A novel Off-Board Interleaved Charger for EVs with G2H/G2VH/V2H Functions and Capable of Controlling Reactive Power

This paper proposes a novel off-board interleaved charger for electric vehicles (EVs) that can be used in smart homes and buildings as a rectifier converter. Working as rectifier to provide appropriate DC voltage for DC residential loads (G2H), providing DC output voltage and charging EV battery, simultaneously (G2VH), and returning stored energy in EV battery to DC load (V2H) are the operation modes of proposed charger. It has the ability to provide wide range of output voltage because of its exclusive DC-DC stage structure. It has sinusoidal AC input current with low total harmonic distortion (THD). A suitable control method is introduced, which can control the reactive power depending on smart grid commands or consumer requirements. One notable feature of proposed topology is the battery bases grounded which causes noise conduction and protect the circuit. In order to validate the converter's features, it is simulated in MATLAB/SIMULINK software and results confirm charger capabilities.