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Speed sensorless vector torque control of induction machines using a two-time-scale approach
IAS '96. Conference Record of the 1996 IEEE Industry Applications Conference Thirty-First IAS Annual Meeting
Conditions for observability of a linearized smoothairgap induction machine model are examined, and limitations of any speed-sensorless observer scheme based on such a model are discussed. An approach for speed-sensorless flux estimation based on singular perturbation theory is developed. This approach relies on the natural time-scale separation between the electrical and mechanical dynamics of the induction machine. A fullorder observer of an induction machine is presented, incorporating a
doi:10.1109/ias.1996.557016
fatcat:jx2iqkfgbnat3g5b3aklflzkli