Analysis of Power Supply Capability in Pilot Area of Beijing Distribution Network Reconstruction Based on Vague Set of Fuzzy Weights

The distribution network is an important unit in the power system that is most closely related to users, and its power supply capability directly affects the power supply reliability of the power system. In order to better evaluate the distribution network, this paper proposes a comprehensive evaluation method for power supply capability of distribution network based on Vague set of fuzzy weights. Compared with the traditional fuzzy theory, Vague set theory can better display the fuzzy information in each evaluation index, and takes the membership degree, non-subordination degree and hesitation into account to more fully reflect the effect of each evaluation index for the overall power supply capacity of the distribution network, and according to the expert experience to give weight to each evaluation indicator. Finally, the effectiveness of the evaluation method is verified by taking the pilot area of three distribution network in Beijing as an example.