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Coil and core design for inductive energy receivers

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Title: Coil and core design for inductive energy receivers
Authors: Kiziroglou, ME
Wright, SW
Yeatman, EM
Item Type: Journal Article
Abstract: The design of coil/core transducers is important for maximizing the power density of inductive energy receivers for both inductive energy harvesting and power transfer. In this work, we present a study of core and coil performance, based on a simulated flux distribution corresponding to aircraft applications. The use of funnel-shaped soft magnetic cores boosts magnetic flux density by flux concentration and allows the use of a smaller diameter coil. This reduces the transducer mass as well as the coil resistance (RCOIL), thereby increasing the available power density. Analysis and simulation shows a fifty-fold power density increase from moderate funneling and another two-fold increase by coil size optimization. Results are compared with experimental measurements which demonstrate a 31 μW/g power density from alternating environmental magnetic fields in the 10 μT/360 Hz range.
Issue Date: 1-Oct-2020
Date of Acceptance: 11-Jul-2020
URI: http://hdl.handle.net/10044/1/80635
DOI: 10.1016/j.sna.2020.112206
ISSN: 0924-4247
Publisher: Elsevier BV
Start Page: 1
End Page: 9
Journal / Book Title: Sensors and Actuators A: Physical
Volume: 313
Copyright Statement: © 2020 Elsevier Ltd. All rights reserved. This article is published under a Creative Commons license https://creativecommons.org/licenses/by/4.0/.
Sponsor/Funder: Clean Sky Joint Undertaking
Funder's Grant Number: 785495
Keywords: Nanoscience & Nanotechnology
0906 Electrical and Electronic Engineering
0912 Materials Engineering
0913 Mechanical Engineering
Publication Status: Published
Article Number: 112206
Online Publication Date: 2020-07-13
Appears in Collections:Electrical and Electronic Engineering
Faculty of Natural Sciences
Faculty of Engineering

This item is licensed under a Creative Commons License Creative Commons