城市轨道交通车辆电池应急牵引功能的实现

Implementation of Rail Transit Vehicle Emergency Battery Traction

列车通过车载电池实现应急自牵引,将迫停于区间的列车自行牵引至就近车站,能有效解决因列车不能受电引起的应急处置问题,提高处置效率。分析了锂离子电池作为电池载体实现城市轨道交通车辆在AW3(超载)载荷条件下,在30‰坡道上爬坡500 m,再在平直道上运行1 000 m的电池系统的能量和功率需求,给出了既有列车实现车载电池自牵引功能的改造方案和相关改造要点。介绍了对既有列车(试验列车)的改造,以及为验证自牵引功能进行的试验。试验结果显示,列车应急牵引电池满足设计需求,并有一定的余量,改造方案可行。

Rail transit vehicle energency traction with the on-board battery could solve the problem of train interval stop caused by power failure,and enhance the disposal efficiency at the same time.In AW3 load condition,the lithium ion battery as the carrier could drive a metro train climb500 metersat a 30‰ ramp,then run 1000 meters on a straight path,the battery energy and power requirements are analyzed,the corresponding battery emergency traction schemes are discussed.Then the train battery traction test is carried out,the result shows that the lithium ion battery could meet the design demands for emergency traction.