Examinando por Autor "Baraldi, Flavia B."

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    Ítem
    Analytical fractional reduced-order model identification method for processes with overdamped and underdamped response
    (Elsevier B.V., 2024) Gude, Juan José; Baraldi, Flavia B.; Oleagordia Ruiz, Ibon; García Bringas, Pablo
    In this paper, an analytical procedure to identify a fractional-first order plus dead time (FFOPDT) model is presented. This procedure is applied to processes with overdamped or underdamped step response, i.e., fractional order values in the range 0.5 ≤ α ≤ 2.0 can be estimated. The required process information is obtained through a simple open-loop step experiment and is based on fitting three arbitrary points (x1-x2-x3%) on the process reaction curve. Some numerical examples are proposed to show the effectiveness and applicability of this procedure for the identification of fractional-order models. The main feature of this approach is that it estimates the FFOPDT model of overdamped and underdamped processes.