Abstract

The need for Electric vehicle is increasing and the world is shifting to answer a of automation. With the increasing production of electric vehicles, the need for EV charging is also increasing. A lot of work is being put into easing the process of EV powering with a concentration on increased efficiency. The Electric vehicle Wireless Power transfer technique is one method which offers more flexibility and tolerance in comparison to the traditional plug in charging method. Wireless power transfer technology in contrast to conventional charging is fully automated, has higher power capability and capacity, safer as there is no human contact and most importantly has faster response and saves time. The coupling coil in the charger is the most important in a wireless magnetic resonance-based charging system. The power transferred from transformer to coil is a medium to high power conversion and transmission. While designing a charger of this type the losses have to be taken into account to improve efficiency of power transmission of the charging coupler. This paper presents a high power efficient wireless power charging method for EV based on WPT. Various types of charging coils are compared, analyzed and a conclusion describing the fastest and most efficient charging method is given.

Key words: Vehicular communications, Electrical Vehicles, Wireless Charging, Fuel Efficient