Electrical Model of a Piezoelectric System for Generating Energy through the Force Applied in a Step

Piezoelectric systems have become important in exploring new methods of energy generation. When force is applied to a piezoelectric transducer, it undergoes mechanical deformation and generates a certain amount of energy. This energy can be used to transform the force exerted by a person's footsteps into electrical energy. Improving the efficiency of the mechanical-electrical conversion of piezoelectric materials could reduce our dependence on traditional energy sources. However, the lack of a specific model limits its practical application in energy storage. Although theoretical models exist, they are rarely validated against practical models. This document aims to simulate the operation of the PZT-51 piezoelectric transducer using its electrical model and considering its mechanical characteristics in energy storage applications. To validate the Simulink®-generated model, parameters such as dielectric permittivity, piezoelectric coefficient and loss factor were used, as provided by the manufacturer. This ensures that the results obtained are close to reality.