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pvfopid

View Padula-Visioli tuning algorithm for a FOPID controller on File Exchange

alt text

Padula-Visioli tuning algorithm for a FOPID controller in CLS system with a first order plus dead time plant (FOPDT)

Algorithm was proposed in:

[1] F. Padula and A. Visioli, "Tuning rules for optimal PID and fractional-order PID controllers," J. Process Control, vol. 21, no. 1, pp. 69–81, Jan. 2011.

Requirements:

  • FOTF toolbox

Parameters:

  • K - FOPDT gain
  • T - FOPDT time constant
  • L - FOPDT dead time

Output:

  • SP14 - 5-element vector of coefficients [K_P, K_I, K_D, \mu, \nu, N] for the Set point task, M_1=1.4
  • SP20 - coefficients for the Set point task, M_2=2.0
  • LD14 - coefficients for the Load disturbance rejection task, M_1=1.4
  • LD20 - coefficients for the Load disturbance rejection task, M_2=2.0
  • GconSP14 - fractional-order transfer function (FOTF) of the FOPID controller based on SP14 coefficients
  • GconSP20 - FOTF of the FOPID based on SP20 coefficients
  • GconLD14 - FOTF of the FOPID based on LD14 coefficients
  • GconLD20 - FOTF of the FOPID based on LD20 coefficients

Implemented by:

Mariusz Matusiak mmatusiak@iis.p.lodz.pl

Lodz University of Technology, Poland