Electromagnetic-thermal Model For Power Cables Analysis
Author(s)
N. Kovač, I. Sarajčev, D. Poljak & B. Jajac
Abstract
Electromagnetic-thermal model for power
cables analysis
N. Kovat, I. Savajc'ev, D. Poljak & B. Jajac
Split University, Croatia
Abstract
The original non-linear coupled electromagnetic-thermal model of the extruded
sheath power cables is presented. The model is related to the calculation of the
ampacity.
The computation of the currents and Joule losses is performed by means of
filament method. The method provides the conductors and sheaths to be replaced
by a large number of smaller subconductors or filaments. The heat transfer
phenomena including infinite domain are modelled using the combination of the
finite elements and mapped infinite elements. The corresponding finite element
mesh is generated by the advancing front method. The developed mesh generator
based on this method creates triangle elements inside a domain starting from the
polygonal discretisation of its border.
The results based on the coupled electromagnetic-thermal model are
compared with the results obtained using the IEC re
Keywords
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