Switched sampled-data control of Takagi-Sugeno Fuzzy systems

• Grant number: 23/05700-2
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: September 01, 2023
• Status: Discontinued
• Field of knowledge: Engineering - Electrical Engineering - Industrial Electronics, Electronic Systems and Controls
• Principal Investigator: Rodrigo Cardim
• Grantee: Dante Javier Solis Oncoy
• Host Institution: Faculdade de Engenharia (FEIS). Universidade Estadual Paulista (UNESP). Campus de Ilha Solteira. Ilha Solteira , SP, Brazil
• Associated scholarship(s): 24/21859-4 - Stabilization of Sampled-Data Control Systems using an Augmented Lyapunov Functional Based on Bessel-Legendre Inequality, BE.EP.DR

Abstract

This project addresses a growing area in control research in recent years, the control ofnonlinear systems including state feedback with sampled data with a non uniform sam-pling. Due to the advantages presented in the literature, the nonlinear systems will bemodelled in a local sector by a Takagi-Sugeno (T-S) fuzzy system. This approach willprovide an analysis of the system stability using the Lyapunov's direct method, and thusobtain design conditions in the form of linear matrix inequalities (LMIs). The sampled-data control system will be addressed using an approach based on Lyapunov functionals,more specifically, based on time-dependent functionals and those known as looped func-tionals. On the other hand, recent results in the literature have illustrated that theswitched controller applied in T-S fuzzy systems can generate less conservative designconditions, especially if it is applied to systems with uncertain parameters. Therefore,the main contribution of this work will be to obtain less conservative design conditionsfor switched controllers that guarantee some performance conditions using a Lyapunovfunctional dependent on the membership functions. Moreover, it will be studied the con-text of uncertainties in the membership functions making its feedback impossible. Finally,the theoretical results will be validated in bench tests, for example, in a Quanser activesuspension system which is present in the LPC (Laboratório de Pesquisa em Controle -Control Research Laboratory) - FEIS - UNESP-Campus de Ilha Solteira. (AU)

Scientific publications

(4)

(The scientific publications listed on this page originate from the Web of Science or SciELO databases. Their authors have cited FAPESP grant or fellowship project numbers awarded to Principal Investigators or Fellowship Recipients, whether or not they are among the authors. This information is collected automatically and retrieved directly from those bibliometric databases.)

FARIA, FLAVIO A.; ELIAS, LEANDRO J.; CARDIM, RODRIGO; ONCOY, DANTE J. S.; OLIVEIRA, VILMA A.. Robust H_∞ switched control for uncertain linear systems via chattering free static output feedback*. 2024 IEEE 63RD CONFERENCE ON DECISION AND CONTROL, CDC, v. N/A, p. 8-pg., 2024-01-01. (23/05700-2, 14/50851-0)

FARIA, FLAVIO A.; PRADO, VIRGILIO V.; YAMANAKA, HUGO F.; ONCOY, DANTE J. S.; CARDIM, RODRIGO; ASSUNCAO, EDVALDO; TEIXEIRA, MARCELO C. M.; ALVES, UILIAM N. L. T.. State feedback design for uncertain linear systems with D-stability constraints. IFAC PAPERSONLINE, v. 59, n. 16, p. 5-pg., 2025-01-01. (23/05700-2, 24/20978-0, 24/10089-3)

ONCOY, DANTE J. S.; CARDIM, RODRIGO; TEIXEIRA, MARCELO C. M.; FARIA, FLAVIO A.; ASSUNCAO, EDVALDO. Sampled-Data Output Feedback Control for an Active Suspension System Under Transmission Delay and Time-Varying Loads. IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, v. 61, n. 5, p. 14-pg., 2025-09-01. (23/05700-2)

ONCOY, DANTE JAVIER SOLIS; CARDIM, RODRIGO; FARIA, FLAVIO ANDRADE; ALVES, UILIAM NELSON LENDZION TOMAZ; TEIXEIRA, MARCELO CARVALHO MINHOTO. Robust Switched Non-parallel Distributed Controller for Continuous Takagi-Sugeno Fuzzy Systems Based on Generalized Lyapunov Function. INTERNATIONAL JOURNAL OF FUZZY SYSTEMS, v. N/A, p. 17-pg., 2025-06-04. (23/05700-2)