Optimization of Access and Load Capacity Analysis for Electric Vehicle Charging Networks

With the rapid development of electric vehicle industry, in-depth discussion on the carrying capacity of electric vehicle charging network connected to the power grid has become an important direction. Considering that charging stations are dedicated lines, charging facilities in residential communities will become the focus. Through in-depth research on the specific impact of charging facilities on the load pressure, power quality, grid planning and investment of the grid, this paper proposes an innovative evaluation method for the carrying capacity of charging facilities in residential areas, which considers multidimensional simultaneous coefficients, evaluates the current capacity of the grid to connect to the charging facilities, guides the charging facilities to better connect to the grid, and ensures the friendly operation of electric vehicles. At the same time, a variable capacity demand model is proposed according to the user’s release coefficient, peak cutting and valley filling needs, etc. Combined with the actual residential area cases, the effectiveness and feasibility of the proposed strategy is further verified, and it provides strong support for the reasonable planning and development of electric vehicle charging network. It plays an important role in promoting the popularization of electric vehicles, reducing environmental pollution and improving energy efficiency.