IMPROVED MAGNETIC-FIELD ANALYSIS OF INDUCTION-MOTOR MODELS

This paper presents an improved magnetic field analysis for induction motor models. In the analysis with the conventional numerical modeling of magnetic materials, the vector relations between the flux density and the field intensity under a rotating field can not be expressed ex actly. In this paper, we derived the tensor magnetic reluctivity from the data measured with two-dimensional measurement method. This expres sion is applied to analyze a three-phase induction motor model core. T he examples show that the calculated results obtained by our new metho d are different from those of the conventional modeling.