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A Rapid Modeling and Prototyping Technique for Piezoelectric Energy Harvesting Systems

Authors:
Aldo Romani
Rudi Paolo Paganelli
Enrico Sangiorgi
Marco Tartagni

Keywords: piezoelectric devices, energy harvesting, model identification, equivalent electromechanical circuit

Abstract:
This paper describes a reliable modeling technique for piezoelectric transducers and a procedure for identifying model parameters with few simple measurements and standard laboratory equipment. Direct measurements were taken on commercial Q220-A4-303YB piezoelectric transducers from Piezo Systems in a cantilever configuration with tip masses between 6 g and 18 g. For validation purposes, the behavior of the equivalent electromechanical circuits was simulated and compared to direct observations in real operating conditions. The model showed to predict with a high degree of accuracy both the response of the transducers to vibrations and a set of second order effects associated to the presence of a non-linear power converter and usually ignored by conventional models presented in literature.

Pages: 86 to 90

Copyright: Copyright (c) IARIA, 2011

Publication date: August 21, 2011

Published in: conference

ISSN: 2308-3514

ISBN: 978-1-61208-145-8

Location: Nice/Saint Laurent du Var, France

Dates: from August 21, 2011 to August 27, 2011