Title :
Three-dimensional anisotropic magnetic field calculation in transformer cores
Author :
Shen, D. ; Sabonnadière, J.C. ; Meunier, G. ; Coulomb, J.l. ; Sacotte, M.
Author_Institution :
Lab. d´´Electrotech. de Grenoble, ENSIEG-INPG, St. Martin d´´Heres, France
fDate :
1/1/1988 12:00:00 AM
Abstract :
A three-dimensional anisotropic magnetic field calculation is performed in the analysis of the corner joints and T joints of transformer cores. Highly grain-oriented steel is used in such transformer cores. One approximate elliptic anisotropic model is chosen. The Newton-Raphson procedure is used for the nonlinear problem. A novel Newton-Raphson technique is proposed that accelerates the convergence and avoids the oscillation
Keywords :
magnetic cores; magnetic fields; transformers; Newton-Raphson procedure; T joints; convergence; corner joints; elliptic anisotropic model; nonlinear problem; three-dimensional anisotropic magnetic field calculation; transformer cores; Acceleration; Anisotropic magnetoresistance; Convergence; Magnetic analysis; Magnetic cores; Magnetic fields; Magnetic flux; Power transformers; Steel; Transformer cores;
Journal_Title :
Magnetics, IEEE Transactions on
