Acquisition of rotor anisotropy signals in sensorless position control systems

@article{Holtz2003AcquisitionOR,
  title={Acquisition of rotor anisotropy signals in sensorless position control systems},
  author={Joachim Holtz and Hangwen Pan},
  journal={IEEE Transactions on Industry Applications},
  year={2003},
  volume={40},
  pages={1379-1387}
}
Sensorless position control of induction motors relies on the detection of rotor anisotropies. The repetitive transient excitation through the switched voltages of the pulsewidth-modulated inverter provides the test signals to identify the spatial orientation of the anisotropies that indicate the rotor position. The position information is contained in the inverter output voltages. These are measured against the neutral point of the star connected stator winding. The signals are heavily… CONTINUE READING

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