Tehnički vjesnik, Vol. 19 No. 2, 2012.
Izvorni znanstveni članak
A hybrid algorithm for computation of rectangular conductor internal impedance
Vedran Boras
; University of Split, Faculty of Natural Sciences and Mathematics, Department for Polytechnic, Teslina 12, 21 000 Split, Croatia
Slavko Vujević
orcid.org/0000-0002-1898-1746
; University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, Ruđera Boškovića 32, 21 000 Split, Croatia
Dino Lovrić
; University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, Ruđera Boškovića 32, 21 000 Split, Croatia
Sažetak
A hybrid algorithm for the computation of rectangular conductor per unit length internal impedance is developed. Up to a switching frequency, the internal impedance is computed using a two-dimensional analytical formula developed by Giacoletto. For these frequencies, 150 terms of Giacoletto infinite sum give a sufficiently good approximation. For higher frequencies, it is shown that the rectangular conductor can be quite accurately approximated by a cylindrical conductor. The proposed hybrid algorithm, for higher frequencies, features improved accuracy and speed when compared to the Giacoletto formula truncated after a small number of terms.
Ključne riječi
cylindrical conductor; exponential approximation; internal impedance; rectangular conductor
Hrčak ID:
83909
URI
Datum izdavanja:
29.6.2012.
Posjeta: 2.241 *