变电站GPS授时装置实时定时标检测方法探讨

变电站自动化系统大多采用全球定位系统（GPS）授时装置保障智能电子设备（IED）之间的时间同步，通常通过时频的方式检测其输出信号的准确性。文中提出了一种新的检测方法作为补充和完善，其核心是:应用可控的实时GPS对时脉冲，控制指定时刻的时标脉冲输出和开关的动作，检测GPS授时装置输出信号的准确性和正确性，既可检测GPS授时装置输出信号的实时准确性，也可检测输出信号携带的时间编码信息的正确性。

A Real-time Timing Mark Testing Method for Substation GPS Timed Device

It is customary for a substation automation system to use the GPS timed device to protect the time synchronization between IEDs,the time-frequency mode being generally adopted to test the accuracy of the output signal.This paper proposes a new testing method as a supplement and improvement with such important features as the application of the controllable GPS real-time timing pulse,the control of the timing mark pulse output at the designated moment,and the action of the switch,testing the accuracy and cor...