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Nonlinear control system for optical interferometry based on fuzzy Takagi-Sugeno and LMI's

Grant number: 17/17235-1
Support type:Scholarships in Brazil - Doctorate (Direct)
Effective date (Start): December 01, 2017
Effective date (End): July 31, 2019
Field of knowledge:Engineering - Electrical Engineering - Electrical, Magnetic and Electronic Measurements, Instrumentation
Principal researcher:Claudio Kitano
Grantee:Luiz Henrique Vitti Felão
Home Institution: Faculdade de Engenharia (FEIS). Universidade Estadual Paulista (UNESP). Campus de Ilha Solteira. Ilha Solteira , SP, Brazil


This study aims to develop a novel nonlinear control system to optical interferometer based on fuzzy TS methodology, in order to ensure its performance, and guarantee the operation around the optimum point. It is noteworthy that the design of nonlinear control systems stills an open problem. The goal is to assembly a closed loop interferometer capable to operate in harsh environments with high accuracy. Additionally, the Linear Matrix Inequalities (LMI) approach will be used to optimize the system behavior, ensuring the designed performance indices. Also, the closed loop interferometer will be used to characterize cylinder piezoelectric actuators, determining its frequency response, highlighting resonance frequency, linearity and hysteresis. (AU)

Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
FELAO, V, LUIZ H.; MARTIN, I, ROBERTA; SAKAMOTO, JOAO M. S.; TEIXEIRA, MARCELO C. M.; KITANO, CLAUDIO. Wide dynamic range quadrature interferometer with high-gain approach and sliding mode control. Optics Express, v. 27, n. 18, p. 25031-25045, SEP 2 2019. Web of Science Citations: 0.
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
FELÃO, Luiz Henrique Vitti. High gain approach and sliding mode control applied to quadrature interferometer. 2019. Doctoral Thesis - Universidade Estadual Paulista "Júlio de Mesquita Filho" Faculdade de Engenharia (Campus de Ilha Solteira)..

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