Performance Analysis of High Frequency Inverters for Charging Electric Vehicles Using Spiral Shape Transmitter and Receiver Coils

Inductive Power Transfer (IPT) Principle is used in this paper to provide a complete design approach for transferring power to Electric Vehicles (EVS). To transfer the power to EVS the IPT is divided into four categories, DC-AC converter, High-frequency inverter, compensation circuit, magnetic coupling, and AC-DC converter. In order to determine the effectiveness of power transfer between the coils,self-inductance of the coils, mutual inductance of the coils, and coupling coefficient, magnetic coupling is used. With the help of high-frequency switching of the inverter, the size of the converter can be reduced significantly. A 3D Modeling of the coils is done by using Finite Element Method (FEM) with ANSYS Maxwell Electromagnetic Simulation. At 1 MHz supply frequency and a power output of 500W both the inverter parameter vaules are simulated and the results are compared.From the ANSYS Maxwell Elecromagnetic simulation the different parameters of coils are calculated and simulation were performed using PSIM Simulation software and the parameters of inverters were Calculated.From the comparision of PSIM results of both the high-frequency inverters the voltage stress on the switch,current flowing through the switch and input current of EF2 invetrer has better performances than the E inverter.