Experimental Investigation on the Effect of Advanced Bus-Clamping Pulsewidth Modulation on Motor Acoustic Noise

Binojkumar, AC and Prasad, Siva JC and Narayanan, G (2012) Experimental Investigation on the Effect of Advanced Bus-Clamping Pulsewidth Modulation on Motor Acoustic Noise. In: IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 60 (2). pp. 433-439.

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Abstract

Voltage source inverters (VSIs) supply nonsinusoidal voltages to induction motor drives, leading to line current distortion and torque pulsation. Conventional space vector pulsewidth modulation (PWM) techniques are widely used in VSIs on the account of good waveform quality and high dc bus utilization. In a conventional space vector PWM technique, the switching sequence begins with one zero state and ends with the other zero state in a subcycle. Some novel switching sequences have been proposed, which employ only one zero state but apply one of the two active states twice in a subcycle. One pair of such special switching sequences has recently been shown to reduce the pulsating torque considerably. In this paper, the conventional and special switching sequences are compared experimentally in terms of acoustic noise. In the low-and medium-speed ranges, the special switching sequence is seen to reduce the amplitude of the tonal component of noise at the switching frequency considerably and is also found to result in spread spectrum.

Item Type:	Journal Article
Publication:	IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
Publisher:	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Additional Information:	Copyright for this article belongs to the IEEE
Keywords:	Acoustic noise; advanced bus-clamping pulsewidth modulation (PWM) (ABCPWM); electromagnetic noise; induction motor drives; pulsewidth-modulated inverter; PWM; space vector; spread spectrum; switching sequences; torque pulsation
Department/Centre:	Division of Electrical Sciences > Electrical Engineering
Date Deposited:	07 Jan 2013 10:26
Last Modified:	07 Jan 2013 10:26
URI:	http://eprints.iisc.ac.in/id/eprint/45245

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