Experimental comparison of single-phase active rectifiers for EV battery chargers

摘要

An experimental comparison of single-phase active rectifiers for electric vehicle (EV) battery chargers ispresented and discussed. Active rectifiers are used in on-board EV battery chargers as front-end convertersto interface the power grid aiming to preserve the power quality. In this paper, four topologies of activerectifiers are compared: traditional power-factor-correction; symmetrical bridgeless; asymmetricalbridgeless; and full-bridge full-controlled. Such comparison is established in terms of the requirements forthe hardware structure, the complexity of the digital control system, and the power quality issues, mainly thegrid current total harmonic distortion and the power factor. Along the paper these comparisons are presentedand verified through experimental results. A reconfigurable laboratorial prototype of an on-board EVbattery charger connected to the power grid was used to obtain the experimental results.