Design optimization and experimental analysis of Piezoelectric Energy harvester

Abstract

This paper describes an approach to harvest electrical energy from a mechanically excited piezoelectric element. The structure of piezoelectric energy harvester is optimized for maximum power with minimum dimensions through Genetic Algorithm approach to enhance the conversion of mechanical energy into electrical energy using direct piezoelectric effect. Numerical analysis is carried out to obtain optimal PZT position on the cantilever beam to get maximum harvested power. A rectifier with boost converter IC is used for converting harvested power in to usable DC power. The simulation results are verified experimentally