基于GPS的同步采样及在保护与控制中的应用

全球定位系统（ＧＰＳ）是目前世界上传播范围最广、精度最高的时间发布系统，以ＧＰＳ时间为基准可以实现垮越整个电力系统的同步采样。这一新的同步采样技术的采用采用将大大推进继电保护与系统监控技术的发展。本文在简要介绍ＧＰＳ的基础上，探讨了同步采样的实现及在电力系统保护与控制中的应用。

GPS-BASED SYNCHRONIZED SAMPLING AND ITS APPLICATION IN PROTECTION AND CONTROL

Navstar global positioning system(GPS)is now the largest and the most precise timebroadcasting system on the world. By utilizing GPStime,the synchronized sampling over whole powersystem can be realized.This new technique will significantly promote the development of protection, moni-toring and controlling techniques of power system. With brief introduction to GPS,this paper discusseshow to achieve the synchronized sampling and practicalapplications of this technique in protection and con-trol.