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Content Provider | IEEE Xplore Digital Library |
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Author | Brahmananda Reddy, T. Amarnath, J. Subbarayudu, D. |
Copyright Year | 2006 |
Description | Author affiliation: Dept. of Electr. & Electron. Eng., G.Pulla Reddy Eng. Coll., Kurnool (Brahmananda Reddy, T.) |
Abstract | This paper presents novel hybrid SVPWM (HSVPWM) methods for direct torque controlled induction motor drives without angle estimation to reduce steady state ripple in current, torque and flux. The proposed PWM technique is designed based on the notion of stator flux ripple, which is a measure of line current ripple. Expressions for RMS ripple, over a sub-cycle are derived for each switching sequence in terms of reference voltage vector, imaginary switching times and sub-cycle duration. This analysis together with the THD performance is used to design new HSVPWM techniques, which result in reduction in THD. The proposed PWM methods simplify the control algorithm and also reduce the execution time. Also to improve the speed performance under uncertainties caused by load torque, a robust speed controller with an integral sliding switching surface is used. To validate the proposed method, the results are presented. |
Starting Page | 1 |
Ending Page | 6 |
File Size | 6681722 |
Page Count | 6 |
File Format | |
ISBN | 0780397711 |
DOI | 10.1109/PEDES.2006.344416 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 2006-12-12 |
Publisher Place | India |
Access Restriction | Subscribed |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Space vector pulse width modulation Torque control Induction motor drives State estimation Steady-state Stators Current measurement Voltage Performance analysis Uncertainty sliding mode controller Direct torque control flux ripple hybrid SVPWM |
Content Type | Text |
Resource Type | Article |
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