Wireless Power Transfer For Third Harmonics With the Improved Input Power factor

Power transfer (WPT) without wires in electric vehicle charging is a relevant topic in the present day scenario. From the year of Tesla, the basic method of WPT using magnetic resonance has been developed. The main advantage of WPT is that it does not need any wires and can charge dynamically. So this method is very useful in the case of stationary and dynamic charging of the electric vehicle. WPT can be also used in biomedical types of equipment, electronics appliances charging. This paper proposes a third harmonic WPT system with improved input power factor. The advantage of selecting third harmonics for the power transfer is that it will increase the system frequency up to 3 times without rising the switching frequency. Also, the bigness of the passive components lowered into one by third and thereby the reduction in cost. Reasons for neglecting high order harmonics are also discussed in this paper. The major flaw of ordinary WPT is the poor power factor. So the proposed topology uses a boost PWM rectifier along with hysteresis control, it will increase the input power factor up to 0.9.