The Design Of An Efficient Class E-LCCL Capacitive Power Transfer System Through Frequency Tuning Method

• Main Authors: Md Saat, Mohd Shakir, Hasan, Khairul Kamarudin, Yusop, Yusmarnita, Husin, Siti Huzaimah, Md Sin, Nor Diyana
• Format: Article
• Language: English
• Published: Institute of Advanced Engineering and Science 2021
• Online Access: http://eprints.utem.edu.my/id/eprint/25630/2/PAPER%20IJECE%20KHAIRUL.PDF; http://eprints.utem.edu.my/id/eprint/25630/; http://ijece.iaescore.com/index.php/IJECE/article/view/22032/14635

In this work, the optimum zero voltage switching (ZVS) of Class E-LCCL capacitive power transfer (CPT) was determined via frequency tuning method. Through this an efficient system can be guanranteed although there is a change in the capacitive plates distance. This study used a Class-E LCCL inverter, as it can operate at a high alternate current frequency, besides producing low switching losses and minimal power losses. Specifically, this study conducted simulations and experiments to analyse the performance of an LCCL CPT System at 1 MHz operating frequency and 24 V DC supply voltage. Using an air gap distance of 0.1 cm, the designed CPT system prototype successfully achieved an output power of 10W and an efficiency of 95.45%. This study also found that by tuning the resonant frequency of the Class E-LCCL system, the optimum ZVS can be obtained although capacitive plate distance was varied from 1-3 cm via experimental. The results of this study could benefit medical implant and portable device development, consumer electronics, and environments that involve electrical hazards.