Capacitive Energy Conversion with Circuits Implementing a Rectangular Charge-Voltage Cycle Part 2: Electromechanical and Nonlinear Analysis

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Title: Capacitive Energy Conversion with Circuits Implementing a Rectangular Charge-Voltage Cycle Part 2: Electromechanical and Nonlinear Analysis
Authors: O'Riordan, EoghanDudka, AndreyGalayko, DimitriBasset, PhilippeFeely, OrlaBlokhina, Elena
Permanent link: http://hdl.handle.net/10197/9105
Date: Nov-2015
Online since: 2017-12-13T18:14:51Z
Abstract: In this paper, we explore and describe the electromechanical coupling which results in eKEH conditioning circuits implementing a rectangular QV cycle, including but not limited to the charge pump and Bennet’s doubler circuits. We present numerical and semi analytical analyses describing the nonlinear relationship between the oscillating mass and the conditioning circuit. We believe this is a poorly understood facet of the device and, as we will portray, effects the potential harvested energy. An approach to determine the frequency shift due to the electromechanical coupling is presented and compared with novel experimental results. We provide some examples of bifurcation behaviour and show that the only source of nonlinearity is in the coupling between the electrical and mechanical domains. This work continues from the electrical analysis presented in Part 1, providing a full insight into the complex behaviour of the electromechanical coupling.
Funding Details: Science Foundation Ireland
Type of material: Journal Article
Publisher: IEEE
Journal: IEEE Transactions on Circuits and Systems I: Regular Papers (
Volume: 62
Issue: 11
Start page: 2664
End page: 2673
Copyright (published version): 2015 IEEE
Keywords: Electrostatic kinetic energy harvestersElectromagnetic couplingSteady-state oscillationsMultiple scale methodsBifurcation analysis
DOI: 10.1109/TCSI.2015.2451913
Language: en
Status of Item: Peer reviewed
This item is made available under a Creative Commons License: https://creativecommons.org/licenses/by-nc-nd/3.0/ie/
Appears in Collections:Electrical and Electronic Engineering Research Collection

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