Naslov
Core-type transformer short-circuit voltage calculation using conformal mapping

Autori
Jurković, Mario ; Žarko, Damir

Izvornik
IET electric power applications (1751-8660) 14 (2020), 12; 2422-2430

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

Ključne riječi
Short-circuit voltage, conformal mapping, Schwarz-Christoffel transformation

Sažetak
This study describes a method for calculation of transformer short-circuit voltage using conformal mappings, which map the transformer longitudinal and transverse cross-section geometry to a unit disk where an analytical solution for magnetic flux density is obtained and then transformed back to the original domain. The short-circuit voltage is calculated by the integration of the magnetic energy of the leakage field in the windings and the space around windings, excluding the core. This method takes into account windings of different height, the fringing effect at the ends of the windings and any relative position of windings located on the same or different limbs. Also, it is possible to calculate the short-circuit voltage for multiple windings.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA