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Optimal Design of a Vibration-Based Electromagnetic Energy Harvester Using a Simulated Annealing Algorithm

Published online by Cambridge University Press:  16 October 2012

M.-C. Chiu ,
Y.-C. Chang ,
L.-J. Yeh  and
C.-H. Chung
M.-C. Chiu*
Affiliation:
Department of Mechanical and Automation Engineering, Chung Chou University of Science and Technology, Changhua, Taiwan 51003, R.O.C.
Y.-C. Chang
Affiliation:
Department of Mechanical Engineering, Tatung University, Taipei, Taiwan 10452, R.O.C.
L.-J. Yeh
Affiliation:
Department of Mechanical Engineering, Tatung University, Taipei, Taiwan 10452, R.O.C.
C.-H. Chung
Affiliation:
Department of Mechanical Engineering, Tatung University, Taipei, Taiwan 10452, R.O.C.
*
* Corresponding author (minchie.chiu@msa.hinet.net)
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Abstract

This paper presents the optimal design of an electromagnetic vibration-based generator using the simulated annealing method (SA). To optimally extract the vibrational energy of a system vibrating at a specific frequency, the selected mass and spring stiffness of a resonant vibration is required. The relationship between induced energy and the generator's structure, its permanent magnet height and diameter, number of turns, and wire diameter in a single air coil are discussed. Also, a prototype of the vibrationbased electrical generator is built and tested via a shaker excited at resonance frequency and input amplitude of 0.06mm. Consequently, results reveal that the design parameters (permanent magnet height and diameter, number of turns, and wire diameter) play essential roles in maximizing electrical power.

Keywords

Electromechanical generatorPermanent magnet machineOptimization
Type
Articles
Information
Journal of Mechanics , Volume 28 , Issue 4 , December 2012 , pp. 691 - 700
Copyright
Copyright © The Society of Theoretical and Applied Mechanics, R.O.C. 2012

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