Power grid system control method, device, equipment and medium

The invention discloses a power grid system control method, apparatus and device, and a medium, and relates to the technical field of power distribution network control, in response to a received regulation and control request, obtaining interaction information and target power data corresponding to a power grid system, and based on the interaction information and the target power data, determining a power distribution network. The method comprises the following steps: determining a fault state corresponding to a first flexible multi-state switch in a power grid system, matching a corresponding fault exit strategy according to the fault state, executing a fault exit operation on the power grid system according to the fault exit strategy, and when the first flexible multi-state switch receives an input starting instruction, starting the first flexible multi-state switch. Detecting whether the alternating current circuit breaker between the passive port and the passive power grid is in an opening state, and sta