Impact of high permeability EV charging load on distribution network and its layout planning method

In the current ubiquitous electric Internet of things background, as the representative of new energy load, the research and production of EV have been widely concerned. Accurately and comprehensive analysis of the impact of large-scale EVcharging on the power grid will provide theoretical preparation for the development and application of EV, and provide basic guarantee for a large number of EV charging stations to access the power grid.Therefore, this report studies the typical simulation system, and studies the impact of large-scale EV charging load on the power grid from the aspects of safe operation, planning and constructionas well as economy of the power grid. The simulation verifies the impact of large-scale charging load on distribution network voltage and load rate. And analyzes the influence of different access locations and access capacities of large-scale EV charging on the power grid, puts forward the layout planning method of charging stations, and explores the typical structure and operation mode of distribution network suitable for EV charging load access. It provides theoretical preparation for the large-scale EV to be connected to the power grid and has important guiding significance for promoting the development of the power grid technology suitable for the large-scale application of EV.