Electrical Response Analysis of a Piezoelectric Energy Harvester Power Source Based on Electromechanical Parameters
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Author/sPerez-Alfaro, Irene; Gil-Hernandez, Daniel; Hernando, Eduardo; Quero, Fernando; Bernal, Carlos
Environmental energy available
Maximum power transmission
A piezoelectric energy harvester generator is a device capable of transforming environmental mechanical energy into electrical energy. The piezoelectric electromechanical parameters determine the maximum electrical power which is able to be transferred to an electric load. In this research work, an exhaustive study of the electromechanical parameters related to the piezoelectric material is carried out, modeling them as components of an electrical circuit, in order to analyze their influence on the transmitted power. On the other hand, some electrical loads are simulated to determine different matrix scenarios for a model developed by state-space equations in the Laplace transform domain. The results obtained have allowed to know how the piezoelectric material properties and mechanical characteristics influence the electrical power output of the energy harvester generator and the energy transmission behavior for different electric loads. The conclusions show how the different electrome ...