市域轨道交通交流接触网可视化接地管理系统研究

Research on Visual Grounding Management System of City Rail Transit AC Catenary

目的:为了确保市域轨道交通线路接触网接地作业安全,提高检修作业的质量和效率,需研究具有远程操作和实时监控功能的交流接触网可视化接地管理系统。方法:阐述了既有轨道交通接触网的接地方式,以及传统人工接地方式存在的安全风险。明确了可视化接地管理系统的研究目标,分析了可视化接地管理系统的关键技术(在线精准实时验电、供电网络拓扑安全联锁及非同源设备状态双确认等)。研发了适用于交流接触网的可视化验电接地装置,并以遥控接地为例说明该系统的操作流程。结果及结论:远程可视化接地管理系统解决了传统作业方式操作效率低和安全保障不足的问题,可有效提升运维过程中人员和设备的安全保障能力,提高接触网检修效率和质量。

Objective:To ensure the safety of city rail transit line catenary grounding operation,improve the quality and efficiency of maintenance work,it is necessary to carry out research on developing an AC(alternating current)catenary visual grounding management system(hereafter VGMS for short)with remote operation and real-time monitoring functions.Method:The existing rail transit catenary grounding methods and the safety hazards of conventional manual grounding methods are expounded.The research objectives of the VGMS are clarified,and the key technologies of VGMS are analyzed(such as online accurate real-time power inspection,power supply network topology safety interlocking,and dual confirmation of non-homologous device states).A visual power inspection and grounding device suitable for AC catenary is developed,and the system operation process is illustrated using remote grounding as an example.Result&Conclusion:The remote VGMS solves the problems of low operation efficiency and inadequate safety assurance in conventional methods,effectively improving the safety capabilities of personnel and equipment in the operation and maintenance process,thereby improving the efficiency and quality of catenary maintenance.