Method for constructing secondary equipment model based on knowledge graph

The invention discloses a method for constructing a secondary equipment model based on a knowledge graph, and the method comprises the steps: data collection and preprocessing, and the preprocessing comprises data cleaning and data integration; designing an ontology model, and providing a secondary equipment data knowledge graph architecture; establishing a knowledge graph, and constructing a knowledge graph model of the power grid secondary equipment based on the cleaned and integrated data; knowledge reasoning and query; visual presentation: carrying out visual presentation on the established knowledge graph model; and updating and maintaining the model, and regularly maintaining and updating the knowledge graph model along with the continuous updating and change of the secondary equipment information of the power grid. According to the invention, the fault risk of the equipment can be predicted, and maintenance measures are taken in advance, so that the reliability and availability of the equipment are imp