论文标题
电动汽车共享系统中的机队尺寸和充电器分配
Fleet Sizing and Charger Allocation in Electric Vehicle Sharing Systems
论文作者
论文摘要
在本文中，我们提出了一个封闭的排队网络模型，用于对电动汽车共享系统的性能分析，每个社区都有一定数量的充电器。根据需求分配，我们设计算法来计算最佳的车队规模和最大利润的充电器数量，同时保持一定的服务质量。我们表明，在每个充电点的车队规模和充电器数量方面，利润是凹入的。如果在城市内安装了更多的充电器，我们表明它不仅可以降低车队的规模，而且还可以提高城市中所有地点的车辆的可用性。我们进一步通过模拟表明，与平均充电时间相比，当充电时间的差异变得相对较大时，两个慢速充电器可能会胜过一个快速充电器。
In this paper, we propose a closed queueing network model for performance analysis of electric vehicle sharing systems with a certain number of chargers in each neighborhood. Depending on the demand distribution, we devise algorithms to compute the optimal fleet size and number of chargers required to maximize profit while maintaining a certain quality of service. We show that the profit is concave with respect to the fleet size and the number of chargers at each charging point. If more chargers are installed within the city, we show that it can not only reduce the fleet size, but it also improves the availability of vehicles at all the points within a city. We further show through simulation that two slow chargers may outperform one fast charger when the variance of charging time becomes relatively large in comparison to the mean charging time.
