness of the refined modeling in improving the utilization level of AGVs is verified by setting up a comparative analysis.To address the problems that the long charging time of AGVs may affect transportation efficiency and the high cost of power swapping construction,this thesis proposes a charging/swapping synergistic strategy for AGVs.The strategy explores the flexibility of charging and swapping synergistic cooperation of AGVs and points out that it is possible to flexibly choose whether to replenish electrical energy through charging or swapping methods according to the current assignment status of AGVs themselves.Based on the charging/swapping synergistic model of AGVs,this paper also considers the influence of the microgrid system to plan the backup battery capacity of charging/swapping station of AGVs in automated container terminals.Through simulation analysis,the rationality of the charging/swapping synergy strategy and the economy of the backup battery capacity planning based on this strategy is verified.To address the issue that the behavior of AGVs supplementing electrical energy may directly affect the stability and economy of the microgrid system,this thesis proposes a joint scheduling strategy for the automated container terminal-microgrid system considering the logistics process based on a refined logistics process model and considering the planning result limitation of the backup battery capacity.The effectiveness of the joint scheduling strategy is verified by comparing the results with the separate scheduling of the automated container terminal and the microgrid system.