High efficiency bridgeless single power conversion battery charger for electric vehicle

Abstract

High efficiency chargers having high power are required to charge the batteries of light electric vehicles. This work proposes a single-power-conversion battery charger without a bridge made up of a boost AC-DC converter that is isolated and with a circuit having resonance in series to suit this need. The circuit with a series resonance decreases by offering zero current switching, you may reduce output diode recovery losses, while conduction losses associated with the input diode rectifier are reduced by using a bridgeless arrangement. Furthermore, injection of current by direct and series-resonance allows the transformer to excite the core in both directions, providing for high power capabilities (Lakshmi and Hemamalini (2019) and Haghbin et al. (2013) [1,2]). In conversion of power using single stage, the feedback linearization-derived control algorithm is also built, allowing the suggested charger for power factor correction and output power regulation. This straightforward circuit construction results in good efficiency and a large power factor. The proposed charger's ideas that are theoretical are tested in an actual setting with a 1.7 kW prototype.