Title :
Computation Method for Transients in Power Transformers With Lossy Windings
Author :
Lopez-Fernandez, Xose M. ; Alvarez-Marino, Casimiro
Author_Institution :
Dept. of Electr. Eng., Univ. de Vigo, Vigo
fDate :
3/1/2009 12:00:00 AM
Abstract :
In this paper, a detailed method for computing the transient internal voltage distribution in transformers is described. The proposed model is based on RLCG lumped frequency-dependent parameters for time-domain analysis. The numerical Laplace transform in s -complex plane is used. The method is appropriate to solve lossy circuits at high frequencies (HFs). Numerical results confirm the good agreement with experimental measurements from the literature.
Keywords :
Laplace transforms; high-frequency transformers; modal analysis; time-domain analysis; transformer windings; transient analysis; RLCG lumped frequency-dependent parameters; high frequencies; lossy circuits; lossy windings; modal model; numerical Laplace transform; power transformers; time-domain analysis; transient internal voltage distribution; very fast electromagnetic transients; Interturn voltage; lossy windings; modal model; numerical Laplace; transformer; very fast electromagnetic transients (VFETs);
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2009.2012834
