GPRS在谐振接地配电网带电故障定位中的应用

在配电网带电定位过程中,有些数据现场测量比较困难,需要远程测量后通过无线通信技术传送给定位装置。通用分组无线服务技术(General Packet Radio Service,GPRS)是一种常见的无线通信方式。针对谐振接地配电网,利用基于零序电流突变量的带电定位判据进行定位;设计了一套GPRS无线通信模块,传送定位过程中需要的零序电压,从而实现带电故障定位;通过试验对GPRS模块进行了检验。

Application of GPRS on Online Fault Location Method in Resonant Grounded Distribution Network

In the process of the online location in a distribution network, it is sometimes difficulty or troublesome to get some data, which must be obtained by distant measurement and then transmitted to the positioning device through wireless communication technology. GPRS is one kind of wireless communication method commonly used. Specifically for resonant grounded distribution network, online location criterion which is based on the mutation of the amount of zero sequence current is used to locate. A GPRS wireless communication module is designed to send zero-sequence voltage which is required for online location. This GPRS wireless communication module is probed to be effective by experiments.