Autors: Raicevic, N.B., Aleksic, S.R., Iatcheva, I. I., Barukcic, M.
Title: Enhanced method for pulse skin effect calculation of cylindrical conductors
Keywords: Integral equations, Differential evolution, Skin effect, Differential evolution optimization method, Fast Fourier transform, Current pulse

Abstract: Purpose: This paper aims to present a new approach to the numerical solution of skin effect integral equations in cylindrical conductors. An approximate, but very simple and accurate method for calculating the current density distribution, skin-effect resistance and inductance, in pulse regime of cylindrical conductor, having a circular or rectangular cross-section, is considered. The differential evolution method is applied for minimization of error functional. Because of its application in the practice, the lightning impulse is observed. Direct and inverse fast Fourier transform is applied. Design/methodology/approach: This method contributes to increasing of correctness and much faster convergence. As the electromagnetic field components depend on the current density derivation, the proposed method gives a very accurate solution not only for current density distribution and resistance but also for field components and for internal inductance coefficients. Distribution of current an



    The International Journal for Computation and Mathematics in Electrical and Electronic Engineering, 39 (3), vol. 39, issue 3, pp. 623-635, 2020, Bulgaria, EMERALD, DOI: 10.1108/COMPEL-10-2019-0382

    Вид: статия в списание, публикация в издание с импакт фактор, публикация в реферирано издание, индексирана в Scopus и Web of Science