Field investigation of the power quality impact of electric vehicles in secondary residential systems

Electric vehicle (EV) charging sites in Brazil are still scarce. However, due to the large number of homes with their own garages in the country, it is believed that the growth of the technology will stimulate the use of residential charging stations (CSs). Because the EV is a load with significant power consumption and remains connected to the grid for several hours during its slow recharge, this article aims to analyze and identify the possible impacts associated with this condition from the point of view of the power grid and the electricity utility company and its influence on the power quality of low voltage urban networks. Therefore, real field measurements are used and analyzed according to Brazilian and international recommendations and standards.