摘要
为了实现变电站地电位自动监测系统,采用PC、单片机、光耦、电话线等设备组成自动检测系统,当地电位异常时,自动启动电路工作,采集、记录电位变化情况并上传至变电站中心控制室,在PC中保存地电位数据、绘制曲线,同时对串行数据通信设计了一种斩波式串行数据通信接口,使数据传输与远端电路馈电、话音(电话)传送共线,通过在变电站中的实验,得到监测系统可应用于变电站地电位自动检测的结果,同时为以后无线监测做好可能性的准备。
PC, SCM, optical coupler and so on were adopted to form a automatic monitoring system for detecting the ground voltage of transformer substations. When the ground voltage is abnormal, the monitoring system automatically starts the circuit to work. It collects and records the variation of the ground voltage, and sends the message to the control center of the transformer substation. The data of ground voltge is stored and the voltag curves are protracted in PC. In this system, a chopped serial data communication interface was designed for the data cololinear transmission with the feed of remote circuit and the tone in telephone. The system can be applied to detecting the ground voltage of transformer substations and is ready for wireless monitoring in the future.
出处
《现代电子技术》
2011年第13期155-158,共4页
Modern Electronics Technique
基金
福建省自然科学基金资助项目(2008J0178)
关键词
变电站
地电位
自动监测系统
斩波器
数据通信
transformer substation
ground voltage
automatic monitoring system
chopper
data communication
