Evaluation System of Distribution Network Admission to Roof Distributed Photovoltaic Based on AHP-EW-TOPSIS

In recent years, roof distributed photovoltaic has gradually become the most widely used distributed power generation device, resulting in great changes in the development form of distribution network. The key to reliable operation of distribution network is to accurately evaluate the acceptance capacity of distributed generation. This paper constructs a photovoltaic optimization model based on AHP-EW-TOPSIS method. Firstly, an evaluation system including 8 evaluation indicators is constructed from the three dimensions of economy, reliability and stability. Secondly, use the entropy weight method (EW) and the analytic hierarchy process (AHP) to obtain the comprehensive weight of each indicator, and build a differentiated weight system; finally, based on the weight and the specific scores of each indicator, the power grid acceptance capacities of three regions are obtained, and can accurately find the specific reasons for the weaker power grid acceptance level. This paper provides a scientific basis for the planning and operation of a high-proportion distributed power distribution network.