Research on Digital Twin Network Architecture for Power Grid Telecommunication System

Large power grid telecommunication system is the base of smart grid. With the development of new power system, the interaction among aspects of power grid (source, grid, load, storage) becomes more and more frequent. So the operation environment of telecommunication system becomes more and more complex. With the higher communication requirements of new power system, it is necessary to improve the ability of telecommunication system perception and operation control for power system. In this paper, an overall architecture of Digital Twin Network (DTN) for power grid telecommunication system is proposed. The architecture contains three layers (DTN physical layer, network layer and application layer), three domains (DTN data domain, model domain and management domain). The Digital Twin Network architecture can support the wide range and multi-layered telecommunication system state perception. It provides supports for the telecommunication department for system operation scheme virtual testing and verification in digital twin space. Combining with the intelligent analysis tools, it increases the support ability for telecommunication system of large power grid.