A magnetoelectric generator for energy harvesting from the vibration of magnetic levitation

作者：Zhu Yang^*; Zu Jean W

来源：IEEE Transactions on Magnetics, 2012, 48(11): 3344-3347.

DOI：10.1109/TMAG.2012.2199289

• Design and analysis
• Electrical response
• Energy Harvester
• Frequency ranges
• High energy densities
• High voltage
• Low frequency range
• Magnetoelectric laminate composites
• Magnetomechanical couplings
• Magnetostrictive material
• Non-linear vibrations
• Numerical results
• Parametric study
• Terfenol-D
• Time domain
• Vibration-based energy harvesting

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.

• 出版日期2012