Application Of Concentrated Windings In The Interior Permanent Magnet Machine

摘要

The use of concentrated windings in the interior permanent magnet (IPM) machine reduces its axial length and increases high-speed performance by enhancing its flux-weakening capability, although at the expense of higher cogging torque, decrease in winding factor and saliency ratio. In order to take full advantage of the concentrated winding in the IPM machine, these factors have to be minimised. This paper is part of a detailed investigation in which the authors will attempt to optimise the concentrated winding structure for a high performance IPM machine. The full review of the existing optimisation technologies for the concentrated winding applied to the permanent magnet machine is the first step toward developing new methods for the IPM machine. This paper presents the study of the various optimisation techniques of the concentrated windings and their suitability in context with the IPM machine.