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arXiv · 0711.3309

Optimization of Piezoelectric Electrical Generators Powered by Random Vibrations

E. Lefeuvre·A. Badel·C. Richard·L. Petit·D. Guyomar
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Abstract

This paper compares the performances of a vibrationpowered electrical generators using PZT piezoelectric ceramic associated to two different power conditioning circuits. A new approach of the piezoelectric power conversion based on a nonlinear voltage processing is presented and implemented with a particular power conditioning circuit topology. Theoretical predictions and experimental results show that the nonlinear processing technique may increase the power harvested by a factor up to 4 compared to the Standard optimization technique. Properties of this new technique are analyzed in particular in the case of broadband, random vibrations, and compared to those of the Standard interface.

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E. Lefeuvre, A. Badel, C. Richard, L. Petit, D. Guyomar. 2007-11-21. Optimization of Piezoelectric Electrical Generators Powered by Random Vibrations. https://arxiv.org/abs/0711.3309

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