基于物联网技术的变电站地网分布式监测系统研究

Research on substation ground network distributed monitoring system based on Internet of Things technology

针对变电站一二次地网多点连接不易查找的问题,采用物联网和分布式智能监测技术,实现变电站地网电压的实时监测。通过局域无线通信将采集的一二次接地网之间电压传输至系统后台,监测电压越限报警,报警信息传输至变电站运维人员。该系统通过局域无线组网,便于在变电站多个电压等级设备区进行安装部署,有效简化了监测系统部署环节,通过实验结果可知,该系统可有效监测变电站地网电压并预警。

Aiming at the problem that it is difficult to find the multi⁃point connection of substation primary and secondary ground network,the Internet of things and distributed intelligent monitoring technology are adopted to realize the real⁃time monitoring of substation ground network voltage.The collected voltage between the primary and secondary grounding grids is transmitted to the system background through local wireless communication,the voltage out of limit alarm is monitored,and the alarm information is transmitted to the substation operation and maintenance personnel.Through local wireless network,the system is convenient for installation and deployment in multiple voltage level equipment areas of the substation,and effectively simplifies the deployment link of the monitoring system.Through laboratory test,the system can effectively monitor the substation ground network voltage and give early warning.