车地一体化间歇式供电系统工程化方案

Engineering verification of vehicle-ground integratedintermittent power supply system

针对现有有轨电车间歇式充电模式平均效率低、变压器容量利用率低、运营成本高等问题,为了进一步提升平均能效,提出了车地一体化间歇式供电系统工程化优方案。首先对有轨电车运行、充电特性及充电拓扑进行研究,对供电系统能量利用进行量化,并对充电装置和地面储能系统的功能需求和配置要素进行研究,实现对地面储能系统的优化配置及经济高效运行,从而建立高效的车地一体化间歇性供电系统。最后,对优化后系统进行评估。以广州海珠试验段现有线路进行工程化验证,结果表明,对地面储能系统的优化,可以使充电站平均能效提升5.76%。

In order to solve the problems of low average efficiency of the intermittent charging mode of existing trams,low utilization of transformer capacity,and high operating costs,in order to further improve the average energy efficiency,an engineering optimization plan for the integrated intermittent power supply system of the vehicle and ground is proposed.This paper first studies the operation,charging characteristics and charging topology of trams,quantifies the energy utilization of the power supply system,and studies the functional requirements and configuration elements of the charging device and the ground energy storage system to achieve the optimization of the ground energy storage system Configuration and cost-effective operation to establish an efficient vehicle-ground intermittent power supply system.Finally,evaluate the optimized system.The engineering verification of the existing lines in the Guangzhou Haizhu test section shows that the optimization of the ground energy storage system in this paper can increase the average energy efficiency of the charging station by 5.76%.