A Pythagorean fuzzy set-based approach for evaluating power grid physical assets

With the continuous development of new power system, there are new changes and requirements for the types and functions of physical assets in power grid and the relationship between physical assets. In view of the current situation of assets in power grid enterprises, it is necessary to carry out efficient physical asset management, evaluate and manage physical assets. In this paper, according to the characteristics of grid physical assets under the new power system, the integrated fuzzy evaluation method based on Pythagorean fuzzy sets and contributing characteristics is used to evaluate the grid physical assets. Evaluating the physical asset condition of power grids in each region with this method, the results show that the best comprehensive level is in Jiangsu Province, and the worst is in Tibet Autonomous Region. Therefore, for the regions with poor asset quality, it is recommended to strengthen the technical transformation and upgrading of assets, and to strengthen the overhaul of assets with serious abnormalities in order to ensure the normal use of assets.