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The skew angle is calculated as 360/(?????? (????,????)), where ?????? represents the least common multiple of the number of slots (????) and the number of poles (????).
For example, with 48 slots and 8 poles, the optimal skew angle is 7.5°.
In Permanent Magnet Synchronous Motors (PMSM), skewing the rotor laminations plays a crucial role in optimizing performance.
- Skewing introduces an angular displacement of rotor slots relative to stator slots, effectively averaging out magnetic forces. This reduces cogging torque, resulting in smoother operation and enhanced torque consistency.
- The skewed rotor disrupts periodic magnetic flux variations, decreasing harmonic distortions. This leads to improved motor efficiency by minimizing harmonic losses and acoustic noise.
- By skewing the rotor, the interaction between the rotor and stator teeth is spread over a larger area. This critical design change results in a more even distribution of torque, reducing ripple.
With #MotorWizard by EMWorks, you can efficiently determine the optimal skew angle, analyze its impact on cogging torque, harmonic distortion, and torque ripple, and make data-driven design decisions to enhance your PMSM’s efficiency and performance.
#motorwizard #pmsm #skewangle?#simulationsoftware
