Broadband Energy Harvesting using Multi-Cantilever based Piezoelectric

Authors

  • Yu Jing Bong Faculty of Electronic and Computer Engineering Universiti Teknikal Malaysia Melaka Hang Tuah Jaya, 76100 Durian Tunggal, Melaka, Malaysia
  • Kok Swee Leong Faculty of Electronic and Computer Engineering Universiti Teknikal Malaysia Melaka Hang Tuah Jaya, 76100 Durian Tunggal, Melaka, Malaysia

Keywords:

Bandwidth widening, Energy scavenger, Resonant cantilever, Micro-generator,

Abstract

Wideband energy harvesting is essential particularly for extracting electrical energy from ambient vibration which is random. Researches show that the frequency bandwidth of the harvested energy can be effectively enhanced by using multiple cantilevers with different resonant frequencies connecting together. This paper investigates the effect of the different electrical configurations towards the output of the piezoelectric array. An array of four similar piezoelectric cantilevers was mounted side-by-side to operate as a system in generating electrical output across frequencies range up to 500 Hz. The resonant frequency of each of the cantilever was varied by introducing a proof mass of 0.15g, 0.50g and 1.00g at the tip of the cantilever. The result shows improvement in the frequency bandwidth of the piezoelectric array, where it is widened to 150 Hz with improved gap when connected in alternating polarities configurations. The piezoelectric array produces higher voltage when connecting in series configuration; but higher power when connecting in parallel configuration.

Author Biography

Yu Jing Bong, Faculty of Electronic and Computer Engineering Universiti Teknikal Malaysia Melaka Hang Tuah Jaya, 76100 Durian Tunggal, Melaka, Malaysia

Faculty of Electronic and Computer Engineering (FKEKK) 

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Published

2017-09-29

How to Cite

Bong, Y. J., & Swee Leong, K. (2017). Broadband Energy Harvesting using Multi-Cantilever based Piezoelectric. Journal of Telecommunication, Electronic and Computer Engineering (JTEC), 9(3), 111–116. Retrieved from https://jtec.utem.edu.my/jtec/article/view/2173

Issue

Vol. 9 No. 3: July - September 2017

Section

Articles

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