Research On Power Quality Analysis And Improvement On Charging Equipment Of Electric Vehicle

Electric vehicles as a new round of economic growth and achieve a breakthrough in the fundamental way to transport energy transformation, has become the world's major automobile manufacturers and the common strategic choice and strategic choice of countries in the automotive market. Pure electric vehicle charger is a typical non-linear device, so a large number of electric vehicle charger is bound to seriously affect the promotion of the grid power quality, which is charging station construction issues which must be considered.Firstly, in-depth study of the electric vehicle status and development trend, and in-depth analysis of the general reasons for charging equipment generates harmonic, in this based on the analysis of power system harmonics on the harm, focusing on the electric car charging stations harmonic characteristics were studied. Secondly, the use of Mat lab software to build a single charger and charging station simulation model to analyze them separately for charging machines chosen, the process of building charging stations provide a basis for harmonic control. Finally, from three different perspectives charger harmonic governance programs, the charger supplier of harmonic control, harmonic control design units, grid side (charging station put into operation) harmonic control, the whole process of the electric car charging station for power quality improvement. And silver Chuanhai Po Ningxia Electric Vehicle Charging Station, for example, the existence of harmonic problems in operation, and gives management the proposed measures and implementation effect.