ON THE NUMERICAL COMPUTATION OF CYLINDRICAL CONDUCTOR INTERNAL IMPEDANCE FOR COMPLEX ARGUMENTS OF LARGE MAGNITUDE

Slavko Vujevic, Dino Lovrić

DOI Number
10.2298/FUEE1701081V
First page
81
Last page
91

Abstract


In this paper a numerical algorithm for computation of per-unit-length internal impedance of cylindrical conductors under complex arguments of large magnitude is presented. The presented algorithm either numerically solves the scaled exact formula for internal impedance or employs asymptotic approximations of modified Bessel functions when applicable. The formulas presented can be used for computation of per-unit-length internal impedance of solid cylindrical conductors as well as tubular cylindrical conductors.


Keywords

internal impedance, modified Bessel functions, large function arguments, scaling

Full Text:

PDF

References


S. Vujević, D. Lovrić, "On the numerical computation of cylindrical conductor internal impedance for complex arguments of large magnitude", In Proceedings of the Extended Abstracts of the 12th International Conference on Applied Electromagnetics (ПЕС 2015), Niš, Serbia, 2015, pp. (P1_1) 1-4.

P. Sarajčev, S. Vujević, "Grounding Grid Analysis: Historical Background and Classification of Methods", International Review of Electrical Engineering, vol. 4, pp. 670-683, 2009.

H. W. Dommel, "EMTP Theory Book, 2nd edition", Microtran Power System Analysis Corporation, 1992.

F. P. Dawalibi, R. D. Southey, "Analysis of electrical interference from power lines to gas pipelines - Part I: Computation methods", IEEE Transactions on Power Delivery, vol. 4, no. 3, pp. 1840-1846, 1989.

J. Moore, R. Pizer, "Moment Methods in Electromagnetics - Techniques and Applications", John Wiley and Sons, 2007.

J. A. Stratton, "Electromagnetic theory", John Wiley & Sons, 2007.

S. Vujević, D. Lovrić, V. Boras, "High-Accurate Numerical Computation of Internal Impedance of Cylindrical Conductors for Complex Arguments of Arbitrary Magnitude", IEEE Transactions on Electromagnetic Compatibility, vol. 56, pp. 1431-1438, 2014.

M. Abramowitz, I. A. Stegun, "Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables", Dover Publications, 1964.


Refbacks

  • There are currently no refbacks.


ISSN: 0353-3670 (Print)

ISSN: 2217-5997 (Online)

COBISS.SR-ID 12826626