Power Factor Improvement Of Ev Charger Using Landsman Converter

Abstract

The design and employment of a novel battery-operated electric vehicle (BEV) charger with front-end power factor increase are the topics of this article. The suggested configuration replaces the present electric vehicle (EV) battery charger's traditional diode converter at the source side with a modified Landsman power factor correction (PFC) converter. The flyback isolated converter, which connects the PFC converter in series, controls how the electric car battery is charged, initially in constant current mode and then switching to constant voltage mode. The proposed PFC converter is governed by a single sensed entity to achieve the strong regulation of DC-link voltage and to ensure the operation of unity power factor. Comparing the suggested architecture to the standard one reveals that it delivers higher power quality, reduced device stress, low input and output current ripple, and low input current harmonics.