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http://dx.doi.org/10.5370/JEET.2012.7.4.546

Intelligent Control for Torque Ripple Minimization in Combined Vector and Direct Controls for High Performance of IM Drive  

Boulghasoul, Zakaria (Faculty of Science and Technology, Cadi Ayyad University)
Elbacha, Abdelhadi (National School of Engineering, Cadi Ayyad University)
Elwarraki, Elmostafa (Faculty of Science and Technology, Cadi Ayyad University)
Publication Information
Journal of Electrical Engineering and Technology / v.7, no.4, 2012 , pp. 546-557 More about this Journal
Abstract
In Conventional Combined Vector and Direct Controls (VC-DTC) of induction motor, stator current is very rich in harmonic components. It leads to high torque ripple of induction motor in high and low speed region. To solve this problem, a control method based on the concept of fuzzy logic approach is used. The control scheme proposed uses stator current error as variable. Through the fuzzy logic controller rules, the choice of voltage space vector is optimized and then torque and speed are controlled successfully with a less ripple level in torque response, which improve the system's performance. Simulation results trough MATLAB/SIMULINK${(R)}$ software gave results that justify the claims.
Keywords
Combined vector and direct controls; Fuzzy control approach; Induction motor; Torque ripple minimization;
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