An Energy Efficiency Measurement Scheme for Electric Car Charging Pile

Abstract

As the rapid development of electric car, the charging equipment is constructed in a large number. The charging load has an effect on the grid. It’s necessary to assess the level of charging equipment energy efficiency. This paper has designed an energy efficiency measurement scheme for electric car. It can measure the power loss of each part during charging and the result can trace to the source. Based on the loss distribution, it can be used for energy conservation of electric car. From the result of charging pile simulation, it can be seen that fundamental electric energy meters can be used in the grid and the charging piles just input harmonic current to the grid.