Cogging Torque Reduction Methods in Magnetic Gears: A Comparative Study

Fatima Hussain Faris; Muhammed Khudair Rashid; Ahmed Mahmood Mohammed

doi:10.65542/djei.v2i1.33

Authors

Fatima Hussain Faris College of Electrical Engineering, University of Technology https://orcid.org/0009-0008-1642-8518
Muhammed Khudair Rashid College of Electrical Engineering, University of Technology
Ahmed Mahmood Mohammed College of Electrical Engineering, University of Technology https://orcid.org/0000-0003-1943-9868

DOI:

https://doi.org/10.65542/djei.v2i1.33

Keywords:

Radial flux density; Cogging torque; Torque ripple; Magnetic field.

Abstract

With the aim of studying the magnetic effect of cogging torque regarding the performance of magnetic gears (MGs), two approaches have been built and arranged in two parts. Firstly, a slicing approach has used and applied to the all parts (magnets, modulators, and back irons) of the MG to minimize the cogging torque (no load torque or static torque) generated in permanent magnet (PM) machines. Secondly, a slitting approach has used and applied only to the modulators of the MG. The two approaches have analyzed using finite element method and the results achieved the desired goal in mitigating the cogging torque. However, the useful torque is increased by the first method and slightly decreased by the second method.

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