NDLI: Torque Ripple Minimization Strategy for Direct Torque Control of Induction Motors

Content Provider	IEEE Xplore Digital Library
Author	Gao Sheng-wei Cai Yan
Copyright Year	2010
Abstract	In the traditional direct torque control (DTC) of induction motor, the low order harmonic component of stator current is very large when the motor is running at low speed. It leads to high torque ripple of motor in low speed. To solve this problem, a new control method has been proposed in this paper. Base on the traditional DTC method, electromagnetic torque and flux models have been analyzed. To further improve the torque response and reduce the torque ripple, fuzzy logic concept has been introduced into the flux model. The method of dynamic adjustment of the torque hysteresis amplitude is proposed. In this model, fuzzy variables are the speed and stator current error. Through the rationalization of fuzzy classification, the choice of voltage space vector is optimized. The results of simulation and experiment show that the method can not only improve the speed of torque response, and the problem of torque ripple can be effectively solved. In the whole speed range, the performance of dynamic and static is better than that of the conventional DTC.
Starting Page	148
Ending Page	151
File Size	283416
Page Count	4
File Format	PDF
ISBN	9781424485482
DOI	10.1109/ICINIS.2010.82
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-11-01
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Torque Induction motors direct torque control(DTC) Adaptation model induction motor Rotors Torque ripple Hysteresis motors fuzzy logic Stators Hysteresis
Content Type	Text
Resource Type	Article

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