Estudio de la acumulación de energía vibracional en dispositivos colocados en sistemas e infraestructuras ferroviarias: análisis y simulación del acumulador piezoeléctrico aplicando una carga general.

Abstract

In recent years, the demand for energy has increased, so the use of renewable energies is an option to supply the demand, while caring for the environment. In the search to take advantage of the environmental energy found in the environment, technology has been developed to be able to capture other energy sources and transform them into electrical energy, such is the case of mechanical energy sources, where vibrational energy is abundant in rail systems. In the present work we seek to take advantage of this vibrational energy produced by the passage of the train, transforming the mechanical energy into electrical energy by means of a piezoelectric collector. This is carried out through an analysis of the parameters that make up the railway - piezoelectric system, for this, the mathematical model of the system is proposed, and the general periodic force that is the source of excitation of the piezoelectric is also deduced, all the Analysis is done with the help of MATLAB software. The result of a first railway configuration - piezoelectric delivers an RMS voltage of 125.85 [V] and 0.014 [mW] of power, later with the analysis of the parameters of the first configuration it is possible to improve the voltage and output power, this improvement is obtained by changing some of the parameters and others by keeping them constant, as a result we obtain a second railway configuration – piezoelectric with RMS voltage of 178.77 [V] and an output power of 0.04 [mW]. The result of the second configuration is close to power values obtained by other authors, with which the results obtained in this work can be validated.