Electric Vehicle Support Distribution Grid Emergency Power Protection Strategy after a Major Power Outage

In this paper, we consider the occurrence of extreme disasters (e.g., typhoons, rainstorms, etc.) that cause major power outages and disconnect the distribution network from the main network, which can only rely on distributed power sources and mobile power sources in the distribution network to restore power to the distribution network's lost loads. Among them, extreme disasters cause different degrees of damage to the distribution network lines, resulting in the formation of several different islands in the distribution network. The power and load distribution inside each island varies, and in order to maximize the balance of load restoration, mobile electric vehicles need to be dispatched and moved to important lost loads as important power supply resources to realize the source-load balance inside multiple islands, to enhance the efficiency of resource dispatch and the effect of important load restoration in the distribution network to a greater extent, and to realize the optimal on-demand allocation of electric vehicles within the city after the disaster. Finally, the correctness and feasibility are verified on the IEEE 33-node test system.