Optimization of a piezoelectric energy harvester for environmental broadband vibrations

Author

Paci, Dario ; Schipani, Monica ; Bottarel, Valeria ; Miatton, Daniele

Author_Institution

STMicroelectronics, Milan

fYear

2008

fDate

Aug. 31 2008-Sept. 3 2008

Firstpage

177

Lastpage

181

Abstract

Energy scavenging systems (ESS) can be important, theoretically endless, sources of energy. In the future, they could recharge or even replace batteries. In this paper a design methodology is presented in order to maximize the harvested energy and the transduction efficiency of a cantilever-like piezoelectric scavenger. The role of geometrical parameters is investigated through a theoretical analysis based on an equivalent lumped-parameter circuit, while their optimum value is chosen by means of FEM simulations.

Keywords

cantilevers; energy harvesting; equivalent circuits; finite element analysis; lumped parameter networks; piezoelectric devices; vibrations; FEM simulations; cantilever-like piezoelectric scavenger; energy scavenging systems; environmental broadband vibrations; equivalent lumped-parameter circuit; finite element method; optimization; piezoelectric energy harvester; transduction efficiency; Accelerometers; Batteries; Circuit simulation; Design methodology; Electronic switching systems; Frequency; Piezoelectric transducers; Resonance; Vibration measurement; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Circuits and Systems, 2008. ICECS 2008. 15th IEEE International Conference on

Conference_Location

St. Julien´s

Print_ISBN

978-1-4244-2181-7

Electronic_ISBN

978-1-4244-2182-4

Type

conf

DOI

10.1109/ICECS.2008.4674820

Filename

4674820