A Bidirectional Battery Charger for a Wide Range of Electric Vehicles

The design and operation of the modified SEPIC converter-based bidirectional battery charger for a wide range of electric vehicles (EVs) are presented in this work. The wide range of EVs includes an electric two-wheeler (e2W) and an electric car. Therefore, the design of a modified SEPIC converter is carried out to charge an e2W with a 72 V battery and an electric car with a 240 V battery. Along with satisfactory charging operation, compliance with the IEC standard is the major advantage of the presented battery charger. Furthermore, the modified SEPIC converter-based battery charger has the advantage of bidirectional operation. To verify the effectiveness of the presented battery charger grid to a vehicle (G2V) is analyzed with the ideal grid voltage. In addition, the efficacy of the charger is verified with amplitude variations in the grid voltage. Lastly, the presented charger is tested for a vehicle-to-home (V2H) operation to verify the efficacy during the bidirectional operation.