摘要
本文介绍TramWave地面供电系统供电模块的结构和安全负极的工作原理。由于有轨电车供电线路采用双边供电方式,而地面供电系统负极和安全负极在变电所的负极柜中同时被连接到负极母排上,所以回流电流将按照一定比例流入安全负极回路中,造成安全负极过流保护装置动作,影响系统正常运行。单向导通装置可以阻止负极中的牵引电流流入安全负极,从而保证系统的安全可靠运行。
The module of TramWame ground-level power supply system and the principle of safety negative is described.Since the traction power supply substation adopts the bilateral power supply mode,the power supply negative and safety negative is connected to the same negative busbar in the negative cabinet of the substation,then the power supply negative current will flow into the safety negative which cause the trip of the action of the production device and broken of the normal operation of the system.The unidirectional conduction device prevents the power supply current from following into the safety negative to ensure safe and reliable operation of the system.
作者
张松
刘宇婷
吴英帅
张哲
Zhang Song;Liu Yuting;Wu Yingshuai;Zhang Zhe(CRRC Dalian Co.,Ltd,Dalian,Liaoning 116022)
出处
《电气技术》
2020年第2期91-94,137,共5页
Electrical Engineering
基金
国家重点研发计划资助项目(2017YFB1201004-07)
