Development of 6.78 MHz capacitive wireless power transfer coupler for charging system

Azlan, Aisyatul Amira (2022) Development of 6.78 MHz capacitive wireless power transfer coupler for charging system. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Capacitive Power Transfer (CPT) appears as an alternative to proliferating InductiveWireless Power Transfer technology (IPT). It transfers power using high-frequency electric fields, which has three major benefits: little eddy-current loss, cheap cost and lightweight, and good misalignment performance. Because of its effectiveness and ease, wireless power transfer is becoming more popular nowadays. It's been used in consumer devices like cell phone charging and powering electric vehicles. In this study, we present a four plate arrangement with two shielding plate with operating frequency of 6.78 MHz. Besides, the objective of this project is to analyse coupler structure for 6.78 MHz capacitive wireless power transfer (CWPT) using LT Spice simulation circuit for charging system, to fabricate coupler structure for 6.78 MHz capacitive wireless power transfer using metal plate and to evaluate the performance of the fabricated coupler structure by using an experimental setup. Capacitive interfaces are useful for wireless charging stations because of their simplicity and inexpensive cost. Therefore, in this study, effort was paid to design capacitive wireless power transfer for charging systems. LT Spice software was used to create the model. After all components have been validated, they are integrated into a single subsystem and tested.

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