电动汽车应急救援站选址及资源配置

针对充电设施故障、车辆充电故障等因素会导致电动汽车无法充电,造成交通拥堵,威胁高速公路安全等问题,提出建立高速公路电动汽车应急充电救援站的策略,采用移动充电的形式对发生故障的充电站或车辆进行紧急救援。对应急充电救援站的基本职能进行探究,确定应急充电救援站选址的可靠性、经济性、时间最小性原则,在保证救援最大允许时间限度下,以救援站的建设成本与运行成本之和最小化为目标,优化选址方案,并根据充电站故障概率确定救援站中配备的充电车数量。8个充电站、12个救援站备选点的路网结构算例表明,该模型在保证救援时间的前提下,节约成本,满足经济性原则,证实了该选址定容模型的可行性。

Location and resource allocation of emergency charging station for expressway electric vehicle

The fault of charging facilities and vehicle charging unit led to the paralysis of electric vehicles, which could causes traffic congestion and threatens highway safety. In view of these problems, the strategy of setting up emergency charging rescue stations on the highway was put forward, which used mobile charging for the rescue of malfunctioned charging station or vehicles. The reliability, economical efficiency and the minimum time principle of rescue station site selection were determined, and the basic functions of emergency charging rescue station were investigated. The site selection scheme was sought to minimize the sum of construction and operating costs under the premise of guaranteeing the maximum allowable rescue time. The number of charging cars was determined according to the fault probability of charging stations. The feasibility of the model for site selection and size was proved by a road network containing eight charging stations and twelve selectable sites for rescue stations. The model met the economic principle by saving costs under the premise of guaranteeing rescue time.