Comprehensive evaluation of transmission network planning scheme for large scale new energy integration

Abstract

Abstract The demand of large-scale new energy grid connection and transmission promotes the development of transmission network. In order to improve the accuracy of power grid planning scheme evaluation and select a better power grid planning scheme, a power grid planning scheme evaluation and optimization method based on analytic hierarchy process (AHP) is proposed. Firstly, the analytic hierarchy process (AHP) is used to establish the evaluation index system of power grid planning scheme, and the weight of each index is determined. Then, the evaluation index is taken as the input of entropy weight TOPSIS, and the relative paste progress C i + of each scheme and positive ideal, and select the scheme with the largest paste progress as the most appropriate scheme. The results of case analysis show that the method can reasonably determine the weight of evaluation index, accurately evaluate the power grid planning scheme, and provide a scientific basis for the selection of power grid planning scheme.