Wireless EV Charging System (WEVCS) | How Does It Works?

Wireless EV Charging System (WEVCS) is a technology that enables electric vehicles (EVs) to be charged without cables or cords. It uses an electromagnetic field to transfer electrical energy between two magnetic coils: the charging pad on the ground and the other in the vehicle’s battery.

The components of Wireless Electric Vehicle Charging systems include a receiver coil in the vehicle and a charging pad. The receiver coil is attached to the vehicle’s underside, while the charging pad can be installed on a wall or ground. These two components work together to create a magnetic field that transfers energy from the charging pad to the battery of the parked vehicle.

Due to its ability to lower the risk of electrical shock and eliminate the need for manual charging cable connection, WEVCS offers the advantages of simplicity, safety, and better energy economy. 

How Wireless EV Charging System Work?

The foundational idea behind Wireless EV Charging System is creating a magnetic field surrounding a conductor when an alternating current (AC) passes through it. This magnetic field transfer energy to another conductor without direct physical contact between the two conductors. In Wireless Electric Vehicle Charging System (WEVCS), two coils—one on the vehicle and the other on the charging station—transfer electricity.

The coil on the vehicle causes an electric current due to the charging station’s alternating magnetic field. The battery is then charged using this current. The automatic charging procedure starts when a car is parked over a charging pad.

The efficiency of Wireless EV Charging System (WEVCS) depends on several factors, including the distance between the coils, the size of the waves, and the amount of power being transferred. The closer the locks are, the more efficient the energy transfer and the faster the battery is charged.