Sensorless control of induction Machines at zero and low frequency using zero sequence currents

@article{Staines2006SensorlessCO,
  title={Sensorless control of induction Machines at zero and low frequency using zero sequence currents},
  author={Cyril Spiteri Staines and Cedric Caruana and Gregory M. Asher and Mark Sumner},
  journal={IEEE Transactions on Industrial Electronics},
  year={2006},
  volume={53},
  pages={195-206}
}
This paper considers both flux and rotor position estimations for sensorless control of delta-connected cage induction machines (IMs) at low and zero frequency operation. The variation of leakage inductance due to either saturation or rotor slotting is tracked by measuring the derivative of the zero sequence current in response to the application of appropriate voltage test vectors. The method requires only a single extra sensor. It requires access to machine phase windings and is appropriate… CONTINUE READING
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