Voltage out-of-limit analysis method, device and equipment and storage medium

The invention provides a voltage out-of-limit analysis method and device, equipment and a storage medium. The method comprises the following steps: acquiring node information in a power distribution network; according to the node information, performing cluster division on the power distribution network through an improved partition modularity function to obtain a power distribution network partition result; obtaining a target power distribution network partition through a grey wolf algorithm according to a power distribution network partition result; and updating node parameters in the target power distribution network partition to obtain a voltage out-of-limit analysis result. According to the invention, through the optimized modularity function, the indexes of the reactive power-active power sensitivity partition are established, the region with the most obvious voltage fluctuation is positioned through the grey wolf optimization algorithm, and the voltage out-of-limit analysis is carried out on the region