OPTIMIZATION OF PIEZOELECTRIC ELECTRICAL GENERATORS POWERED BY RANDOM VIBRATIONS

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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  • HAL Id : hal-00189305, version 1
  • ARXIV : 0711.3309

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E. Lefeuvre, A. Badel, C. Richard, L. Petit, D. Guyomar. OPTIMIZATION OF PIEZOELECTRIC ELECTRICAL GENERATORS POWERED BY RANDOM VIBRATIONS. DTIP 2006, Apr 2006, Stresa, Lago Maggiore, Italy. 6 p. ⟨hal-00189305⟩

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