The invention discloses a
power grid operation situation analysis
system combined with a
knowledge graph, which relates to the technical field of intelligent power grids and comprises a
power grid data acquisition module, a
power grid feature extraction module, a monitoring information
event analysis module, a power grid graph construction module and a power grid event intelligent research and judgment module. The power grid
data acquisition module acquires power grid data, the power grid
feature extraction module extracts features of the power grid data, the monitoring information
event analysis module outputs an overhaul
label, a fault
label, an associated equipment
list and a
fault list, and the power grid graph construction module generates a power grid
knowledge graph and outputs a
fault propagation path and an out-of-limit threshold. And the power grid event intelligent research and judgment module pushes abnormal data and fault information. According to the method, automatic cleaning of massive monitoring signals, intelligent fault research and judgment and cross-
station propagation path analysis are realized through
natural language processing and
machine learning technologies, manual intervention is reduced, the
fault recognition accuracy is improved, graded alarms are pushed in real time, and the power grid
situation awareness and emergency disposal efficiency is remarkably improved.