Multi-frequency electromagnetic energy harvester using a magnetic spring cantilever

Abstract In this study, an array of four generators is designed and fabricated to demonstrate the possibility of harvesting energy from different environmental frequencies. The magnetic spring technique is used as a cantilever to scavenge energy from low frequency vibrations. Initially, a single frequency energy harvester is optimized in terms of the number of turns, coil width, and coil position. Finally, two configurations of a multi-generator are fabricated. In model A, four individual generators are placed side by side; whereas in model B, the generators are placed one above the other. The experimental results show that both models can operate in the 7–10 Hz frequency range. The power densities of model A and model B are 21.92 μW/cm 3 and 52.02 μW/cm 3 , respectively, at an acceleration of 0.5  g .

[1]  Andreas Vogl,et al.  Fabrication and characterization of a wideband MEMS energy harvester utilizing nonlinear springs , 2010 .

[2]  Yiannos Manoli,et al.  Numerical optimization approach for resonant electromagnetic vibration transducer designed for random vibration , 2008 .

[3]  Saibal Roy,et al.  A micro electromagnetic generator for vibration energy harvesting , 2007 .

[4]  Jan M. Rabaey,et al.  A study of low level vibrations as a power source for wireless sensor nodes , 2003, Comput. Commun..

[5]  Tao Dong,et al.  Modeling and experimental verification of low-frequency MEMS energy harvesting from ambient vibrations , 2011 .

[6]  E Romero,et al.  Energy scavenging sources for biomedical sensors , 2009, Physiological measurement.

[7]  Chengkuo Lee,et al.  Piezoelectric MEMS Energy Harvester for Low-Frequency Vibrations With Wideband Operation Range and Steadily Increased Output Power , 2011, Journal of Microelectromechanical Systems.

[8]  Ehab F. El-Saadany,et al.  A wideband vibration-based energy harvester , 2008 .

[9]  Joan Ramon Morante,et al.  Vibrational energy scavenging with Si technology electromagnetic inertial microgenerators , 2007 .

[10]  Jun-Bo Yoon,et al.  Liquid-based electrostatic energy harvester with high sensitivity to human physical motion , 2011 .

[11]  Shadrach Roundy,et al.  On the Effectiveness of Vibration-based Energy Harvesting , 2005 .

[12]  Tuna Balkan,et al.  An electromagnetic micro power generator for wideband environmental vibrations , 2008 .

[13]  Yang Zhang,et al.  Toward self-tuning adaptive vibration-based microgenerators , 2005, SPIE Micro + Nano Materials, Devices, and Applications.

[14]  Ping Li,et al.  Magnetoelectric Energy Harvesting from Vibrations of Multiple Frequencies , 2011 .

[15]  Chengkuo Lee,et al.  Theoretical comparison of the energy harvesting capability among various electrostatic mechanisms from structure aspect , 2009 .

[16]  Dinesh K. Sood,et al.  Design and analyses of electromagnetic microgenerator , 2009 .

[17]  Joseph A. Paradiso,et al.  Energy Scavenging with Shoe-Mounted Piezoelectrics , 2001, IEEE Micro.

[18]  Chaikool Patamaporn,et al.  一つの横方向ディザー走査型トンネル顕微鏡(STM)チップおよび規則的結晶格子を用いる二次元原子エンコーダー , 2009 .

[19]  Othman Sidek,et al.  A review of vibration-based MEMS piezoelectric energy harvesters , 2011 .

[20]  Othman Sidek,et al.  Design and simulation of SOI-MEMS electrostatic vibration energy harvester for micro power generation , 2011, International Conference on Electrical, Control and Computer Engineering 2011 (InECCE).

[21]  Huan Xue,et al.  Broadband piezoelectric energy harvesting devices using multiple bimorphs with different operating frequencies , 2008, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control.

[22]  Chengkuo Lee,et al.  Non-resonant electromagnetic wideband energy harvesting mechanism for low frequency vibrations , 2010 .

[23]  F. Peano,et al.  Design and optimization of a MEMS electret-based capacitive energy scavenger , 2005, Journal of Microelectromechanical Systems.

[24]  Yaowen Yang,et al.  Toward Broadband Vibration-based Energy Harvesting , 2010 .

[25]  K. Najafi,et al.  An electromagnetic micro power generator for low-frequency environmental vibrations , 2004, 17th IEEE International Conference on Micro Electro Mechanical Systems. Maastricht MEMS 2004 Technical Digest.

[26]  Adrien Badel,et al.  A comparison between several vibration-powered piezoelectric generators for standalone systems , 2006 .

[27]  Srinivas Tadigadapa,et al.  Piezoelectric MEMS sensors: state-of-the-art and perspectives , 2009 .

[28]  Chengkuo Lee,et al.  Electromagnetic energy harvesting from vibrations of multiple frequencies , 2009 .