Study on the configuration scheme of time synchronization system in the substation

The time synchronization of substation is one of the key link of the advanced application of smart grid, and the mean of the time synchronization consist of synchronization and synchronization precision. This paper based on the analysis of the present situation of the application of the power system time synchronization system, different application (system) the requirements and time synchronization accuracy of time synchronization system existence question, on the basis of listed three different substation time synchronization system network scheme, through the analysis of advantages and disadvantages, presents the optimal time synchronization system of transformer substation network scheme.