Non Integer Identification of Rotor Skin Effect in Induction Machines

Abdelhamid Jalloul (National Engineering School)
Khaled Jelassi (National Engineering School)
Jean-Claude Trigeassou (Université Bordeaux)

International Journal of Electrical and Computer Engineering
Vol 3, No 3: June 2013

Fractional identification of rotor skin effect in induction machines is presented in this paper. Park‘s transformation is used to obtain a system of differential equations which allows to include the skin effect in the rotor bars of asynchronous machines. A transfer function with a fractional derivative order has been selected to represent the admittance of the bar by the help of a non integer integrator which is approximated by a J+1 dimensional modal system. The machine parameters are estimated by an output-error technique using a non linear iterative optimization algorithm. Experimental results show the performance of the modal approach for modeling and identification.DOI:http://dx.doi.org/10.11591/ijece.v3i3.2286