The University of Southampton
University of Southampton Institutional Repository

Increasing output power of electromagnetic vibration energy harvesters using improved Halbach arrays

Increasing output power of electromagnetic vibration energy harvesters using improved Halbach arrays
Increasing output power of electromagnetic vibration energy harvesters using improved Halbach arrays
This paper extends previously published studies into the performance of Halbach arrays for electromagnetic vibration energy harvesting. A Halbach array is a specific arrangement of permanent magnets that concentrates the magnetic field on one side of the array while cancelling the field to almost zero on the other side. This arrangement can improve electromagnetic coupling in a limited space. Previous research showed that although the Halbach array has higher magnetic field density compared to normal magnet layouts, its magnetic flux change rate is not necessarily high. Thus, output powers of energy harvesters with standard Halbach arrays are not always greater than those with normal magnet layouts. Two improvements to the Halbach arrays that lead to increased output power of electromagnetic vibration energy harvesters are presented in this paper. Test results showed that the proposed improved Halbach arrays can increase the output power of energy harvesters by a factor of seven compared to the standard Halbach array.
0924-4247
11-19
Zhu, Dibin
ec52eae1-39fa-427c-968b-e76089a464a6
Beeby, SP
ba565001-2812-4300-89f1-fe5a437ecb0d
Tudor, MJ
46eea408-2246-4aa0-8b44-86169ed601ff
Harris, Nick
237cfdbd-86e4-4025-869c-c85136f14dfd
Zhu, Dibin
ec52eae1-39fa-427c-968b-e76089a464a6
Beeby, SP
ba565001-2812-4300-89f1-fe5a437ecb0d
Tudor, MJ
46eea408-2246-4aa0-8b44-86169ed601ff
Harris, Nick
237cfdbd-86e4-4025-869c-c85136f14dfd

Zhu, Dibin, Beeby, SP, Tudor, MJ and Harris, Nick (2013) Increasing output power of electromagnetic vibration energy harvesters using improved Halbach arrays. Sensors and Actuators A: Physical, 203, 11-19. (doi:10.1016/j.sna.2013.08.008).

Record type: Article

Abstract

This paper extends previously published studies into the performance of Halbach arrays for electromagnetic vibration energy harvesting. A Halbach array is a specific arrangement of permanent magnets that concentrates the magnetic field on one side of the array while cancelling the field to almost zero on the other side. This arrangement can improve electromagnetic coupling in a limited space. Previous research showed that although the Halbach array has higher magnetic field density compared to normal magnet layouts, its magnetic flux change rate is not necessarily high. Thus, output powers of energy harvesters with standard Halbach arrays are not always greater than those with normal magnet layouts. Two improvements to the Halbach arrays that lead to increased output power of electromagnetic vibration energy harvesters are presented in this paper. Test results showed that the proposed improved Halbach arrays can increase the output power of energy harvesters by a factor of seven compared to the standard Halbach array.

Text
Increasing Output Power of Electromagnetic Vibration Energy Harvesters using Improved Halbach Arrays_final.pdf - Other
Download (819kB)

More information

Published date: September 2013
Organisations: EEE

Identifiers

Local EPrints ID: 356767
URI: http://eprints.soton.ac.uk/id/eprint/356767
ISSN: 0924-4247
PURE UUID: 65b46e19-7c01-41d6-bb3f-79d82822a956
ORCID for Dibin Zhu: ORCID iD orcid.org/0000-0003-0517-3974
ORCID for SP Beeby: ORCID iD orcid.org/0000-0002-0800-1759
ORCID for MJ Tudor: ORCID iD orcid.org/0000-0003-1179-9455
ORCID for Nick Harris: ORCID iD orcid.org/0000-0003-4122-2219

Catalogue record

Date deposited: 16 Sep 2013 10:50
Last modified: 15 Mar 2024 02:46

Export record

Altmetrics

Contributors

Author: Dibin Zhu ORCID iD
Author: SP Beeby ORCID iD
Author: MJ Tudor ORCID iD
Author: Nick Harris ORCID iD

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×