接触网电气闪络与故障检测数据库案例的研究

Research on the Case of Electrical Contact and Fault Detection Database of Contact Network

接触网电气闪络现象发生在供电输出端,电力机车与受电弓脱离或剐蹭,造成铁道沿线设备跳闸和线路运营中断。通过接触网暂态电流过程分析,采集故障瞬态点通道数据,仿真模型针对接触网运行中如雷击、风雨、电压闪变和噪声干扰滤波具有预防作用。在综合分析接触网供电故障特点的基础上,建立数据库实时检测查询系统和案例分析库,通过参数对比与归类,能够迅速准确地分辨故障前后发生的问题,最大程度减小电气故障对接触网的影响,保证供电系统安全可靠地运行。

The electrical flashover of the contact network occurs at the output of the power supply. The electric locomotive is detached or rubbed from the pantograph, which will cause the tripping of equipment and the interruption of line operation along railway lines. By analyzing the transient current process of the contact network and collecting the fault transient point pass data, the simulation model has a preventive effect on the contact network operation such as lightning, wind and rain, voltage flicker and noise interference filtering. Based on the comprehensive analysis of the fault characteristics of the contact network power supply system, the database real-time detection and query system and case analysis database are established. Through comparison and classification of parameters, the problems occurring before and after the fault can be quickly and accurately resoved, and the impact of electrical faults on the contact network can be minimized, and the power supply system can be safely and relialy operated.