Performance Improvement of Axial Switched Reluctance Motor using Low-Cost Magnet

A Switched reluctance motor (SRM) is known characterized by a robust, simple structure, and low cost. However, its torque density is generally lower than the induction motor (IM) and brushless DC motor (BLDC). In addition, axial SRM produces more torque than radial SRM by the same dimension. In this paper, performance improvement of axial SRM by adding a low-cost magnet in the stator yoke is investigated. A nonrare earth type magnet, Alnico, has been used for this research. Placement and dimensions of low-cost magnet affect performance improvement. Simulation and analysis using Finite Element Magnetic Method (FEMM) and Ansys Maxwell. A comparison between existing axial SRM and axial SRM with low-cost magnet is reported.

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