Abstract

This paper describes various rotor geometries for the axial end region of permanent magnet synchronous machines (PMSMs) with the aim of reducing the axial magnetic stator flux component. This is achieved by considering the degrees of freedom for the three-dimensional geometry provided by state-of-the-art manufacturing technologies. The comparison of various approaches against conventional arrangements is discussed based on the effects on the axial magnetic stator flux in the end region and on the magnetic flux within the air-gap.

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