Method for estimating reliability of power distribution network based on segment model

The invention discloses a method for estimating the reliability of a power distribution network based on a segment model, and the method comprises the steps: extracting a power grid single-line topological file meeting the IEC-CIM standard based on a spatial information service platform of the State Grid Corporation of China; designing a line model, and classifying the line model; designing a line calculation and analysis module; carrying out the fusion of an analysis result of the line calculation and analysis module, giving a fundamental example through combining with a big-data analysis reliability index, and carrying out the estimation of the reliability of the power distribution network through employing a fault model consequence analysis method. According to the invention, an estimation model is generated automatically, and the method achieves the quick statistics of the reliability index of a load point. The method achieves the scientific data analysis, and reduces the repeated definition and segment l