A Comparative Study of Identification Techniques for Fractional Models

JALLOUL Abdelhamid, Khaled JELASSI, Jean-Claude TRIGEASSOU

Abstract


A comparative study of methods for fractional system identification is presented in this paper. The fractional system is modeled by the help of a non integer integrator which is approximated by a J+1 dimensional modal system composed of an integrator and first order systems. This identification method is compared to other techniques available in the Matlab toolbox. The model parameters are estimated by an output-error technique using a non linear iterative optimization algorithm. Numerical simulations show the performance of the modal approach for modeling and identification.

DOI:http://dx.doi.org/10.11591/ijece.v3i2.2130


Keywords


Fractional systems Fractional integrator Non integer identification Output error identification

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International Journal of Electrical and Computer Engineering (IJECE)
p-ISSN 2088-8708, e-ISSN 2722-2578

This journal is published by the Institute of Advanced Engineering and Science (IAES) in collaboration with Intelektual Pustaka Media Utama (IPMU).