Modeling of Anisotropic Magnetic Property in Motor Stator Cores Using Vector Play Model

The study shows that even non-oriented electrical steel sheets have strongly anisotropic magnetic characteristics. Accurate modeling of magnetic properties of core materials is of importance for improving motor performance and reducing energy consumption. In this paper, a vector play model is improved to describe anisotropic magnetic properties of electrical steel sheet based on experimental test, in which the vector shape function is expressed as the vector addition of those along two orthogonal direction, and its effectiveness is verified by experimental data. Finally, the proposed model is applied to simulate magnetic hysteresis loop distributions in local regions of stator core of an electrical machine.