TITLE:
Multi-Direction Piezoelectric Energy Harvesting Techniques
AUTHORS:
Chunhua Sun, Guangqing Shang
KEYWORDS:
Piezoelectric Effect, Piezoelectric Energy Harvester, Multi-Directional, MEMS
JOURNAL NAME:
Journal of Power and Energy Engineering,
Vol.7 No.9,
September
18,
2019
ABSTRACT: With the development of portable and self-powering electronic devices, micro-electromechanical system (MEMS) and wireless sensor networks, research on piezoelectric energy harvesting techniques has been paid more and more attention. To enhance the ambient adaptability and improve the generating efficiency, the multi-directional piezoelectric energy harvesting techniques turns to be a research hotspot. The current status of the multi-directional piezoelectric energy harvesting techniques was firstly reviewed. The characteristics of existed multi-directional piezoelectric harvester were then analyzed. An improved structure of multi-directional piezoelectric harvester was finally proposed. The multi-directional piezoelectric energy harvester has a good prospect in miniaturization, more sensitive to vibration directions and better energy efficiency.