Direct Extremum-Seeking Control applied to a quadruple tank system

Rayra Destro; Gabriel Pereira das Neves; Claudio Garcia; Bruno Augusto Angélico

doi:10.20906/sbai.v1i1.2790

Rayra Destro Department of Telecommunications and Control Engineering, Escola Politécnica da USP, São Paulo
Gabriel Pereira das Neves Department of Telecommunications and Control Engineering, Escola Politécnica da USP, São Paulo
Claudio Garcia Department of Telecommunications and Control Engineering, Escola Politécnica da USP, São Paulo
Bruno Augusto Angélico Department of Telecommunications and Control Engineering, Escola Politécnica da USP, São Paulo

DOI: https://doi.org/10.20906/sbai.v1i1.2790

Keywords: Extremum Seeking Control, Model-free control, Quadruple tank, Online optimization

Abstract

This article presents a model-free control technique based on an extremum seeking control algorithm (ESC). The idea is to use ESC as a direct controller to minimize the quadratic error. Considering that it is possible to minimize the error to zero, it is then possible to track a reference. In addition, the technique can guarantee operation for different points of application, as well as for time-varying parameters. This technique was tested, through simulations, in a quadruple tank system.