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Title: Performance enhancement of an out-of-plane electret-based vibrational energy harvester with dual charged plates
Authors: Tao, Kai
Lye, Sun Woh
Miao, Jian Min
Hu, Xiao
Keywords: Energy Harvesting
Vibrations (Mechanical)
DRNTU::Engineering::Mechanical engineering
Issue Date: 2014
Source: Tao, K., Lye, S. W., Miao, J. M., & Hu, X. (2014). Performance enhancement of an out-of-plane electret-based vibrational energy harvester with dual charged plates. Journal of Physics: Conference Series, 557(1), 012064-. doi:10.1088/1742-6596/557/1/012064
Series/Report no.: Journal of Physics: Conference Series
Abstract: This paper presents a novel out-of-plane electret-based vibrational power generator (EVPG) that has both negative and positive charged electret plates integrated into a single seismic mass system. Compared with the conventional single-charged two-plate configuration, the proposed device not only exhibits an enhanced output voltage magnitude but also has a wide operational bandwidth due to spring softening nonlinearity according to the experimental analysis. With the acceleration changes from 0.1g to 0.5g, the operating 3-dB bandwidth can be increased 2.6 times from 2.5 Hz to 6.5 Hz, which indicates higher energy conversion efficiency than a linear energy harvester in the practical scenario of broadband random vibrations.
ISSN: 1742-6588
DOI: 10.1088/1742-6596/557/1/012064
Rights: © 2014 The Author(s). Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Published under licence by IOP Publishing Ltd.
Fulltext Permission: open
Fulltext Availability: With Fulltext
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