Title :
A Magnetoelectric Generator for Energy Harvesting From the Vibration of Magnetic Levitation
Author :
Yang Zhu ; Zu, J.W. ; Guo, Lisheng
Author_Institution :
Mech. & Ind. Eng. Dept., Univ. of Toronto, Toronto, ON, Canada
Abstract :
Vibration-based energy harvester has been widely studied during the past years. In order to improve the power-generating ability and enlarge the frequency range of energy harvesters, this paper presents the design and analysis of a new magnetoelectric energy harvester that uses Terfenol-D/PZT/Terfenol-D laminate to harvest energy from nonlinear vibrations created by magnetic levitation. The mathematical model of the proposed harvester is derived and used in a parametric study. Time-domain numerical results of the system´s mechanical and electrical responses are obtained and discussed. It is shown that, due to the high energy density and strong magneto-mechanical coupling effect of magnetostrictive material, the proposed harvester is capable of generating very high voltage and power at low frequency ranges.
Keywords :
energy harvesting; laminates; lead compounds; magnetic levitation; magnetic materials; magnetoelectric effects; organic compounds; time-domain analysis; vibrations; PZT; Terfenol-D-PZT-Terfenol-D laminate; electrical responses; energy harvesting; high energy density; magnetic levitation vibration; magneto-mechanical coupling effect; magnetoelectric energy harvester; magnetoelectric generator; magnetostrictive material; mathematical model; mechanical responses; nonlinear vibrations; power-generating ability; time-domain numerical results; vibration-based energy harvester; Laminates; Magnetic levitation; Magnetic separation; Magnetoelectric effects; Magnetostriction; Vibrations; Magnetic levitation; magnetoelectric laminate composite; vibration-based energy harvesting;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2012.2199289
