A METHOD OF CALCULATING MAGNETIC FIELDS TAKING INTO ACCOUNT THE THREE-DIMENSIONAL NONUNIFORMITY OF THE CORES OF ELECTRICAL MACHINES

摘要

A modified approach to calculating the magnetic fields of electrical machines with axial nonuniformity of their cores is proposed. The use of a two-dimensional numerical is proposed in which the properties of the magnetic media, the slot areas and the air gaps are simultaneously modified, which enables the structure of the cores to be taken into account along the axial direction. The magnetic flux linkages of the windings of electrical machines are determined using a topological approach, employing a universal method that enables the time taken to compute the magnetic fields, parameters, characteristics and phenomena in electrical machines to be reduced several-fold.