With the rapid development of electric vehicle and its charging piles

the EV charger will be a kind of important nonlinear load in the power grid.New type charger mostly adopts unit power factor PWM rectifier with high power factor

but it will produce above 40th ultra characteristic harmonic and existence of dead zone of PWM modulation will also lead to low order uncharacteristic harmonics in network side.In this paper

the harmonic characteristic of new type rectifier based on PWM control is analyzed

and the spectrum characteristic is proved by simulation and test result of a charging station.electrical vehicleschargerPWM rectifierharmonic