The invention provides a digital twin three-dimensional model construction method based on a generative
large model, and the method comprises the steps: obtaining multi-source
monitoring data of a power distribution network, and
processing the multi-source
monitoring data into a training
data set; the method comprises the following steps: mapping multi-source
monitoring data into a multi-scale
tensor subspace through
tensor wavelet structured transformation, adaptively extracting spatial features through a learnable
wavelet kernel, and keeping the structural continuity of a
physical field in combination with a geometric prior regular term; constructing and training a
generative adversarial network through a training
data set; inputting and analyzing the physical parameter vector of the target scene, and if the topological similarity
score is lower than a preset threshold value, adjusting
noise vector regeneration; and if yes, outputting a three-dimensional model
tensor and importing the three-dimensional model tensor into a digital twin platform, and driving real-time
physical field visualization. According to the method, characteristics of a multi-
scale space structure and a nonlinear
physical field can be reserved, the physical rationality and generalization ability of the generated model are remarkably improved, and depth identification of topological attributes (such as hole
connectivity and surface defects) and local geometric defects of the three-dimensional model is realized.