1. Repositório Aberto da Universidade do Porto
2. FEUP - Faculdade de Engenharia
3. FEUP - Dissertação

Author(s):	Miguel Figueiredo Gonçalves Marcos da Silva
Title:	Design and Implementation of a Wireless Power Transfer System for Underwater Vehicles
Issue Date:	2019-07-11
Description:	The present work addresses the optimization of a power transfer system to achieve wireless power link in underwater conditions. Underwater wireless power transfer (WPT) in ocean is critically limited by the energy dissipated in salt water. This conductive medium is responsible for most of the power losses, significantly increasing with the distance between power transmitter (Tx) and receiver (Rx). The system comprises a power transmitter (Tx), coupling coils and a receiver (Rx). A careful design of the coil pair with proper geometry and adequate choice of materials can effectively help in reducing these losses, but only up to some degree. The main goal of this thesis is to optimize the underwater power transmitter (Tx), with special focus on the development of a power inverter, specically designed for energy transfer by means of magnetic resonant coupling, having salt water as the transmission medium. Series capacitors are used both at the primary and secondary sides of the coupled coils, but with the operating frequency defined above resonance. The design makes use of the impedance of load and resonant coupling coils to establish class-DE conditions in a full-bridge inverter.
Subject:	Engenharia electrotécnica, electrónica e informática Electrical engineering, Electronic engineering, Information engineering
Scientific areas:	Ciências da engenharia e tecnologias::Engenharia electrotécnica, electrónica e informática Engineering and technology::Electrical engineering, Electronic engineering, Information engineering
DOI:	10.34626/v55c-8z60
TID identifier:	202395936
URI:	https://hdl.handle.net/10216/122088
Document Type:	Dissertação
Rights:	openAccess
Appears in Collections:	FEUP - Dissertação

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.