What it means zero order harmonic frequency in Motor-CAD

- May 16, 2023 at 4:04 am
  
  issong
  Subscriber
  
  I don't know well what it means zero frequency order magnitude.
  how can i treat it ?
  Please reply anybody.
- May 17, 2023 at 12:48 pm
  
  HDLI
  Ansys Employee
  
  Hello issong,
  0 order (0 Hz) means we have DC component in cogging torque.
  Could you enter more value in “points per cycle” of cogging torque calculations of input data -> settings -> calculation?
  The cogging torque frequency is the LCM (least Common Multiplier) of rotor pole and stator pole number, so we may need a good number for the points per cycle, to present correct cogging torque frequency.
  Howard

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