The Study Of Synchronous Measurement And Using System Of Power System State Signals

Using advanced and practical technique to realize the synchronous sampling of power system state signals has important meaning for relay protector, the judgment of break down, System stability analysis and control and the parameter Measurement of Transmission Line under Operation etc. Recently the synchronous sampling method based on the GPS has been applied in power system. This thesis selects model GN-80 GPS receiver and SCM to design the sampling device. The high accurate time service is used to synchronize the sample clock signal to realize synchronous sampling. A timing-data-sampling system of power system state signals and its application is introduced in detail. It samples timing-data and saves them in a database, which provides the customer a platform of various information and functions including parameters calculation, harmonic analysis and so on. Through experimentation we approved that the program and system that we developed that can be satisfied the design requirement.