Equivalent circuit representation of a vortex-induced vibration-based energy harvester using a semi-empirical lumped parameter approach

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dc.contributor.author Wang, J en
dc.contributor.author Tang, Lihua en
dc.contributor.author Zhao, L en
dc.contributor.author Hu, Guobiao en
dc.contributor.author Song, R en
dc.contributor.author Xu, K en
dc.date.accessioned 2020-05-10T20:29:11Z en
dc.date.issued 2020-05 en
dc.identifier.issn 0363-907X en
dc.identifier.uri http://hdl.handle.net/2292/50575 en
dc.description.abstract Small‐scale wind energy harvesting from vortex‐induced vibrations (VIV) has been introduced in recent years as a renewable power source for microelectronics and wireless sensors. Previous studies have focused on modeling and optimizing the VIV‐based piezoelectric energy harvester (VIVPEH) structures and simplified the complicated interface circuits as pure resistors with an alternating current (AC) output. In practice, an AC output is required to be transformed into a direct current (DC) followed by further regulations before being used for real applications. Incorporating the rectification and regulation, traditional theoretical and numerical models will become extremely cumbersome and even impossible. To address this issue, this work proposes an equivalent circuit model (ECM) for a typical VIVPEH. The Scanlan‐Ehsan aerodynamic force model is employed to describe the fluid‐structure interaction. Wind tunnel experiments are carried out to validate the derived model. The performances of the VIVPEH with AC and DC interface circuits are subsequently analyzed and compared to understand the influences of these circuits on the operational wind speed bandwidth, power output, vibration amplitude, and electrical damping. en
dc.description.uri https://catalogue.library.auckland.ac.nz/permalink/f/t37c0t/uoa_alma21156571320002091 en
dc.publisher Wiley en
dc.relation.ispartofseries International Journal of Energy Research en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. en
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm en
dc.title Equivalent circuit representation of a vortex-induced vibration-based energy harvester using a semi-empirical lumped parameter approach en
dc.type Journal Article en
dc.identifier.doi 10.1002/er.5228 en
pubs.issue 6 en
pubs.begin-page 4516 en
pubs.volume 44 en
dc.rights.holder Copyright: The author en
pubs.author-url https://onlinelibrary.wiley.com/doi/abs/10.1002/er.5228 en
pubs.end-page 4528 en
dc.rights.accessrights http://purl.org/eprint/accessRights/RestrictedAccess en
pubs.subtype Article en
pubs.elements-id 793974 en
pubs.org-id Engineering en
pubs.org-id Mechanical Engineering en
dc.identifier.eissn 1099-114X en
pubs.record-created-at-source-date 2020-02-13 en
pubs.online-publication-date 2020-02-10 en

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