Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
OPTIMAL LINEAR CONTROL APPLIED IN A ENERGY HARVESTING DYNAMIC SYSTEM WITH PERIODIC EXCITATION
Submission Author:
Estevão Fuzaro de Almeida , SP
Co-Authors:
Estevão Fuzaro de Almeida, Fabio Roberto Chavarette, Douglas da Costa Ferreira
Presenter: Estevão Fuzaro de Almeida
doi://10.26678/ABCM.COBEM2019.COB2019-0521
Abstract
Generally, active control in dynamic systems is used to reduce vibrations by modifying system behavior to what is desired in design issues. However, the present work of research is precisely the use of vibrations to generate electrical energy, in such a way that the vibration becomes a desired phenomenon. In this way, we intend to use the Optimal Control via Linear Quadratic Regulator (LQR), aiming at the greater transduction of vibrational energy to electric, performing a detailed analysis of the stability of the resulting system and the effects that the control technique provides to the dynamic system studied. In the project, the analyzed system is a bimodal mass-spring-damper governed by a system of linear differential equations, with piezoelectric coupling-mechanic who suffers an external periodic excitation. It is part of the direct continuation of the research project, funded by the São Paulo Research Foundation (FAPESP), Grant No. 2017/03829-7.
Keywords
Dynamic Systems, Quadratic Linear Regulator, Linear Quadratic Ricatti (LQR), LQR Control, Optimal Linear Feedback Control, energy harvesting
