Electromechanical Modeling and Simulation of Piezoelectric Energy Harvester using MATLAB SIMULINK

Abstract

Ambient vibration based energy harvesting using piezoelectric harvester has been of great interest for
researchers for low power wireless or self sufficient applications. As energy harvested in this case not only depends on
vibration input level but greatly depends on properties, dimensions and characteristics of piezoelectric material used for
harvester also. In this paper an electromechanical model developed using MATLAB Simulink is presented and validated
with experimental result of PVDF and PZT piezoelectric material harvesters. It is also compared with equivalent
electrical model used in some past research works. It has been found that electromechanical model gives results quiet
proximate to experimental results as well theoretical values. The electromechanical model proved very useful tool for
study and analysis of behaviour of different kinds of piezoelectric material for energy harvesting.