System for identifying voltage sag domains generated based on multiple uncertainty scenarios

The present disclosure discloses a system for identifying a voltage sag domain generated based on multiple uncertainty scenarios. The system includes a processor, a photovoltaic monitoring device, an electricity monitoring device, and regulation hardware. The processor is configured to: collect photovoltaic output power information of each photovoltaic site based on the photovoltaic monitoring device deployed at the each photovoltaic site on a distribution network, and train a DCGAN based on the photovoltaic output power information; generate a photovoltaic output scene using the DCGAN; determine, based on the photovoltaic output scene, one or more given parameters, a sensitive load threshold, and one or more structural parameters of an electricity system, a voltage sag domain identification result corresponding to the one or more given parameters and the sensitive load threshold.