一种城轨车辆用紧急逆变器设计

A Design of Emergency Inverter for Urban Railway Vehicle

介绍了一种城轨车辆用紧急逆变器,当旅客列车因为某种原因而导致其外部辅助电源不能正常输出时,它将车载蓄电池提供的直流电压转换成三相交流电压供给空调机组的通风机使用,维持其继续工作。分析了紧急逆变器的结构及控制方法,该紧急逆变器已装车运行,具有良好的可靠性及安全性。

An emergency inverter power supply for urban railway vehicle is introduced. When the auxiliary power supply can＇t work normally, it may convert dc power supplied by the battery into 3-phase ac power feeding ac motors of the ventilator for maintaining ventilation, The structure and control metheed of emergency inverter is analyzed. It is running with good reliability and safe.