Research on Time Synchronization Technology of Heterogeneous Network in Distribution Network Based on 5G

At present, high-precision time synchronization technology plays an important role in many industries. In smart grid, wide area measurement system (WAMS), event sequence recording (SOE), and fault recording all need unified reference time for synchronization, which improves the application level of power grid accident analysis and stability control, and improves the power supply network efficiency. It can improve grid reliability and efficiency. This paper designs the time synchronization technology of heterogeneous network in distribution network with the help of 5G URLLC network technology. It can switch clock types according to different synchronization regions, and can coordinate time synchronization between heterogeneous networks, without additional protocol overhead and equipment development cost, and has good network compatibility.