城市轨道交通列车紧急自牵引方案研究

On Emergency Self-traction System for Urban Rail Transit Trains

目前,城市轨道交通列车的行驶完全依赖于外部电力供应,这就限制了断电情况下列车移动的灵活性。提出了基于车载储能装置的运营列车在外部供电瘫痪的紧急情况下的自行牵引移车方案,并对系统架构、储能装置的设计及列车运行工况等进行了分析。该方案可极大地提高列车移动的灵活性,将会在紧急救援中发挥积极作用。随着储能技术、电力电子技术日益成熟及其成本的降低,自牵引技术将会在列车上逐步得到实际应用。

The running of urban rail transit vehicles depends on the external power supply, which limits the flexibility of the externally unpowered trains. Based on the on-board en- ergy storage system, a scheme of emergency self-traction system （ESTS） for main line trains is proposed when the external power supply breaks down. The architecture of ESTS, the design of energy storage system and the opera- tion conditions of trains are analyzed. The new scheme im- proves greatly the flexibility of the trains on main lines, and plays an important role in emergency rescue. ESTS will be gradually utilized in trains with the development of ener- gy storage technique, power electronics and the reduction of the system cost.