Bidirectional Wireless Power Transfer System for Electric Vehicles- Overview and Implementation

The automobile industry in India is on the verge of shifting from the conventional petrol or diesel engines to electric vehicles. The conventional fuel used for the automobile is limited and has several problems such as hazards to the environment due to the combustion of fuel. The electric vehicle overcomes the problems associated with fuel combustion and provides an effective solution for transportation. The flexibility with electric vehicles has opened the doors of opportunities for the researchers to develop sustainable solutions in the automobile sector. The problems associated with EV are the battery charging time and the performance of the battery. The bidirectional transfer of power enables the grid connection of electric vehicles. As the power transfer is in both directions charging and discharging of the batteries is possible with the fulfillment of controlled output requirements. The wireless transfer of power is introduced long back but is not implemented at a large scale as the efficiency of the system is not so high. The implemented module for bidirectional wireless power transfer is presented in this paper.

I. Introduction

The sustainable development of any country considers the efforts for improving the environmental conditions and avoiding the hazards to the environment. The even-odd formula for the vehicles was implemented in Delhi for last three years. The pollution created by vehicles is one of the major reasons for environmental hazards. The increase in the use of vehicles may increase pollution. There were around 4 lakh electric vehicles running on roads in India in 2019. This number is very small as compared to the total number of vehicles in India but with the government policies the number will be encouraging in around the year 2025.