Power grid partitioning method, power grid partitioning device and terminal equipment

The invention is suitable for the technical field of power grid detection, and provides a power grid partitioning method and device and terminal equipment, and the power grid partitioning method comprises the steps: constructing a graph theory based on a power grid topological structure; obtaining a voltage harmonic distortion rate, and partitioning the vertex V based on the voltage harmonic distortion rate to obtain a plurality of first partitions; and obtaining a current harmonic distortion rate, and carrying out secondary partitioning on the first partition based on the current harmonic distortion rate to obtain a plurality of final partitions. According to the mode, the buses and the lines in the power grid are represented based on the graph theory, and on the basis of the graph theory, two times of partition processing are carried out according to the voltage harmonic distortion rate and the voltage harmonic distortion rate. Therefore, partition processing can be well carried out based on the spatial con