Improvement of Demagnetization Resistance of Concentrated Winding IPMSM with Halbach Magnet Array using Obliquely Oriented Magnetized Magnets

Abstract

This paper considers the improvement of the demagnetization resistance of concentrated winding IPMSMs under high temperature environments by arranging magnets with different magnetic field orientations. The obliquely oriented magnetized magnets to which Halbach array is applied are arranged on the end face of the rotor, thus improving both the magnetic flux density and demagnetization resistance.