Rotor Faults

Rotor Faults

Classification

• in PMSM/BLDC:
  • Demagnetization
  • permanent magnet cracks
• in IM:
  • bar damage
  • broken end ring
  • windings related faults
  • iron related faults
  • broken rotor bars

Causes

• too many starts
• sudden action or outburst
• vibration
• physical damage
• excessive heat.

Effects

References

• cardosoDiagnosisFaultTolerance2018