Reduction of Torque Ripple in Induction Motor Drives Using an AdvancedHybrid PWM Technique

Basu, Kaushik and Prasad, JS Siva and Narayanan, G and Krishnamurthy, Harish K and Ayyanar, Rajapandian (2010) Reduction of Torque Ripple in Induction Motor Drives Using an AdvancedHybrid PWM Technique. In: IEEE Transactions on Industrial Electronics, 57 (6). pp. 2085-2091.

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Abstract

A voltage source inverter-fed induction motor produces a pulsating torque due to application of nonsinusoidal voltages. Torque pulsation is strongly influenced by the pulsewidth modulation (PWM) method employed. Conventional space vector PWM (CSVPWM) is known to result in less torque ripple than sine-triangle PWM. This paper aims at further reduction in the pulsating torque by employing advanced bus-clamping switching sequences, which apply an active vector twice in a subcycle. This paper proposes a hybrid PWM technique which employs such advanced bus-clamping sequences in conjunction with a conventional switching sequence. The proposed hybrid PWM technique is shown to reduce the torque ripple considerably over CSVPWM along with a marginal reduction in current ripple.

Item Type:	Journal Article
Publication:	IEEE Transactions on Industrial Electronics
Publisher:	IEEE
Additional Information:	Copyright 2010 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Keywords:	Harmonic distortion;induction motor drives;pulsewidth modulated inverters;pulsewidth modulation (PWM);space vector;switching sequence; torque pulsation
Department/Centre:	Division of Electrical Sciences > Electrical Engineering
Date Deposited:	03 Jun 2010 05:13
Last Modified:	19 Sep 2010 06:07
URI:	http://eprints.iisc.ac.in/id/eprint/28169

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