Abstract

Axial flux permanent magnet machines (AFPM) became popular due to their effective profile. But AFPM machines have hard processes on production. Thus, some errors happen at the slot opening area and these errors affect the torque production. So, torque ripples occur. This paper shows the slot opening errors’ effect on the torque. An analytical model has been used to demonstrate the problem. Also, random slot opening width taken randomly with the ten per cent constraint. Results show that slot opening errors have impacts on the torque ripples.

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