Research on Power Spatiotemporal Networking Technology Based on Beidou Reference Station

In order to meet the requirements of power system for time-frequency synchronization and high-precision positioning, and the higher accuracy of the integrated positioning timing service. In this paper, the similarity are analyzed between the power time-frequency synchronization network and the power Beidou ground-based enhancement network, the feasibility of spatio-temporal integration is pointed out, and a spatio-temporal integration network scheme based on the mutual support of heaven and earth is put forward. In the scheme, positioning and timing integrated solution calculation technology is adopted to improve the time-frequency accuracy of the equipment based on the precise position of the Beidou benchmark station. The overall design of the reference station equipment is carried out based on the integrated module of Beidou positioning and timing, and as the supplementary node equipment of the time-frequency synchronization network, the three-level common view timing and positioning integration network is formed. Finally, the networking environment was built based on the laboratory baseline field to verify that the time accuracy was improved from sub-nanosecond level to nanosecond level and the frequency synchronization accuracy was improved from 1E-12 to 1E-14 based on the precise position of the Beidou benchmark Station and the common view networking technology.