Design and Simulation of Wireless Power Transfer for Electric Vehicle

Wireless Power Transfer Techniques are gaining popularity in Electric Vehicle charging applications due to its safety and convenience. Wireless Electric Vehicle charging system can be a potential alternative technology to charge EVs without any plug-in problems. The fundamental challenge for implementing Wireless Power Transfer for Vehicle application is the coupling variation between the primary and secondary coils due to misalignment and air-gap between coils. Compensation circuits are necessary for the Wireless Inductive Power Transfer system, to have maximum power transfer from the primary coil to secondary coils. This paper describes the design and simulation of the Inductive Wireless Power Transfer System using PLECS software. FEM simulation is carried out to verify the effect of coupling variation between primary charging pads and secondary coil mounted on the vehicle due to air gap distance between them.