Modeling and topology analysis of S-SCDN supply area based on graph database

In order to realize the mutual promotion between the energy management system and the traditional monitoring system under the development of active distribution network and ensure the high flexibility and reliability of urban distribution network under normal operation and fault operation, active distribution network needs new grid graph model, algorithm and parallel software computing platform. This paper proposes a modeling method of 10kV distribution network based on the combination of graph database and S-SCDN concept. Firstly, the PMIS data of the actual power grid are processed and converted into S-SCDN data. Then, the S-SCDN data are modeled in a reasonable graph database, and a generic switching station model is designed to complete the dynamic topology analysis of the S-SCDN supply area. The S-SCDN modeling based on graph database is compared with relational database modeling of traditional distribution network through case simulation data import, and the superiority of the model is verified.