Analysis of the Impact of Roof Distributed Photovoltaic Access on the Grid

With the advancement of the strategic goal of "carbon peaking and carbon neutrality", the favorable lighting geographical environment in the western region will attract a large number of distributed photovoltaic power stations. In this paper, the distributed photovoltaic absorption capacity of Xining area is calculated from two aspects of sub-county and sub-voltage level. By selecting typical photovoltaic power station for data analysis, proposed a voltage regulation strategy for grid operation. By using PSASP software for modeling, the impact of large-scale distributed power supply access on the short-circuit current of the system is calculated, further proposed suggestions on the safe operation of the power grid.