Method, system and device suitable for searching for cascading evolution fault path and medium

The invention discloses a method, a system, equipment and a medium suitable for searching a cascading evolution fault path, and belongs to the technical field of power systems. The method comprises the steps of obtaining network topology data of a current novel power system, performing load flow calculation on the network topology data, and determining a fault line of the current novel power system according to an obtained load flow calculation result; if the active power flow on other lines of the novel power system is influenced after the fault line is disconnected, searching a lower-level fault line based on the branch disconnection influence factor, and determining the lower-level fault line; and if the subordinate fault line triggers the search termination condition, the search is terminated, and a fault chain evolution path of the subordinate fault line is given. According to the method, the possible cascading evolution path of the initial fault can be searched for the trend-dominated cascading fault pr