GPS卫星时钟原理及其在水电站的应用

Theory of GPS satellite time reference unit and its application in hydropower plant

简要介绍GPS卫星时钟的原理及系统的组成,论述了在水电站利用GPS卫星时钟的对时信号实现水电站微机控制与保护装置时钟的同步的意义和接线方法,GPS卫星时钟的同步既是水电站日常运行记录及事故原因分析的需要,也是保证水电站安全运行、提高运行水平的重要措施。

Based on a brief introduction of the theory and composition of GPS satellite time reference unit, the author demonstrated the meaning of clock calibration order from GPS time reference unit for clock synchronization between HPP micro-computer control system and protection device. The wiring method is also presented. For a hydropower plant, GPS time reference unit is not only a necessity for daily operation logs and fault analysis, but also a significant measure to ensure safe operation and improve operation level.