Prototype Verification of Flux Reversal Motor With Cross-Pole Shape Stator

Abstract

A flux reversal motor (FRM) is one of the doubly salient permanent magnet (PM) motors. It has an advantage in torque density and a straightforward structure. Thus, the FRM has attracted the attention of both researchers and developers in recent years. First, this article demonstrates an optimized-designed proposed high-performance FRM with a cross-pole shape stator. Compared with the conventional flux reversal machine, the proposed FRM used less PMs to prevent magnetic saturation and enhance torque density. Also, the optimized-designed cross-pole shape FRM can tremendously reduce eddy current losses in PMs and increase motor efficiency. This article provides a detailed analysis of the finite element method (FEM) and the prototype test results of the proposed FRM, which is proven the usability of cross-pole shape FRM.