Application of Digital Twins in Smart Grids

Digital twin power grid can meet the needs of many kinds of scenarios, such as power production safety, stability, high efficiency, accurate positioning and so on, which is of vital importance to ensure the normal operation and development of smart power grid and improve the efficiency of power grid operation. Based on the physical and operational characteristics of smart grid, this paper constructs a digital twin power grid model from five dimensions: shape, data, business, energy flow and time. The full-state information perception, five-dimensional interactive mapping and three-state online deduction of power grid physical space and twin space are realized. At the same time, the corresponding digital twin models are given for some typical applications of smart grid, and the smart grid fault diagnosis model is analyzed emphatically. It is hoped that it can provide reference for the future development and ap-plication of digital twin technology in smart grid.