Low Frequency Vibration-Based Mems Piezoelectric Energy Harvester

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dc.contributor.authorSaadon, Salem Abdullah Amer
dc.date.accessioned2017-11-07T07:04:14Z
dc.date.available2017-11-07T07:04:14Z
dc.date.issued2014-07
dc.description.abstractProviding a green, virtually infinite alternative power source to traditional energy sources will significantly expand applications for WSNs and other technologies. The use of piezoelectric materials to capitalize on the ambient vibrations surrounding a system is one method that has seen a dramatic rise in the use for power harvesting. Most of the works found in literature are different in their structures and vibration frequencies, and only few of them have focused on power harvesting under both low frequency and acceleration applications. In order to meet the requirements of power optimization, three analytical models of different structural cantilevers (T-shaped, E-shaped, and arrayed harvester) were developed, verified, and simulated through the methodology of this research according to the flowchart developed. Finally, a proposed design of a 5-element cantilever-based array MEMS piezoelectric energy harvester for low frequency is being analytically modeled and simulated by COVENTORWARE approach. Throughout this study, an ambient vibration-based MEMS piezoelectric energy harvester has been modeled and designed for low frequency applications, the harvested power and voltage were 1.8 μWatts and 190 mV respectively for a single cantilever element at excitation frequency of 70.2 Hz, while the designed 5-element cantilever based energy harvester extracted up to 6.8 μWatts and 0.4 volts at excitation frequency band of 67 to 70 Hz under acceleration amplitude of 1.3g, yielding power density of 2.3 μWatts/mm3 of a harvester volume 3 mm3en_US
dc.identifier.urihttp://hdl.handle.net/123456789/5244
dc.language.isoenen_US
dc.publisherUniversiti Sains Malaysiaen_US
dc.subjectLow frequency vibrationen_US
dc.subjectenergy harvesteren_US
dc.titleLow Frequency Vibration-Based Mems Piezoelectric Energy Harvesteren_US
dc.typeThesisen_US
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Pusat Pengajian Kejuruteraaan Elektrik dan Elektronik - Tesis