Automatic mapping availability analysis method and system for power system

The invention discloses an automatic mapping availability analysis method and system for a power system, and the method comprises the steps: training a graph availability evaluation model based on a plurality of groups of historical electrical wiring diagram files; analyzing the target electrical wiring diagram file, and constructing a diagram calculation model Glt according to diagram elements and a line topological relation; v, Egt; ; calculating the model Glt through the graph; v, Egt; respectively calculating graph availability evaluation indexes; calculating an availability value based on a graph availability evaluation model and evaluating a score to obtain an evaluation result; and generating a graph overall analysis report according to the availability evaluation index calculation value and the evaluation result. The availability level of various existing electric power system electrical wiring diagrams is automatically and rapidly analyzed through a machine learning method, and a parameter model is a