Decentralized Fuzzy Control for Minimum and Non-minimum Phase of a Coupled Four-Tank System

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In this paper, a coupled four-tank MIMO process is controlled for its minimum and non-minimum phase based on the fuzzy control method. The model of this system has a multivariable zero, which can be moved along the real axis to set its system phase by adjusting two hydraulic valves. The location of the poles and zeros of a system directly influences its stability and control effort. The proposed control for this process is based on a three-block decentralized fuzzy logic control, where each one is specialized in an operating mode defined by the system phase. Therefore, this proposal is more computationally efficient than a single high-dimensional fuzzy controller. The design of the proposed fuzzy rules and membership functions are based on prior knowledge of the system. Simulation results show the performance for the three decentralized fuzzy controllers, so a useful control response that considers settling time, error band, and overshoot requirements, is achieved in both minimum and non-minimum phases of the system.

Idioma originalInglés
Título de la publicación alojadaProceedings of the 7th Brazilian Technology Symposium, BTSym 2021 - Emerging Trends in Systems Engineering Mathematics and Physical Sciences
EditoresYuzo Iano, Osamu Saotome, Guillermo Leopoldo Kemper Vásquez, Claudia Cotrim Pezzuto, Rangel Arthur, Gabriel Gomes de Oliveira
EditorialSpringer Science and Business Media Deutschland GmbH
Número de páginas11
ISBN (versión impresa)9783031085444
EstadoPublicada - 2022
Evento7th Brazilian Technology Symposium, BTSym 2021 - Virtual, Online
Duración: 8 nov. 202110 nov. 2021

Serie de la publicación

NombreSmart Innovation, Systems and Technologies
Volumen295 SIST
ISSN (versión impresa)2190-3018
ISSN (versión digital)2190-3026


Conferencia7th Brazilian Technology Symposium, BTSym 2021
CiudadVirtual, Online


Profundice en los temas de investigación de 'Decentralized Fuzzy Control for Minimum and Non-minimum Phase of a Coupled Four-Tank System'. En conjunto forman una huella única.

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