Machado, J. A. TenreiroGalhano, Alexandra2014-03-052014-03-0520120924-090X1573-269Xhttp://hdl.handle.net/10400.22/4100The Maxwell equations play a fundamental role in the electromagnetic theory and lead to models useful in physics and engineering. This formalism involves integer-order differential calculus, but the electromagnetic diffusion points towards the adoption of a fractional calculus approach. This study addresses the skin effect and develops a new method for implementing fractional-order inductive elements. Two genetic algorithms are adopted, one for the system numerical evaluation and another for the parameter identification, both with good results.engSkin effectElectromagnetismInductanceFractional calculusGenetic algorithmsjournal article10.1007/s11071-011-0207-z