Natural gas pipeline network gas supply reliability evaluation method based on pipeline network degradation model

The invention provides a natural gas pipeline network gas supply reliability evaluation method based on a pipeline network degradation model, and belongs to the technical field of natural gas pipeline network gas supply reliability evaluation. The technical problem to be solved is to provide the natural gas pipeline network gas supply reliability evaluation method based on the pipeline network degradation model. According to the technical scheme adopted for solving the technical problem, the method comprises the steps that the influence of compressor station degradation and pipeline random degradation factors on a natural gas pipeline network system is considered, and modeling is conducted on the compressor station degradation process and the pipeline random degradation process according to the different influence rules of the two degradation conditions on the gas supply amount of the natural gas pipeline network system; analyzing and calculating the probabilities of the pipe network in various operation stat