Abstract: The persistence and gradual change of the typhoons and other dynamic disasters, increase the complexity of the fault recovery process. In order to quickly restore the power to the active distribution network, a two-stage dynamic emergency operational strategy is proposed and the corresponding overall optimization model is established. The strategy includes the resource allocation plan, island partition scheme and cooperative scheme of the emergency repair and restoration. In the first stage, the pre-disaster resource allocation plan is made according to the travel time and attribute matching situation between the disaster-stricken areas and the repair resources. In the second stage, based on the disaster information of the affected areas, the island partition scheme and cooperative scheme of the emergency repair and restoration are formulated, and the corresponding schemes are adjusted according to the dynamic change of the disasters. The example of the IEEE33 bus system is simulated to verify the effectiveness of the strategy.

Key words: active distribution network, dynamic disaster, resource allocation plan, emergency repair and power supply restoration