Vibration energy harvesting by magnetostrictive material

被引:436
作者
Wang, Lei [1 ]
Yuan, F. G. [1 ]
机构
[1] N Carolina State Univ, Dept Mech & Aerosp Engn, Raleigh, NC 27695 USA
关键词
D O I
10.1088/0964-1726/17/4/045009
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
A new class of vibration energy harvester based on magnetostrictive material (MsM), Metglas 2605SC, is designed, developed and tested. It contains two submodules: an MsM harvesting device and an energy harvesting circuit. Compared to piezoelectric materials, the Metglas 2605SC offers advantages including higher energy conversion efficiency, longer life cycles, lack of depolarization and higher flexibility to survive in strong ambient vibrations. To enhance the energy conversion efficiency and alleviate the need of a bias magnetic field, Metglas ribbons are transversely annealed by a strong magnetic field along their width direction. To analyze the MsM harvesting device a generalized electromechanical circuit model is derived from Hamilton's principle in conjunction with the normal mode superposition method based on Euler-Bernoulli beam theory. The MsM harvesting device is equivalent to an electromechanical gyrator in series with an inductor. In addition, the proposed model can be readily extended to a more practical case of a cantilever beam element with a tip mass. The energy harvesting circuit, which interfaces with a wireless sensor and accumulates the harvested energy into an ultracapacitor, is designed on a printed circuit board (PCB) with plane dimension 25 mm x 35 mm. It mainly consists of a voltage quadrupler, a 3 F ultracapacitor and a smart regulator. The output DC voltage from the PCB can be adjusted within 2.0-5.5 V. In experiments, the maximum output power and power density on the resistor can reach 200 mu W and 900 mu W cm(-3), respectively, at a low frequency of 58 Hz. For a working prototype under a vibration with resonance frequency of 1.1 kHz and peak acceleration of 8.06 m s(-2) (0.82 g), the average power and power density during charging the ultracapacitor can achieve 576 mu W and 606 mu W cm(-3), respectively, which compete favorably with piezoelectric vibration energy harvesters.
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页数:14
相关论文
共 28 条
[1]   Low frequency wireless powering of microsystems using piezoelectric-magnetostrictive laminate composites [J].
Bayrashev, A ;
Robbins, WP ;
Ziaie, B .
SENSORS AND ACTUATORS A-PHYSICAL, 2004, 114 (2-3) :244-249
[2]   Energy harvesting vibration sources for microsystems applications [J].
Beeby, S. P. ;
Tudor, M. J. ;
White, N. M. .
MEASUREMENT SCIENCE AND TECHNOLOGY, 2006, 17 (12) :R175-R195
[3]  
BHAT BR, 1976, J SOUND VIB, V45, P304, DOI 10.1016/0022-460X(76)90606-4
[4]  
Blevins R.D., 1995, FORMULAS NATURAL FRE
[5]  
Du Tr?molet de Lacheisserie E., 1993, MAGNETOSTRICTION THE
[6]   Design considerations for MEMS-scale piezoelectric mechanical vibration energy harvesters [J].
duToit, NE ;
Wardle, BL ;
Kim, SG .
INTEGRATED FERROELECTRICS, 2005, 71 :121-160
[7]   A self-powered mechanical strain energy sensor [J].
Elvin, NG ;
Elvin, AA ;
Spector, M .
SMART MATERIALS & STRUCTURES, 2001, 10 (02) :293-299
[8]  
Engdahl G., 2000, Handbook of Giant Magnetostrictive Materials
[9]   Self-powered systems: A review of energy sources [J].
Dept. of Electron. and Comp. Science, University of Southampton, Southampton SO17 1BJ, United Kingdom .
Sensor Review, 2001, 21 (02) :91-97
[10]  
Howatson A. M., 1996, ELECT CIRCUITS SYSTE