Show simple item record

dc.contributor.authorFernandes, Egon
dc.date.accessioned2017-08-31 19:19:56 (GMT)
dc.date.available2017-08-31 19:19:56 (GMT)
dc.date.issued2017-08-31
dc.date.submitted2017-08-30
dc.identifier.urihttp://hdl.handle.net/10012/12313
dc.description.abstractThe growing demand for electricity has put enormous pressure on the current power grid infrastructure and has caused several major blackouts over the past few decades. As a result, there has been a shift towards a modernized “Smart Grid” which uses sensors and wireless communications technology to detect and quickly react to local changes in power usage. Recent advancements in low-power electronics have created opportunities for wireless sensor nodes which typically use batteries as their power supply and only have a lifespan of a few years. The cost to replace the vast amount of batteries can be immense. This paper details a power solution for Smart Grid applications to replace batteries by harvesting energy from current-carrying wires. A MEMS piezoelectromagnetic energy harvester has been fabricated through screen-printing of PZT on a stainless steel substrate with a centrally-supported meandering geometry. The energy harvesting device was modelled using COMSOL and validated against experimental results. The design goals of a suitable footprint for microelectronic applications and a resonant frequency of 60 Hz were also achieved. The proposed geometry reduced the presence of torsion in the fundamental mode and increased the efficiency of the harvester. The harvester was able to produce 9 μW from a wire carrying 7 Amps at a distance of approximately 6.5 mm. This work resulted in a greater normalized power density than other MEMS based piezoelectromagnetic devices and shows great potential relative to larger devices using bulk piezoelectrics.en
dc.language.isoenen
dc.publisherUniversity of Waterlooen
dc.subjectEnergy harvestingen
dc.subjectLow frequencyen
dc.subjectMEMSen
dc.subjectPiezoelectricen
dc.subjectElectromagneticen
dc.subjectSmart griden
dc.subjectMeanderingen
dc.subjectScreen-printingen
dc.titleDesign, Modelling, and Fabrication of a Low Frequency Piezoelectromagnetic Energy Harvesteren
dc.typeMaster Thesisen
dc.pendingfalse
uws-etd.degree.departmentMechanical and Mechatronics Engineeringen
uws-etd.degree.disciplineMechanical Engineeringen
uws-etd.degree.grantorUniversity of Waterlooen
uws-etd.degreeMaster of Applied Scienceen
uws.contributor.advisorSalehian, Armaghan
uws.contributor.advisorWei, Lan
uws.contributor.affiliation1Faculty of Engineeringen
uws.published.cityWaterlooen
uws.published.countryCanadaen
uws.published.provinceOntarioen
uws.typeOfResourceTexten
uws.peerReviewStatusUnrevieweden
uws.scholarLevelGraduateen


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record


UWSpace

University of Waterloo Library
200 University Avenue West
Waterloo, Ontario, Canada N2L 3G1
519 888 4883

All items in UWSpace are protected by copyright, with all rights reserved.

DSpace software

Service outages