Technical Development of Concentrated Flux IPM Motor

Abstract

　The magnet arrangement of the concentrated flux IPM motor, that concentrates the magnetic flux from the magnet at the air gap, was considered. A prototype motor was experimentally manufactured and evaluated. In this study, it is confirmed that the proposed concentrated flux IPM motor can achieve a torque which is twice that of the existing SPM motor. The problems with manufacturing is identified and the measures to counter those is considered.