الفهرس 
chapter 1Only 14 pages are availabe for public view
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Abstract
This thesis introduces a modified control scheme to improve the performance of induction motor. The proposed method by using DTC method, space vector control method, linear variable structure with DTC and proposed current control model.
Inthe proposed strategy, the torque ripple equation is derived using instantneous torque equations and, at each switching cycle, an optimal switching instant which satisfies the minimum torque-ripple condition is determind based on the ripple equqtion.