Reasoning simulation of substation power grid fault events based on knowledge map technology

In order to cope with the increasingly complex situation of safe operation of power grid, this paper proposes fault event reasoning of substation power grid based on knowledge map technology. By using the method of knowledge map, the logical relationships such as co-reference relationship, causality relationship and time sequence relationship among substation monitoring events are established, and the rules and patterns among the events are described. Based on the power grid equipment entity and concept map, business logic map and historical case map, and according to the key information flow after fault signal analysis, the auxiliary decision of fault handling operation mode is made by using power grid operation and control logic, rules and experience knowledge. Realize the substation power grid fault analysis and processing function, and further improve the intelligent level of fault management.