Author(s)

Chunhua Sun^1,2, Guangqing Shang¹

¹Department of Mechanical and Electrical Engineering, Suzhou Vocational University, Suzhou, China.
²3C-Product Intelligent Manufacturing Engineering Technology Research and Development Center of Suzhou, Suzhou, China.

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.

Piezoelectric Effect, Piezoelectric Energy Harvester, Multi-Directional, MEMS

Sun, C. and Shang, G. (2019) Multi-Direction Piezoelectric Energy Harvesting Techniques. Journal of Power and Energy Engineering, 7, 52-59. doi: 10.4236/jpee.2019.79003.