Steady-State Oscillations in Resonant Electrostatic Vibration Energy Harvesters

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Title: Steady-State Oscillations in Resonant Electrostatic Vibration Energy Harvesters
Authors: Blokhina, Elena
Galayko, Dimitri
Basset, Philippe
Feely, Orla
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Date: Apr-2013
Online since: 2012-10-15T16:33:41Z
Abstract: In this paper, we present a formal analysis and description of the steady-state behavior of an electrostatic vibration energy harvester operating in constant-charge mode and using different types of electromechanical transducers. The method predicts parameter values required to start oscillations, allows a study of the dynamics of the transient process, and provides a rigorous description of the system, necessary for further investigation of the related nonlinear phenomena and for the optimisation of converted power. We show how the system can be presented as a nonlinear oscillator and be analysed by the multiple scales method, a type of perturbation technique. We analyse two the most common cases of the transducer geometry and find the amplitude and the phase of steady-state oscillations as functions of parameters. The analytical predictions are shown to be in good agreement with the results obtained by behavioural modeling.
Funding Details: Science Foundation Ireland
Type of material: Journal Article
Publisher: IEEE
Journal: IEEE Transactions on Circuits and Systems I
Volume: 60
Issue: 4
Start page: 875
End page: 884
Copyright (published version): 2013 IEEE
Keywords: Vibration energy harvestingNonlinear oscillations
Subject LCSH: Bifurcation theory
Nonlinear oscillations
Energy harvesting
DOI: 10.1109/TCSI.2012.2209295
Language: en
Status of Item: Peer reviewed
Appears in Collections:Electrical and Electronic Engineering Research Collection

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