Finite element analysis of transformer model core with measured reluctivity tensor
- Oita Univ. (Japan). Dept. of Electrical and Electronic Engineering
The study of soft magnetic materials commonly used in rotating machines and three-phase transformers is very important for saving energy. In order to save energy, the authors have to solve lots of problems, for which they have to grasp correct behaviors of B and H in core materials, and improve finite element formulations considering the properties. This paper presents a new expression of the vector magnetic properties under alternating and rotating flux conditions. The expression is defined by an improved reluctivity tensor based on measured results. Moreover, the expression is more accurate than conventional expressions about the approximation of magnetic properties in arbitrary direction. Accordingly, the new expression is introduced into a finite element formulation, and applied to a simple anisotropic magnetic field problem. As a result, it is shown that the expression is applicable generally to anisotropic problems.
- OSTI ID:
- 566472
- Report Number(s):
- CONF-970468-; ISSN 0018-9464; TRN: IM9805%%148
- Journal Information:
- IEEE Transactions on Magnetics, Vol. 33, Issue 5Pt2; Conference: 1997 IEEE international magnetics conference (Intermag `97), New Orleans, LA (United States), 1-4 Apr 1997; Other Information: PBD: Sep 1997
- Country of Publication:
- United States
- Language:
- English
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