Modeling for Piezoelectric Stacks in Series and Parallel

Author

Chunhua Sun ; Guangqing Shang ; Xuechao Zhu ; Yiyi Tao ; Zhirong Li

Author_Institution

Dept. of Mech. & Electr. Eng., Suzhou Vocational Univ., Suzhou, China

fYear

2013

fDate

16-18 Jan. 2013

Firstpage

954

Lastpage

957

Abstract

Piezoelectric energy harvesting is a new type technology of green energy. To increase energy harvesting efficiency from below frequencies, which exist mostly in ambient, the piezoelectric stack assembled electrically in series and parallel is used as the energy harvester. Based on the third piezoelectric equations and equivalent circuit, the output voltage and power equations of piezoelectric stacks in series and parallel in d33 mode are derived. Higher voltage can be obtained from serial piezoelectric stack while higher power can be generated from parallel one. The results are verified by the experiment conducted on PZT-8. It is shown that the theoretical and measured values fit very well.

Keywords

energy harvesting; environmental factors; equivalent circuits; piezoelectric transducers; PZT-8; d33 mode; energy harvesting efficiency; equivalent circuit; green energy; output voltage; parallel piezoelectric stack; piezoelectric energy harvesting; piezoelectric equation; power equation; serial piezoelectric stack; Energy harvesting; Equations; Force; Mathematical model; Power generation; Resistors; Voltage measurement; electric serial and parallel connection; energy harvesting; piezoelectric harvester; piezoelectric stack;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent System Design and Engineering Applications (ISDEA), 2013 Third International Conference on

Conference_Location

Hong Kong

Print_ISBN

978-1-4673-4893-5

Type

conf

DOI

10.1109/ISDEA.2012.228

Filename

6456198