Method for identifying global operation state of wind power plant

The embodiment of the invention provides a wind power plant global operation state identification method, and relates to the technical field of wind power plants. The wind power plant global operation state identification method comprises the following steps: S1, identifying the operation state of a single fan; s2, based on a graph method, establishing an influence relation graph of a single fan on the wind power plant group, and storing the influence relation graph in a graph database; and S3, integrating the running state of the single fan in the S1 and the influence relation graph in the S2, performing state identification of the wind power plant group, and displaying a visual fault influence map by using a graph database. According to the method, the relevance between each component and each fan and the influence of a single fan on the generating capacity of the wind power plant group and the grid-connected system can be fully considered, and the operation state and the fault influence of the wind power p