Research on AHP-EWM based distribution network equipment interest rate portfolio evaluation method

Abstract

The current distribution network equipment utilization rate still lacks a comprehensive evaluation method, and the indexes are redundant and large in the calculation. In this paper, considering the influencing factors such as power supply reliability, network structure, load supply capacity and load characteristics, we construct a 1 Based on the hierarchical analysis method and the improved entropy weight method, a comprehensive evaluation method with a combination of subjective and objective is constructed; finally, the equipment utilization rate of a medium voltage distribution network in Guangdong is evaluated. The calculation results show that the method can effectively evaluate the utilization rate of distribution network equipment and provide a reference basis for improving the economy of the power grid, power grid planning and renovation work.