A Survey of Emergency Self-Running Power Supply Schemes for Rail Transit Vehicles

摘要

When the power supply fails, the rail transit vehicles stay in place and wait for rescue, which not only has great hidden danger, but also affects the efficiency of train operation. In order to solve this problem, we could equip the train with an energy storage system that would enable the train to run to the nearest stop. According to the installation position of the energy storage system, the emergency self-running power supply scheme can be divided into vehicle type and ground type. According to the output voltage level of the energy storage system, the emergency self-running power supply scheme can be divided into low-voltage, medium-voltage and high-voltage. In this paper, the research status and hot issues of emergency self-running power supply scheme for rail transit vehicles are summarized, and the characteristics and shortcomings of each technical scheme are analyzed. Finally, the future research direction and hotspot of emergency self-running power supply scheme is pointed out.