输电线路绝缘子闪络在线监测系统

Research of On-line Monitoring System for Transmission Line Insulator Flashover

针对电力系统输电线路绝缘子闪络现象频繁发生且监测困难等问题,建立了以STM32F系列、内核为32位ARM的微控制器为控制电路核心的输电线路绝缘子闪络在线监测系统。介绍了系统控制电路硬件设计方案及软件流程,给出了模块硬件连接网络图与软件流程图。该系统以太阳能为供电来源,将闪络的产生转换为电信号,进而进行采集与处理。通过控制器控制显示模块与GPRS模块实现显示闪络发生次数与短信报警功能。该系统可准确定位闪络绝缘子和及时报警,为寻线检修提供有利条件,为输电线路安全运行提供可靠保障。

With the influence of pollutant or thunder, it is very often that flashover occurs. It is because that flashover is one of the main reason for transmission line insulators transmission line accident, so insulator flashover should be long-term monitored. According to the damage of flashover of insulators along the transmission line, this paper introduces a kind of online monitoring system about the transmission line insulator flashover. This system uses 32-bit microcontroller STM32 as the core. The principle of hardware circuit and software flow chart about the system are given in this paper. The system takes solar energy as power supply. It realized signal conversion that changes the flashover to electrical signals. The system can also realize the functions of monitoring flashover of insulator such as signal collection, processing, display, alarm etc. This system can provide favorable conditions for the transmission line maintenance and a reliable guarantee of transmission lines.