Banca de DEFESA: MARCIO EMANUEL UGULINO DE ARAUJO JUNIOR

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
DISCENTE : MARCIO EMANUEL UGULINO DE ARAUJO JUNIOR
DATA : 13/04/2018
HORA: 09:30
LOCAL: Auditório do LAUT
TÍTULO:

MPC Predictive Control of Electropneumatic Position Valves with Grip

PALAVRAS-CHAVES:

Valve Stiction, Nonlinear Predictive Control, Constraints, Compensation.

PÁGINAS: 77
GRANDE ÁREA: Engenharias
ÁREA: Engenharia Elétrica
SUBÁREA: Eletrônica Industrial, Sistemas e Controles Eletrônicos
ESPECIALIDADE: Automação Eletrônica de Processos Elétricos e Industriais
RESUMO:

This work presents the implementation of a system that deals with static friction (stiction)
in electropneumatic control valves, one of the most common nonlinearities that causes
problems such as limit cycles and consequently wear of the valve and its moving
parts, as well as losses in production and maintenance costs. This system is composed
of a non-linear predictive controller with adjustable constraints and an online database
for estimation of the stiction parameters. The predictive controller uses constraints on
the valve speed during its excursion, as well as constraints on the control signal to bring
the valve to the desired position and slip it when necessary. The strategy adopted also
showed robustness, being able to cope with changes in the spring and stiction parameters,
which caused mismatch between the valve model and the present controller model, the
that should cause loss of performance or even instability.

MEMBROS DA BANCA:
Presidente - 350693 - ANDRÉ LAURINDO MAITELLI
Interno - 1451883 - FABIO MENEGHETTI UGULINO DE ARAUJO
Externo ao Programa - 2453033 - ANDERSON LUIZ DE OLIVEIRA CAVALCANTI
Externo à Instituição - ADEMAR GONÇALVES DA COSTA JÚNIOR - IFPB
Externo à Instituição - JOSE BEZERRA DE MENEZES FILHO - IFPB