Non‐Conductive Inductive Power Transfer Charging Gun of Electric Vehicle

Electric vehicles are gaining importance as they are a clean and cheap mode of transportation. Conductive charging gun is used to charge most of the electric vehicles. If the charging gun is not connected properly or is loose, then there is a possibility that the gun becomes hot, so the thermal sensor of the charging gun stops charging, or in some conditions it is reason of catching fire in the electric vehicle. In this paper, a non‐conductive inductive power transfer charging gun is proposed to charge an electric vehicle. Proposed non‐conductive inductive power transfer charging gun solves all problem which comes during charging of EV from a conductive gun. The electric shock hazard and safety related issues are addressed by this topology. In an electric vehicle, isolation should be provided, but in the case of charging an electric vehicle using a non‐conductive inductive power transfer charging gun, transmitting and receiving coils provide isolation, so the isolation stage can be removed. The coupling coefficient between the coil and the self‐inductance of the coil is calculated with the help of FEM software. The hardware prototype results are shown to validate that the proposed 1.5 kW non‐conductive inductive power transfer charging gun of an electric vehicle is demonstrated to transfer 15 A DC current load at 100 V DC output voltage and is validated for effectiveness.