Banca de DEFESA: ALCEMY GABRIEL VITOR SEVERINO

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : ALCEMY GABRIEL VITOR SEVERINO
DATA : 08/12/2017
HORA: 09:00
LOCAL: Auditório do LAUT
TÍTULO:

Meta-heuristics applied to system identification

PALAVRAS-CHAVES:

Meta-heuristics, Nonlinear systems, Systems identification, Selection of structures, NARX model.

PÁGINAS: 71
GRANDE ÁREA: Engenharias
ÁREA: Engenharia Elétrica
SUBÁREA: Eletrônica Industrial, Sistemas e Controles Eletrônicos
ESPECIALIDADE: Controle de Processos Eletrônicos, Retroalimentação
RESUMO:

The systems identification have the goal to determine mathematical models to describe the dynamic characteristics of systems from observations. The identification process is generally divided into the following steps: i) experimental data collection, ii) determination of model structure, iii) parameter estimation and iv) model validation. In this work, the problem of the determination of structures is investigated. An algorithm was developed to determine the structure of polynomial NARX models from the optimization techniques known as meta-heuristics. Unlike traditional methods, metaheuristics use a set of possible solutions and strategies, usually based on nature, to find the solution of the case applied. Among the techniques studied are the genetic algorithm, the particle swarm optimization, and the bat algorithm. The methodology proposed in this work was applied to identify three experimental examples: an electric heater, a buck converter and a pneumatic valve. The results demonstrate that metaheuristics can be applied to the problem of the selection of polynomial NARX model structures.

MEMBROS DA BANCA:
Presidente - 1451883 - FABIO MENEGHETTI UGULINO DE ARAUJO
Interno - 350751 - ADELARDO ADELINO DANTAS DE MEDEIROS
Interno - 1328152 - CARLOS EDUARDO TRABUCO DOREA
Externo à Instituição - LEANDRO LUTTIANE DA SILVA LINHARES - UnP
Externo à Instituição - TAKASHI YONEYAMA - ITA