2025-02-032025-02-032024-10-21GOMES. Marcus Ciro Martins. Projeto de controle robusto de ordem fracionária para sistemas com incerteza paramétrica. Orientador: Carlos Tavares da Costa Júnior; Coorientador: Florindo Antonio de Carvalho Ayres Júnior. 2024. 78 f. Tese (Doutorado em Engenharia Elétrica) - Instituto de Tecnologia, , Universidade Federal do Pará, Belém, 2024. Disponível em: https://repositorio.ufpa.br/jspui/handle/2011/16812. Acesso em:.https://repositorio.ufpa.br/jspui/handle/2011/16812This research introduces a novel methodology that integrates fractional-order control theory with robust control techniques to address parametric uncertainty, aimed at enhancing the performance of linear time-invariant uncertain systems with integer or fractional orders, referred to as Fractional-Order Robust Control (FORC). Unlike traditional methods, this proposed approach offers a new formulation of inequalitiesbased design, broadening the scope for discovering improved solutions through linear programming optimization. Consequently, fractional-order controllers are tailored to ensure desired transient and steady-state performance in closed-loop systems. In order to facilitate the digital implementation of the designed controller, the impulse response invariant discretization of fractional-order differentiators (IRID-FOD) is used to approximate fractional-order controllers to integer-order transfer functions. Additionally, the Hankel reduction order method is applied, making the controllers suitable for hardware deployment. Experimental tests conducted on a thermal system, along with assessment results based on time-domain responses and robustness analysis supported by performance indices and set value analysis, demonstrate the enhanced and robust performance of the proposed FORC methodology compared to classical robust control under parametric uncertainty.Acesso AbertoAttribution-NonCommercial-NoDerivs 3.0 Brazilhttp://creativecommons.org/licenses/by-nc-nd/3.0/br/Controle de ordem fracionáriaControle robustoIncertezas paramétricasRobustezFractional order controlRobust controlParametric UncertaintyRobustnessTeseCNPQ::ENGENHARIAS::ENGENHARIA ELETRICA::SISTEMAS ELETRICOS DE POTENCIACONTROLE E AUTOMAÇÃOSISTEMAS DE ENERGIA ELÉTRICA