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Nonlinear Dynamics

, Volume 68, Issue 1–2, pp 107–115 | Cite as

Fractional order inductive phenomena based on the skin effect

  • J. A. Tenreiro MachadoEmail author
  • Alexandra M. S. F. Galhano
Original Paper

Abstract

The 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.

Keywords

Skin effect Electromagnetism Inductance Fractional calculus Genetic algorithms 

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Copyright information

© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  • J. A. Tenreiro Machado
    • 1
    Email author
  • Alexandra M. S. F. Galhano
    • 1
  1. 1.Dept. Electrical EngineeringInstitute of Engineering of the Polytechnic of PortoPortoPortugal

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