Naslov
Fast computation of electric field and capacitance matrix of transformer windings with boundary element method and adaptive cross approximation

Autori
Drandić, Ana ; Trkulja, Bojan

Izvornik
IET electric power applications (1751-8660) 13 (2019), 9; 1422-1427

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
integral equations ; matrix algebra ; geometry ; electric fields ; boundary-elements methods ; transformer windings ; computational electromagnetics ; power transformers ; adaptive cross approximation algorithm ;

Sažetak
Accurate and fast computation of electric fields is of great interest in transformer design. This article presents a fast and precise method of computation of electric field of transformer windings based on the boundary element method and integral equations approach. Additionally, computation of the capacitance matrix of a transformer geometry is presented. Proposed methodology depends on the knowledge of the transformer geometry. Improvement in computational costs and memory requirements of the developed electrostatic solver is achieved by implementation of the adaptive cross approximation algorithm. Results are benchmarked against commercial software based on the finite element method and applicability of the developed solver is proven.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

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