Construction and Application of Knowledge Graph in Electric Power Field

In the process of the gradual deepening of the electric power system informatization construction, a large amount of electric power data is accumulated in the electric power field (EPF). In order to effectively organize, manage and utilize the knowledge of large amounts of power data, knowledge graph (KG) technology is introduced into the field of electric power system. Firstly, the concept, classification and construction method of KG in EPF are introduced, and the key technology and difficult problems are elaborated in detail. Secondly, the typical application of KG in EPF is analyzed from three aspects: health management of electric power equipment, fault handling of power distribution network, and supervision and transaction of electric power market. Finally, the application prospect of KG in EPF is discussed, which provides the reference for further in-depth research on the application of KG technology in EPF.