A fuzzy logic direct torque control for induction motor sensorless drive

However, direct torque control (DTC), over years, is known to provide high dynamic performance and also fast and robust response for induction motors (IM), classical DTC produces notable torque, flux ripples. In the present paper, fuzzy logic has been suggested to improve the system performance (i.e...

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Bibliographic Details
Main Authors: Sheidaei, F., Sedighizadeh, M., Mohseni-Zonoozi, S.H., Alinejad-Beromi, Y.
Format: Conference Proceeding
Language:English
Subjects:
AC Drives
Direct torque control (DTC)
Error correction
Fuzzy logic
fuzzy logic direct torque control (FLDTC)
Hysteresis motors
Induction motor(IM)
Induction motors
Inverters
Petroleum
Stators
Tellurium
Torque control
Voltage
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Summary:However, direct torque control (DTC), over years, is known to provide high dynamic performance and also fast and robust response for induction motors (IM), classical DTC produces notable torque, flux ripples. In the present paper, fuzzy logic has been suggested to improve the system performance (i.e. gives faster torque and flux responses and also reducing the undesirable torque ripple that can occur in the output torque). In this controller, torque error, flux error and also the position of stator flux are as inputs and the output of it is a suitable voltage vector which should apply to the motor. In this paper to reduce the number of rules and also increase controller's speed, we use particular mapping for the stator flux position. Compared with conventional DTC, this method is easily implemented for induction machine, the ripples of both torque and flux are reduced remarkable. Simulation results proved the superiority of the novel approach.
DOI:10.1109/UPEC.2007.4468946