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Joint Economic Optimization of AGV Logistics Scheduling and Orderly Charging in a Low-Carbon Automated Terminal
WANG Xuan, WANG Bao, CHEN Yanping, LIU Hong, MA Xiaohui
Journal of Shanghai Jiao Tong University    2024, 58 (9): 1370-1380.   DOI: 10.16183/j.cnki.jsjtu.2023.027
Abstract   (2058 HTML8 PDF(pc) (3702KB)(557)  

To improve the current automated guided vehicle (AGV) charging strategy at automated terminals, which is not fully coordinated with the distributed power supply, a joint optimization method of AGV logistics scheduling and orderly charging is proposed. First, the synergetic relationship between AGV logistics scheduling and charging scheduling is analyzed, and a joint optimization framework is built. Then, a method to calculate the distance traveled by AGVs while considering the segregation requirements of trucks inside and outside the terminal is proposed. Afterwards, for the AGV charging module, the judgment conditions of AGV charging status and the pile selection method are defined. Furthermore, to minimize the cost of purchasing electricity at the terminal, a joint optimization model of logistics scheduling and orderly charging is constructed by considering time-of-use tariff, distributed power feed-in tariff, power balance constraint, state of charge constraint at the termination moment, upper and lower bound constraints of decision variables, and logistics scheduling constraint. Finally, a fast solution method based on improved particle swarm optimization algorithm is proposed, of which the effectiveness and economic efficiency are verified by an actual case of a terminal.


调度时间 岸桥1 AGV序列 岸桥2 AGV序列 岸桥3 AGV序列
00:15 76/72/59/60/43/64/45 51/73/70/39/57/74/55 55/63/41/47/68/54/48
00:45 41/47/48/52/54/63/68 40/44/49/62/66/69/75 39/43/45/51/55/57/59
01:15 39/43/45/51/55/57/59 41/47/48/52/54/60/63 40/44/49/62/66/68/64
01:45 40/44/49/62/64/66/68 1/2/3/4/6/10/39 7/8/12/41/43/45/47
Tab.4 Results of logistics scheduling parameters (00:15—01:45)
Extracts from the Article
为了验证所提方法在参数计算上的完整性,对本文方法调度结果进行分析.由于篇幅有限且所涉参数结果较多,在此分别展示00:15—01:45物流与有序充电调度结果,如表4和表5所示.
由表4可见,根据岸桥与AGV配比可知每座岸桥可同时调度7辆AGV.根据调度结果,同一时刻下同一辆AGV仅能服务于1座岸桥,且按照每15 min指派一轮的策略,AGV并不固定服务于某座岸桥,体现了物流调度的灵活性.
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