架空线路非接触式动态容量监测系统分析及应用

Analysis and Application of Non⁃Contact Dynamic Capacity Monitoring System for Overhead Line

针对架空线路非接触式动态容量监测系统进行分析。该系统通过散热指数监测仪将采集的有关散热指数环境数据等信息以无线方式发送到主站进行分析计算,将线路散热指数环境数据及动态容量等信息经用户系统提供给用户,实现对导线温度及动态容量的实时测量。该系统可进一步实现运行方式决策辅助、事故紧急状态保供电、线夹发热线路的负荷控制及对跨越物安全距离不足的负荷控制等,从而实现线路送电能力的数字化、精益化,最大限度提升输电设备的经济效益。该系统测量精准,结构简单,传感器数量少,且无需停电安装维护,具有广泛的适用性。

This paper analyzes the non⁃contact dynamic capacity monitoring system,by designing a device equivalent to the equivalent heat dissipation model of the wire and building a wireless communication system,the collected information about the heat dissipation index environment and other information is sent to the master station wirelessly.Analysis and calculation are performed by the master station,and the information such as environmental data and dynamic capacity of the line heat dissipation index are provided to the user through the user system to realize real⁃time measurement of the temperature and dynamic capacity of the wire,and further realize the decision⁃making assistance of the operation mode,power supply in the emergency state,load control of line clip heating line and load control of insufficient crossing the safety distance of objects,so as to realize the digitalization and lean transmission capacity of line and maximize the economic benefits of transmission equipment.The advantages of this method are accurate measurement,simple structure,small number of sensors,and no need for installation and maintenance with power cut,which improves its applicability.