Elimination of saturation effects in sensorless position-controlled induction motors

  title={Elimination of saturation effects in sensorless position-controlled induction motors},
  author={Joachim Holtz and Hangwen Pan},
  journal={IEEE Transactions on Industry Applications},
Owing to the variable magnetic coupling between the stator windings and the discrete rotor bars of an induction motor, a quasicontinuous rotor position signal can be acquired by instantaneous measurement of the total leakage inductance of the three stator phases. The signals are sampled in synchronism with the regular commutations of the pulsewidth-modulation process, thus making the injection of additional high-frequency carriers obsolete. The acquired position signal exhibits high spatial… CONTINUE READING
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