BALKAN JOURNAL OF ELECTRICAL & COMPUTER ENGINEERING, vol.9, no.1, pp.83-91, 2021 (Refereed Journals of Other Institutions)
—In this study, it was aimed to carry out the design,
electromagnetic analysis and noise-vibration analysis of a 3
phase, high efficient surface-mounted permanent magnet motor
with a power level of 7.5kW and 1500rpm speed. Using basic
analytical formulas initial design geometry of the motor was
obtained. This first design geometry was investigated in detail by
electromagnetic analyzes. In these electromagnetic analyzes,
cogging torque, torque ripple, losses and efficiency parameters
have been investigated. Then, modal and harmonic analyzes were
carried out in order to interpret the effect of radial harmonic
forces, obtained from electromagnetic analyzes, on the stator
teeth on the noise and vibration parameters of the motor.
According to the analysis result of the initial designed motor, it was
aimed to reduce cogging torque, torque ripple, efficiency, noise
and vibration parameters. It is thought that the improvement
studies to be performed in the cogging torque will also have a
positive effect on the torque ripple and vibration on the motor.
By optimizing studies performed on magnet and lamination
geometry, new motor geometry has been obtained.
Electromagnetic, modal, harmonic analyzes were made this new
motor geometry. Analysis results of the new design and the first
design were studied comparatively.