摘要
针对青岛地铁11号线列车通过折返线断电区时,电源中断导致的过压故障,通过检测支撑电容电压变化斜率加快正线断电区判断,以提高逆变器封锁脉冲信号、断开主接触器的速度为手段,有效解决列车进入断电区产生的过压故障。仿真分析、模拟试验和正线试验结果表明,采用电压变化斜率检测后,可有效解决列车经过断电区时出现的过压故障,并且满足青岛地铁11号线列车在各折返线断电区保护需求。
In view of the overvoltage fault caused by power interruption when trains pass through the outage area of the turn line on Qingdao Metro Line 11, it is possible to accelerate to judge the outage area of the main line by detecting the supporting capacitor voltage variation slope, thus to effectively solve the overvoltage fault caused when a train enters the outage area, by improving the inverter blocking impulse signal and the speed of disconnecting the main contactor. The results of simulation analysis, simulation test and main line test show that by means of voltage variation slope detection, it is possible to effectively solve the overvoltage fault caused when a train enters the outage area, and meet the protection demand in each turn line outage area on Qingdao Metro Line 11.
作者
王颖
葛航奇
李政达
苏全锋
WANG Ying;GE Hangqi;LI Zhengda;SU Quanfeng
出处
《铁道技术监督》
2022年第6期30-33,共4页
Railway Quality Control
关键词
地铁动车组
断电区
辅助电源系统
过电压保护
电压变化斜率
Metro EMU
Outage Area
Auxiliary Power Supply System
Overvoltage Protection
Voltage Variation Slope
