Bifurcations and chaos in electrostatic vibration energy harvesters

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Title: Bifurcations and chaos in electrostatic vibration energy harvesters
Authors: Blokhina, Elena
Galayko, Dimitri
Wade, Rhona
Basset, Philippe
Feely, Orla
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Date: May-2012
Abstract: In this paper, we present an analysis of an electrostatic vibration harvester operating in the constant-charge mode. The goal of the study is to bound regions of control parameters where the system displays steady-state harmonic oscillations as required for practical use. We show how the system can be presented as a nonlinear oscillator and analysed employing the multiple scales method, Floquet theory and Lyapunov exponents. We determine the conditions for the onset of steady-state oscillations, the period doubling bifurcation and transition to chaos. This allows us to bound regions of control parameters where the system displays desired regular oscillations and, therefore, to identify maximal harvestable power for a particular architecture.
Funding Details: Science Foundation Ireland
Type of material: Conference Publication
Publisher: IEEE
Copyright (published version): 2012 IEEE
Keywords: Vibration energy harvestersBifurcationsSteady-state oscillations
Subject LCSH: Energy harvesting
Bifurcation theory
Chaotic behavior in systems
DOI: 10.1109/ISCAS.2012.6272046
Language: en
Status of Item: Not peer reviewed
Is part of: Circuits and Systems (ISCAS), 2012 IEEE International Symposium on [proceedings]
Conference Details: Paper presented at the IEEE International Symposium on Circuits and Systems 2012 (ISCAS 2012), Seoul, Korea, 20-23 May 2012
Appears in Collections:Electrical and Electronic Engineering Research Collection

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