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介绍了基于 GPS同步采样在继电保护和自动装置等方面的作用 ,提出了实现 GPS同步采样的方案 ,详细给出了基于 GPS同步采样单元的设计方案 ,并给出了其在故障定位和输电线路参数测量中的应用举例。现场运行和试验结果证明 :基于 GPS同步采样单元满足了电力系统对高精度同步采样的要求。
This paper introduces the function of synchronous sampling based on GPS in relay protection and automatic device, proposes a scheme to realize GPS synchronous sampling, and gives the design scheme of synchronous sampling unit based on GPS in detail. Finally, it presents its application in fault location and power transmission Application example of line parameter measurement. Field operation and test results show that the GPS-based synchronous sampling unit meets the requirements of the power system for high-precision synchronous sampling.