电气化铁路牵引变压器调压参数设置研究

结合兰新高铁开通后CRH5型动车组列车多次出现电制动失效问题,根据西北地区外部电源电压偏差较大的实际,对牵引供电牵引变压器出口电压进行研究,对电制动失效原因进行系统分析,立足于供电系统对产生故障原因进行综合分析,从适应外部电源偏差,确保电气化铁路动车组、电力机车正常运行角度,提出电气化铁路牵引变压器调压问题和牵引变压器调压参数设置原则。

Study on Parameter Setting for Voltage Regulation of Electrified Railway Traction Transformer

In view of the electric braking failure CRH5 motor train unit running on Lanzhou Xinjiang high speed railway and with reference to the excessive external power supply voltage deviation in the northwest part of China,this paper studies the outlet voltage of the traction transformer and analyzes the failure cause of the electric braking system. The principle of parameter setting for voltage regulation of traction transformer of electrified railway is proposed based on the comprehensive analysis of the failure causes in perspective of the adaptation to the external power supply deviation and the normal operation of motor train unit and electric locomotive.