I. Introduction
With the deepening of the dual carbon goal, the large-scale integration of new energy sources such as wind and light into the grid is becoming more and more important. However, due to the limited renewable energy in some areas of my country (such as Beijing), most of the clean energy is provided by the sending-end power grid, and if the clean energy is sent to the receiving-end power grid and cannot be consumed to the maximum extent, it will incur large power generation costs. Therefore, it is urgent to carry out research on the evaluation of the new energy consumption capacity of the receiving end power grid.