Comprehensive Evaluation of Distribution Network Based on Knowledge Graph

In order to make the operating personnel enable to learn and master the knowledge of comprehensively evaluating distribution network so that they can perceive the operating status of distribution network comprehensively, through combining traditional comprehensive distribution method of distribution network with the knowledge graph technology and the latter possesses such features as interconnectivity and openness and can describe knowledge structurally and pictorially, a knowledge graph-based comprehensive evaluation method of distribution network was proposed. Firstly, a graph construction manner integrating the top-down manner with the bottom-up manner was utilized and from two aspects, i.e., the schema layer and data layer the graph was constructed and the constructed graph was divided into the entity graph of distribution network, the evaluation logic graph and the case graph. Secondly, the core construction technology and knowledge reasoning technology were analyzed, and combining with practical evaluation scene the ideas were provided for each link of the evaluation process. Finally, based on the proposed method the evaluation logic graph in practical evaluation case was displayed. Thus, the feasibility of the given method is verified.