Exploration of intelligent substation secondary system modeling based on virtual technology

In order to improve the modeling efficiency and operation and maintenance capability of the secondary system of intelligent substation, this paper proposes a 3D modeling and configuration method based on virtual technology. Firstly, modular modeling is completed by constructing a standard component family library to reduce the repeated design workload. Secondly, by combining the extended physical information model and logical information model, a unified model framework of device interfaces, communication protocols and connection relationships is established to realize the effective mapping of logical circuits and physical connections. Again, through the 3D information extension technology and automated screen grouping technology, automatic optimization of equipment layout and connection configuration is realized. Finally, the 3D model is integrated into the mobile intelligent operation and maintenance system of relay protection equipment, which provides important support for the efficient design of intelligent substations.