Knowledge graph-based power failure range analysis method and system

The invention discloses a power failure range analysis method and system based on a knowledge graph, and the method comprises the steps: building a power grid topological structure knowledge graph schema according to a power distribution network topological structure and transformer equipment information in a power distribution network; performing data extraction on service data in the operation process of the power distribution network according to the power grid topological structure knowledge graph schema; generating a graph database according to a data extraction result, designing a power failure range acquisition algorithm, and optimizing the power failure range acquisition algorithm according to a preset threshold value; and according to the optimized algorithm, obtaining related content of the power failure range, wherein the related content of the power failure range comprises a transformer area name, a user contact way and a transformer area number. A high-performance graph database is used for stori