I am working on speed sensorless direct torque control of induction motor and for that purpose I have estimated rotor flux accuratly now I want to estimate speed from rotor flux and is there any one who can help me to do so?
please check this paper:
C. Lascu, I. Boldea and F. Blaabjerg, "A modified direct torque control for induction motor sensorless drive," in IEEE Transactions on Industry Applications, vol. 36, no. 1, pp. 122-130, Jan.-Feb. 2000, doi: 10.1109/28.821806.
best regards,
Hello Krunal Shah ,
There are many ways to estimate the rotor speed. You can use one of the well-known observers like Extended Kalman filter, Extended Luenberger observer (I say the extended version of Kalman and Luenberger observer because the model of the Induction motor is nonlinear and rotor speed-dependent), High gain observer, sliding mode observer, model reference adaptive system (MRAS), fuzzy logic observer, neural network observer,...
In your situation, I recommend the use of MRAS because you have already estimated the motor current and flux
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