Introduction - If you have any usage issues, please Google them yourself
This paper proposes an exact (Kalman-like) observer for the
simultaneous state and parameter estimation in asynchronous
motors - including speed and resistant torque estimation -, as
well as a simulation study of its use under an estimate-based
speed control scheme. The simulation setup includes the model
of a PWM-controlled voltage source inverter, and the results
are quite promising.