A hybrid method for determining the reluctivity tensor components of Goss textured ferromagnetic materials

Abstract

For anisotropic materials, the magnetic field vectorH and the flux density vectorB are parallel with each other only along a few distinct directions. When performing unidirectional measurements, only the component ofB along the direction under consideration is measured. It is not possible to deduce the angle betweenB andH from unidirectional measurements alone. For ferromagnetic materials having a Goss-texture, as most transformer steels have, this paper demonstrates a way to compute this angle a posteriori, by the combination of measurements with a physical anisotropy model.