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TITLE : FUZZY CONTROL OF MULTILEVEL INVERTER FED DIRECT TORQUE CONTROL SCHEME FOR INDUCTION MOTOR DRIVE  
AUTHORS : G. Pandian      S. Rama Reddy            
DOI : http://dx.doi.org/10.18000/ijies.30036  
ABSTRACT :

This paper presents simulation of fuzzy logic controller based Direct Torque Control (DTC) using Matlab / Simulink. This controller is designed to be applied in the control of three-level voltage source inverter (VSI) fed induction motor. This type of inverter has several advantages over the standard VSI, such as a greater number of levels in the output voltage waveforms, lower dv/dt, less harmonic distortion in voltage and current waveforms and lower switching frequencies. In the new controller, torque and stator flux errors are used together with the stator flux angular frequency to generate a reference voltage vector. The new controller is found to reduce the torque ripple.

Key words: Direct torque and flux control, induction motor, multilevel inverter, SVM, fuzzy logic controller.

 
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