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Skewing in FLUX2D to reduce the Cogging Torque

User: "An Nguyen"
An Nguyen
Altair Community Member
Updated by An Nguyen

Hello every one,

Do anyone have experiency with the Skewing in FLUX 2D? (I also saw the Examples in FLUX, but it is for skewing of stator slot, not for magnet :D)

I'm designing a PMSM with salient Magnet and want to have a skew in magnet. The magnet is divided in 4 segments in axial direction. Each segment is skewed 1.875° with respect to each other.

To calculate the effect of skewing at no-load, i simulated the Motor with the magnetostatic mode. I simulated the motor with 1/4 length, so i simulated 4 times and for different rotor starting angle. At the end i add all the 4 cogging torque to get the reduced torque. Is this the correct way to investigate the effect of skewing?

By the way I don't know how to investigate the skewing effect at rated operation. Because there are also the current and the voltage, which are depent on length of motor. Can I use the same superposition method?

Thank you in advance

 

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