Title :
Analysis of magnetic characteristic in the three-phase transformer core considering two-dimensional magnetic anisotropic property
Author :
Zhang, Yanli ; Xu, Chunmiao ; Xie, Dexin ; Yoon, Hee Sung ; Koh, Chang Seop
Author_Institution :
Sch. of Electr. Engineening, Shenyang Univ. of Technol., Shenyang, China
Abstract :
This paper presents a magnetic reluctivity tensor model considering the two-dimensional magnetic anisotropy of the grain-oriented electrical steel sheet from the point of view of numerical implementation, in which the behavior of magnetic field intensity is explained in terms of magnitude and direction of magnetic flux density, and reluctivity tensor is derived into zero off-diagonals. The finite element formulation for considering the magnetic reluctivity tensor model is also derived. The model is applied to finite element analysis of transformer cores and the computed results are compared with traditional anisotropic model.
Keywords :
finite element analysis; magnetic anisotropy; magnetic fields; magnetic flux; power transformers; transformer cores; 2D magnetic anisotropic property; finite element analysis; grain-oriented electrical steel sheet; magnetic field intensity; magnetic flux density; magnetic reluctivity tensor; three-phase transformer core; Anisotropic magnetoresistance; Magnetic analysis; Magnetic anisotropy; Magnetic cores; Magnetic flux; Magnetic properties; Perpendicular magnetic anisotropy; Phase transformers; Tensile stress; Transformer cores; finite element analysis; magnetic reluctivity tensor model; transformer core; two-dimensional magnetic property;
Conference_Titel :
Electrical Machines and Systems, 2009. ICEMS 2009. International Conference on
Conference_Location :
Tokyo
Print_ISBN :
978-1-4244-5177-7
Electronic_ISBN :
978-4-88686-067-5
DOI :
10.1109/ICEMS.2009.5382912
