- Tytuł:
- Investigation of GIC effects on core losses in single phase power transformers
- Autorzy:
-
Mousavi, S.A.
Engdahl, G.
Agheb, E. - Powiązania:
- https://bibliotekanauki.pl/articles/141321.pdf
- Data publikacji:
- 2011
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
transformator energetyczny
prądy indukowane geomagnetycznie
histereza
power transformers
geomagnetically induced currents
hysteresis - Opis:
- This paper presents a method for estimation of core losses in banks of single phase power transformers that are subjected to an injected DC current such as geomagnetically induced currents (GIC). The main procedure of the core loss calculation is to obtain a magnetic flux density waveform in both time and location by using a novel algorithm based on 3D FEM inside the core and then to calculate the loss distribution based on loss separation theory. Also, a simple and effective method is proposed for estimation of losses of asymmetric minor loops by using combination of symmetric loops. The effect of DC biasing on core losses in single phase power transformers is investigated and the sensitivity of core type and material is evaluated. the results shows that DC current biasing could increase core losses up to 40 percent or even more.
- Źródło:
-
Archives of Electrical Engineering; 2011, 60, 1; 35-47
1427-4221
2300-2506 - Pojawia się w:
- Archives of Electrical Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł