目的 建立电动车-无人机联合配送路径规划模型,以系统总成本最小化为目标,涵盖固定成本、能耗成本及碳排放成本,兼顾时间窗、载重与能源约束,为实现绿色低碳物流提供决策依据。方法 设计一种基于FCM聚类的多种群遗传算法,首先采用FCM聚类策略实现客户点在中转站间的优化分配,继而运用混沌初始化方法生成高质量初始种群,并通过子种群内及种群间的协同交叉变异机制提升算法性能。结果 在12个小规模算例中,CPLEX在限制时间内均可以求得最优解。模型规模较大时,CPLEX在限制时间内均无法求得最优解,部分算例能输出当前找到的最优上界解,其余算例无法给出可行解。相较而言,算法在求解时间上有着很大优势,平均运行时间分别为30.27 s和2.30 s,均优于CPLEX。与LNS-GA相比,MPCGA-FCM在求解质量上更优。结论 与CPLEX、大规模邻域搜索思想改进的遗传算法对比,本文算法在求解质量和求解速度方面均展现出显著优势,验证了该算法能够有效求解2E-VRPD问题优化配送路径,提升车机协同配送效率,降低配送成本。
Abstract
The work aims to establish a joint distribution route planning model for electric vehicles and drones, with the goal of minimizing the total system cost, including fixed costs, energy consumption costs, and carbon emission costs and also take into account time windows, load capacity, and energy constraints to provide a decision-making basis for achieving green and low-carbon logistics. A multi-population genetic algorithm based on FCM clustering was designed. Firstly, the FCM clustering strategy was used to optimize the allocation of customer points among transfer stations. Then, a high-quality initial population was generated with a chaotic initialization method, and the performance of the algorithm was improved through a collaborative crossover and mutation mechanism within and between subpopulations. In 12 small-scale examples, CPLEX could find optimal solutions within the time limit. However, for larger models, CPLEX could not find optimal solutions within the time limit, and some examples could only output the best upper bound solution found, while others could not produce feasible solutions. Compared to LNS-GA, MPCGA-FCM showed significant advantages in solving time, with average running time of 30.27 s and 2.30 s, both better than CPLEX. The experimental results show that compared to CPLEX and the genetic algorithm improved by large-scale neighborhood search, this algorithm demonstrates significant advantages in both solving quality and speed. It verifies that the algorithm can effectively solve the 2E-VRPD problem for optimizing distribution routes, improving the efficiency of vehicle-drone collaborative distribution, and reducing distribution costs.
关键词
车辆-无人机联合配送 /
改进遗传算法 /
碳排放 /
模糊C均值聚类
Key words
vehicle-drone collaborative distribution /
improved genetic algorithm /
carbon emission /
fuzzy C-means clustering
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基金
辽宁省社会科学规划基金项目(重点项目)(L20CGL012)