The Impact of Electric Vehicles Fast Charging on the Grid Voltage and Current Fluctuations
As the energy crisis becoming more and more serious, electric vehicles has become an important way to solve this problem. The difference of Popularity, type, charge time, charge style and charge characteristics of Electric vehicles make different effect on the Regional power grid, especially quick charge technology. In this paper, through the establishment of regional power grid model and the forecast of quick charge station load curve, we analysis the impact of charge station on voltage of the user side, furthermore, we analysis voltage loss and impulse current when the large power charger connected to the power grid, and verify the analysis by simulation. In order to reduce the impact on the grid, we should rationally plan the charge station and the reactive power compensation, thus enhance stability of power system.
Z. H. Li et al., "The Impact of Electric Vehicles Fast Charging on the Grid Voltage and Current Fluctuations", Applied Mechanics and Materials, Vols. 229-231, pp. 868-871, 2012