The design of wireless power transfer system for drone charging based on class-D CLL topology

Low, Kuan Yik (2021) The design of wireless power transfer system for drone charging based on class-D CLL topology. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

In this paper, the concept of a wireless power transfer system has been discussed. Wireless Power Transfer (WPT) system is the communication of power source and electrical load without any medium such as cables. The project aims to design a Wireless Power Transfer system based on class-D CLL topology. The class D converter is used in this project because of the lower losses in power consumption and it can increase the efficiency to 100% theoretically. The design will first convert DC to AC and follow by the resonant circuit. The next objective is to analyse the electromagnetic field distribution of the IPT system in term of coupling distance variations and misalignment. Some calculations have been done and compare to the output results. To achieve the objectives, the idea of the designed such as how the power can be transfer through the system has been discussed. There are many techniques for power transfer such as inductive power transfer, capacitive power transfer, microwave power transfer, etc. The method used in this paper is Inductive Power Transfer (IPT) due to the electromagnetic field and inductive coupling which is not affected by dust. This paper also included several examples of power transfer systems to help everyone have a better understanding of Wireless Power Transfer. All the details are fully included in the paper.

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