Urban power grid comprehensive evaluation method under weak connection high-proportion new energy access

The invention provides an urban power grid comprehensive evaluation method under weak connection high-proportion new energy access, and the method comprises the following steps: an index system of five dimensions, i.e., the life cycle cost, the short-circuit capacity adequacy, the power supply adjustment flexibility margin, the new energy consumption margin, and the AC/DC power grid strength are obtained through the analysis of a power system; weighting is carried out on the index systems of the five dimensions, and comprehensive evaluation scores are obtained; the urban power grid is evaluated according to the obtained comprehensive evaluation scores: in the planning stage, the scheme with the higher comprehensive evaluation score is used as the optimal planning scheme to implement construction; and in an operation stage, comprehensive evaluation scores of the urban power grid are studied, all scores are compared, and the dimension with the low score proves that the operation power grid has defects and needs