Analytical fractional reduced-order model identification method for processes with overdamped and underdamped response
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Fecha
2024
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Elsevier B.V.
Resumen
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.
Palabras clave
Fractional first-order plus dead-time model
Fractional-order systems
Overdamped response
Process identification
Underdamped response
Fractional-order systems
Overdamped response
Process identification
Underdamped response
Descripción
Ponencia presentada en la 12th IFAC Conference on Fractional Differentiation and its Applications ICFDA, celebrada en Burdeos entre el 9 y el 12 de julio de 2024
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Cita
Gude, J. J., Baraldi, F. B., Oleagordia, I., & Bringas, P. G. (2024). Analytical fractional reduced-order model identification method for processes with overdamped and underdamped response. IFAC-PapersOnLine, 58(12), 191-196. https://doi.org/10.1016/J.IFACOL.2024.08.188