arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2009.00880math.OC
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随机车队组合Optimization:评估城市物流中的电动交通

Stochastic Fleet Mix Optimization: Evaluating Electromobility in Urban Logistics

Satya S. Malladi, Jonas M. Christensen, David Ramrez, Allan Larsen, Dario Pacino

摘要:

在本文中,我们研究的问题,优化的规模和混合的电动和传统的车辆所拥有的公司提供城市货运物流服务的车队。在战略规划阶段考虑不确定的客户要求。这些请求在每个业务期间的业务开始之前公布。在操作层面上,提出了一种新的汽车动力消耗模型。除了机械功耗外,该模型还考虑了取决于环境温度的机舱气候控制功率和辅助功率,后者考虑了外部设备消耗的能量。本文将随机船队规模和组合优化问题描述为两阶段随机规划问题,提出了一种基于样本平均近似的启发式方法求解该问题,并针对每个运营期,采用自适应大邻域搜索算法确定运营决策和相关成本。该方法的适用性证明了通过两个案例研究在城市物流服务。

英文摘要:

In this paper, we study the problem of optimizing the size and mix of a mixed fleet of electric and conventional vehicles owned by firms providing urban freight logistics services. Uncertain customer requests are considered at the strategic planning stage. These requests are revealed before operations commence in each operational period. At the operational level, a new model for vehicle power consumption is suggested. In addition to mechanical power consumption, this model accounts for cabin climate control power, which is dependent on ambient temperature, and auxiliary power, which accounts for energy drawn by external devices. We formulate the problem of stochastic fleet size and mix optimization as a two-stage stochastic program and propose a sample average approximation based heuristic method to solve it. For each operational period, an adaptive large neighborhood search algorithm is used to determine the operational decisions and associated costs. The applicability of the approach is demonstrated through two case studies within urban logistics services.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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