GPS在输电线路测量中的应用

The Use of GPS-Survey in Transmission Lines

全球定位系统(GPS)是随着现代科学技术的迅速发展而建立起来的新一代精密卫星导航与定位系统。而输电线路塔基选位大多数处于大山大岭中,当环境条件恶劣而无法通视时,就不能用传统光学仪器进行测量,通过借助GPS测量技术能更为方便、快速、准确地完成测量工作。本文总结了GPS在世界首条且最高电压等级的直流线路±800kV云南至广东直流线路工程中的测量运用。

With the rapid development of modern science and technology,Global Positioning System（GPS） established a new generation of precision satellite navigation and positioning system.Under harsh environmental conditions,the majority of transmission lines＇ foundations located at the great mountains can not be intervisibility.Therefore,through the use of GPS measurement technology can be more convenient,fast and accurately complete the measurement work.The following is my summary to the measurement on the DC line voltage ±800kV of currently the world＇ s first top rating,was used in the DC line measurement project from Yunnan to Guangdong.