Farklý frekanslardaki tek-damarlý, Litz ve Folyo yapýlý iletkenlerin akým yoðunluðu, manyetik aký yoðunluðu ve omik kayýplarýnýn araþtýrýlmasý

Günümüzde, orta ve yüksek frekanslar, makine boyutunda önemli derecede küçülme saðlamasýna raðmen bu frekanslardan kaynaklanan kayýplarý da beraberinde getirmektedir. Elektrik makinalarýnda meydana gelen kayýplar özel sargý tasarýmlarý ile azaltýlabilmektedir. Bu çalýþmada ayný kesitteki tek damarlý iletken, litz iletken ve bakýr folyo iletken kayýplarý sonlu elemanlar yöntemi ile incelenmiþtir. Ayrýca frekansýn deðiþimine baðlý olarak iletkenlerdeki akým yoðunluðu, manyetik aký yoðunluðu ve omik kayýplar bir tasarým programý yardýmýyla incelenmiþ ve elde edilen grafikler verilmiþtir.

Investigation of current density, magnetic flux density, and ohmic losses for single-veined, Litz and foil structured conductors at different frequencies

Today, although medium and high frequencies have been provided a significant reduction in the size of machine, it is known that as the more frequency increases, the higher losses at conductors. In this study, wire losses of the same cross section but different structures are examined by finite elements method. Also, depending on the exchange rate in wires at conductors, changes of current density, magnetic flux density and ohmic losses were investigated. The use of different structured wires of conductors at different frequencies has been compared in terms of their losses, and given the graphics regarding to the design by special design software.