NDLI: Minimization of torque ripple in DTC of induction motor using fuzzy mode duty cycle controller

Content Provider	IEEE Xplore Digital Library
Author	Abdalla, T.Y. Hairik, H.A. Dakhil, A.M.
Copyright Year	2010
Description	Author affiliation: Dept. of Computer Engineering, College of Engineering, University of Basrah, IRAQ (Abdalla, T.Y.; Hairik, H.A.) \|\| Dept. of Electrical Engineering, College of Engineering, University of Basrah, IRAQ (Dakhil, A.M.)
Abstract	Among all control methods for induction motor drives, Direct Torque Control (DTC) seems to be particularly interesting being independent of machine rotor parameters and requiring no speed or position sensors. The DTC scheme is characterized by the absence of PI regulators, coordinate transformations, current regulators and PWM signals generators. In spite of its simplicity, DTC allows a good torque control in steady state and transient operating conditions to be obtained. However, the presence of hysterics controllers for flux and torque could determine torque and current ripple and variable switching frequency operation for the voltage source inverter. This paper is aimed to analyze DTC principles, and the problems related to its implementation, especially the torque ripple and the possible improvements to reduce this torque ripple by using a proposed fuzzy based duty cycle controller. The effectiveness of the duty ratio method was verified by simulation using Matlab/Simulink software package. The results are compared with that of the traditional DTC models.
Starting Page	237
Ending Page	244
File Size	553064
Page Count	8
File Format	PDF
ISBN	9780956833006
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-11-30
Publisher Place	Iraq
Access Restriction	Subscribed
Rights Holder	Universtiy of Basrah
Subject Keyword	Torque Induction motors Rotors Switches Stators Inverters
Content Type	Text
Resource Type	Article

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