The impact of massive EV charging on distribution lines

Abstract

The large-scale charging of electric vehicles at the same time is bound to have a large impact on the distribution network and then reduce the stability of the grid, especially during peak hours when it is easy to overload the lines. In this paper, we combine battery capacity and charging power data of electric vehicles and user usage habits to model the charging load changes of electric vehicles at different scales. The impact of charging by EV owners on network load was also analyzed through case studies. Our results have a certain practical significance for the planning of power grid lines.