A study on the iron loss characteristics of an Inset-Permanent-Magnet-Type flux-reversal machine

Flux-reversal machine (FRM) is a new doubly-salient stator-permanent magnet (PM) machine with flux linkage reversal in the stator concentrated windings. The simple structure makes it cost effective and suitable for mass production. However, there is a notable permanent magnet flux leakage which deteriorates the torque ability of the FRM. To overcome the weakness, an Inset-Permanent-Magnet-Type FRM has been proposed. This FRM has permanent magnets parallel to the stator magnet flux lines and thus is much more difficult to demagnetize. In this paper, we deals with the various iron loss characteristics of the Inset-type FRM using a two-dimensional finite-element method (2D FEM).