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On the performance and resonant frequency of electromagnetic induction energy harvesters

Mann, B.P. and Sims, N.D. (2010) On the performance and resonant frequency of electromagnetic induction energy harvesters. Journal of Sound and Vibration, 329 (9). pp. 1348-1361. ISSN 0022-460X

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This paper investigates the linear response of an archetypal energy harvester that uses electromagnetic induction to convert ambient vibration into electrical energy. In contrast with most prior works, the in uence of the circuit inductance is not assumed negligible. Instead, we highlight parameter regimes where the inductance can alter resonance and derive an expression for the resonant frequency. The governing equations consider the case of a vibratory generator directly powering a resistive load. These equations are non-dimensionalized and analytical solutions are obtained for the system's response to single harmonic, periodic, and stochastic environmental excitations. The presented analytical solutions are then used to study the power delivered to an electrical load.

Item Type: Article
Copyright, Publisher and Additional Information: Copyright © 2009 Elsevier Ltd. This is an author produced version of a paper published in 'Journal of Sound and Vibration'. Uploaded in accordance with the publisher's self-archiving policy.
Keywords: Energy harvesting, electromagnetic induction, energy scavenging
Institution: The University of Sheffield
Academic Units: The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Mechanical Engineering (Sheffield)
Depositing User: Dr Neil D Sims
Date Deposited: 01 Mar 2010 15:02
Last Modified: 08 Feb 2013 16:59
Published Version: http://dx.doi.org/10.1016/j.jsv.2009.11.008
Status: Published
Publisher: Elsevier
Refereed: Yes
Identification Number: 10.1016/j.jsv.2009.11.008
URI: http://eprints.whiterose.ac.uk/id/eprint/10116

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