Banca de QUALIFICAÇÃO: EVERTON JOSÉ DE CASTRO REGO

Uma banca de QUALIFICAÇÃO de DOUTORADO foi cadastrada pelo programa.
STUDENT : EVERTON JOSÉ DE CASTRO REGO
DATE: 02/10/2020
TIME: 14:30
LOCAL: Sala virtual do Google Meet https://meet.google.com/yam-gekb-ewc?hs=122&authuser=0
TITLE:

Self-Tuning for Decentralized Controller Embedded in a PLC

KEY WORDS:

Multivariable systems, Decentralized control, Decoupler, Industrial automation, Gershgorin's theorem.

PAGES: 55
BIG AREA: Engenharias
AREA: Engenharia Elétrica
SUBÁREA: Eletrônica Industrial, Sistemas e Controles Eletrônicos
SPECIALTY: Controle de Processos Eletrônicos, Retroalimentação
SUMMARY:

Among the possible controller designs for multivariable systems, the decentralized control approach is the most used by control operators. This occurs because the number of required controllers will be equal to the number of inputs and outputs feedback from system. Which leads to fewer controllers needed compared to the centralized control that has a controller for each element of the multivariable process. There is also another approach that a decoupling structure is connected between the process and the decentralized control, in order to minimize the interactions between the system loops. Given this and motivated by industrial demand for automatic controllers, this study aims to develop autotuning methods for multivariable control systems and program them into Programmable Logic Controller (PLC). The functionalities proposed to the PLC are two functional blocks: the first works as a decoupler able to adjust by user demand and; the second is a decentralized controller capable of autotuning the PI controller parameters in order to ensure robustness criteria. The functional blocks estimate the multivariable process model by experiments with the decentralized relay used to evaluate the system's critical points. In order to illustrate the functioning of the methods that will be tried on real plants, when implemented in PLC, numerical simulations were carried out to evaluate the functioning of the autotuning methods.

BANKING MEMBERS:
Presidente - 1328152 - CARLOS EDUARDO TRABUCO DOREA
Interno - 350693 - ANDRÉ LAURINDO MAITELLI
Externo à Instituição - THIAGO ANTONIO MELO EUZÉBIO