Flux-Weakening Regime Operation of an Interior Permanent-Magnet Synchronous Motor Drive

  title={Flux-Weakening Regime Operation of an Interior Permanent-Magnet Synchronous Motor Drive},
  author={Thomas M. Jahns},
  journal={IEEE Transactions on Industry Applications},
  • Thomas M. Jahns
  • Published 1987 in IEEE Transactions on Industry Applications
The interior permanent magnet (IPM) synchronous motor is compatible with extended-speed-range constant-power operation by means of flux-weakening control. Flux weakening uses stator current components to counter the fixed-amplitude magnetic airgap flux generated by the rotor magnets, performing a role similar to field weakening in a separately excited dc motor. The nature of current regulator saturation caused by the finite inverter dc source voltage is described, marked by premature torque and… CONTINUE READING
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