Knowledge graph-based energy storage power station fault identification method and device

The invention relates to the field of electric power, and provides an energy storage power station fault identification method and device based on a knowledge graph. The energy storage power station fault identification method based on the knowledge graph comprises the following steps: acquiring state data of an energy storage power station; the state data are input into a pre-constructed energy storage power station fault recognition model, the fault condition and evolution path of the energy storage power station are predicted, the energy storage power station fault recognition model is constructed according to a thermal runaway knowledge graph, and the thermal runaway knowledge graph is used for representing the incidence relation between the state data of the energy storage power station and the thermal runaway process; and judging the safety risk level of the energy storage power station according to the fault condition and the evolution path. According to the invention, the operation condition of the en