Experimental Study on a Piezoelectric Energy Generator with Support Device Excited by Rotating Magnets

Abstract:

Introduce a piezoelectric energy generator (PEG) with support device excited by the magnetic coupling force between rotating magnets fixed on a rotator and nickel plate fixed on a piezo-beam. The influence of magnetic force (number of the magnets), rotating speed and the work condition of the piezo-beam (with support device or free condition) on energy generation of the PEG was investigated experimentally. The research results show that there are several optimal rotating speeds for the PEG to achieve peak voltage at speed range of 0 to 1200r/min. Under the distance of rotating magnets and the piezo-beam is given, the peak voltages rise with the increasing of rotating magnets number and rotating speed.The maximum peek voltages from the PEG with 2/3/4 rotating magnets fixed on the rotator are 14.4/18.6/20.2V respectively and optimal rotating speeds are 660/456/348r/min. The support device makes optimal rotating speeds move backward, exerts great influence on the rising phases of the peak voltages, prevents piezo-beam from deforming excessively and improve the reliability of PEG.

• Periodical: Advanced Materials Research (Volumes 915-916)
• Pages: 372-376
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.915-916.372
• Online since: April 2014
• Authors: Jia Wei Fu, Shu Yun Wang, Jun Wu Kan*, Fang Sheng Huang, Bing Han, Kai Feng Mao, Chun Tao Fan
• Keywords: Energy Harvesting, Piezoelectric, Rotating Excitation, Support Device

References

[1] Salem Saadon, Othman Sidek. Energy Conversion and Management, 2011, 52: 500-504.

[2] Adnan Harb. Energy harvesting: State-of-the-art. Renewable Energy, 2011, 36: 2641-2654.

DOI: 10.1016/j.renene.2010.06.014

[3] Lei Gua, Carol Livermore. Applied Physics Letters, 2010, 97(8): 081904(3pp).

[4] S PRIYA, C-T CHEN, D FYE, et al. Japanese Journal of Applied Physics. 2005, 44(3): L104–L107.

[5] Marian Keck. Proc. of IEEE Sensors, 2007, p: 1299-1302.

[6] Cam Minh Tri Tien, Nam Seo Goo. Proc. of SPIE, 2010, 7643: 371-379.

[7] P. Janphuang, D. Isarakorn, D. Briand, N.F. de Rooij. 2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, 2011, p: 735-738.

DOI: 10.1109/transducers.2011.5969852

[8] B. Cavallier, P. Berthelot, H. Nouira, et al. IEEE Ultrasonics Symposium, 2005, 2: 943-945.

[9] Kan Junwu, Tang Kehong, Wang Shuyun, et al. Optics and Precision Engineering, 2008, 16(1): 71-75.

[10] Tang Lihua, Yang Yaowen. Appl. Phys. Lett., Vol. 101(2012), p.094102.

[11] Kan Junwu, Wang Shuyun, Peng Shaofeng, Zhang Zhonghua, Zeng Ping, Cheng Guangming, Fu Xiaoqing. Optics and Precision Engineering, 2011, 19(9): 2108-2116.