Piezoelectric energy harvesting from colored fat-tailed fluctuations: An electronic analogy

TL;DR

This paper investigates piezoelectric energy harvesting from fat-tailed fluctuations using an electronic analog, demonstrating how noise statistics influence power output and providing experimental validation of the theoretical model.

Contribution

It introduces an electronic analog experiment to study energy harvesting from colored fat-tailed noise, linking noise characteristics with device performance.

Findings

Output power increases with fat-tailed noise parameter q

Electronic analog effectively models the theoretical system

Experimental results support theoretical predictions

Abstract

Aiming to optimize piezoelectric energy harvesting from strongly colored fat-tailed fluctuations, we have recently studied the performance of a monostable inertial device under a noise whose statistics depends on a parameter $q$ (bounded for $q<1$, Gaussian for $q=1$, fat-tailed for $q>1$). We have studied the interplay between the potential shape (interpolating between square-well and harmonic-like behaviors) and the noise's statistics and spectrum, and showed that its output power grows as $q$ increases above 1. We now report a real experiment on an electronic analog of the proposed system, which sheds light on its operating principle.