PERFORMANCE ANALYSIS OF SINGLE PHASE AND THREE PHASE INDUCTIVE POWER TRANSFER BASED WIRELESS CHARGING

Abstract

Wireless battery charging technology has the potential to enhance the ease and sustainability of electric vehicles (EVs) by eliminating the requirement for physical connection to charge. This study presents a new wireless battery charger specifically built for electric vehicle (EV) applications. The charger obtains electricity from the AC grid to perform power factor correction and enable wireless charging. The charger utilizes a complex procedure to convert alternating current (AC) to direct current (DC), then transforms it back to high-frequency AC for wireless power transfer, and lastly rectifies it back to DC. This ensures the charging process is stable and efficient. An Active Front Rectifier is a key component of its operation. It utilizes the three-phase synchronous reference frame theory to effectively maintain voltage stability. This design enables the charger to operate autonomously without a local controller on the vehicle, seamlessly integrating into current infrastructures and improving convenience. The fundamental principle of wireless charging is the utilization of Inductive Power Transfer (IPT) technology, which efficiently transfers power by means of magnetic connection between the charger and the car. Nevertheless, the system's efficiency can be affected by issues such as misalignment of magnetic couplers, which can lead to swings in output power and mutual inductance. In order to tackle these difficulties, scientists have investigated several configurations that have a higher tolerance for misalignment. This has been achieved by making adjustments to the magnetic couplers, compensation networks, and control methods. Each of these alterations has its own benefits, which rely on criteria like as reliability, efficiency, and cost. The research has made major contributions to the area by demonstrating the potential of wireless charging technology to improve the experience of charging electric vehicles. This technology offers increased adaptability, reliability, and efficiency.