Harmonic Analysis of Advanced Bus-Clamping PWM Techniques

Bhavsar, Tushar and Narayanan, G (2009) Harmonic Analysis of Advanced Bus-Clamping PWM Techniques. In: IEEE Transactions on Power Electronics, 24 (10). pp. 2347-2352.

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Abstract

Special switching sequences can be employed in space-vector-based generation of pulsewidth-modulated (PWM) waveforms for voltage-source inverters. These sequences involve switching a phase twice, switching the second phase once, and clamping the third phase in a subcycle. Advanced bus-clamping PWM (ABCPWM) techniques have been proposed recently that employ such switching sequences. This letter studies the spectral properties of the waveforms produced by these PWM techniques. Further, analytical closed-form expressions are derived for the total rms harmonic distortion due to these techniques. It is shown that the ABCPWM techniques lead to lower distortion than conventional space vector PWM and discontinuous PWM at higher modulation indexes. The findings are validated on a 2.2-kW constant $V/f$ induction motor drive and also on a 100-kW motor drive.

Item Type:	Journal Article
Publication:	IEEE Transactions on Power Electronics
Publisher:	IEEE
Additional Information:	Copyright 2009 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 analysis;harmonic distortion;induction motor drive;pulsewidth modulation(PWM);space vector PWM;voltage-source inverter
Department/Centre:	Division of Electrical Sciences > Electrical Engineering
Date Deposited:	16 Dec 2009 10:40
Last Modified:	19 Sep 2010 05:47
URI:	http://eprints.iisc.ac.in/id/eprint/23830

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